White County..................  ..............  Unclassifiable/
                                                     Attainment
    Woodruff County...............  ..............  Unclassifiable/
                                                     Attainment
AQCR 021 Northwest Arkansas
 Intrastate:
    Baxter County.................  ..............  Unclassifiable/
                                                     Attainment
    Boone County..................  ..............  Unclassifiable/
                                                     Attainment
    Carroll County................  ..............  Unclassifiable/
                                                     Attainment
    Cleburne County...............  ..............  Unclassifiable/
                                                     Attainment
    Franklin County...............  ..............  Unclassifiable/
                                                     Attainment
    Fulton County.................  ..............  Unclassifiable/
                                                     Attainment
    Izard County..................  ..............  Unclassifiable/
                                                     Attainment
    Johnson County................  ..............  Unclassifiable/
                                                     Attainment
    Logan County..................  ..............  Unclassifiable/
                                                     Attainment
    Madison County................  ..............  Unclassifiable/
                                                     Attainment
    Marion County.................  ..............  Unclassifiable/
                                                     Attainment
    Montgomery County.............  ..............  Unclassifiable/
                                                     Attainment
    Newton County.................  ..............  Unclassifiable/
                                                     Attainment
    Pike County...................  ..............  Unclassifiable/
                                                     Attainment
    Polk County...................  ..............  Unclassifiable/
                                                     Attainment
    Scott County..................  ..............  Unclassifiable/
                                                     Attainment
    Searcy County.................  ..............  Unclassifiable/
                                                     Attainment
    Stone County..................  ..............  Unclassifiable/
                                                     Attainment
    Van Buren County..............  ..............  Unclassifiable/
                                                     Attainment
AQCR 022 Shreveport-Texarkana-
 Tyler Interstate:
    Columbia County...............  ..............  Unclassifiable/
                                                     Attainment

    Hempstead County..............  ..............  Unclassifiable/
                                                     Attainment
    Howard County.................  ..............  Unclassifiable/
                                                     Attainment
    Lafayette County..............  ..............  Unclassifiable/
                                                     Attainment
    Little River County...........  ..............  Unclassifiable/
                                                     Attainment
    Miller County.................  ..............  Unclassifiable/
                                                     Attainment
    Sevier County.................  ..............  Unclassifiable/
                                                     Attainment
Memphis, TN-AR: (AQCR 018
 Metropolitan Memphis Interstate):
    Crittenden County.............  ..............  Unclassifiable/
                                                     Attainment
----------------------------------------------------------------------------------------------------------------
\a\ Includes Indian Country located in each county or area, except as otherwise specified.
\1\ This date is 90 days after January 5, 2005, unless otherwise noted.

                                       Arkansas--1997 24-Hour PM2.5 NAAQS
                                             [Primary and secondary]
----------------------------------------------------------------------------------------------------------------
                                               Designation \a\                         Classification
          Designated area          -----------------------------------------------------------------------------
                                       Date \1\              Type               Date                Type
----------------------------------------------------------------------------------------------------------------
AQCR 016 Central Arkansas
 Intrastate:
    Chicot County.................  ..............  Unclassifiable/
                                                     Attainment
    Clark County..................  ..............  Unclassifiable/
                                                     Attainment
    Cleveland County..............  ..............  Unclassifiable/
                                                     Attainment
    Conway County.................  ..............  Unclassifiable/
                                                     Attainment
    Dallas County.................  ..............  Unclassifiable/
                                                     Attainment
    Desha County..................  ..............  Unclassifiable/
                                                     Attainment
    Drew County...................  ..............  Unclassifiable/
                                                     Attainment
    Faulkner County...............  ..............  Unclassifiable/
                                                     Attainment
    Garland County................  ..............  Unclassifiable/
                                                     Attainment
    Grant County..................  ..............  Unclassifiable/
                                                     Attainment
    Hot Spring County.............  ..............  Unclassifiable/
                                                     Attainment
    Jefferson County..............  ..............  Unclassifiable/
                                                     Attainment
    Lincoln County................  ..............  Unclassifiable/
                                                     Attainment
    Lonoke County.................  ..............  Unclassifiable/
                                                     Attainment
    Perry County..................  ..............  Unclassifiable/
                                                     Attainment
    Pope County...................  ..............  Unclassifiable/
                                                     Attainment
    Pulaski County................  ..............  Unclassifiable/
                                                     Attainment
    Saline County.................  ..............  Unclassifiable/
                                                     Attainment
    Yell County...................  ..............  Unclassifiable/
                                                     Attainment
AQCR 017 Metropolitan Fort Smith
 Interstate:
    Benton County.................  ..............  Unclassifiable/
                                                     Attainment
    Crawford County...............  ..............  Unclassifiable/
                                                     Attainment
    Sebastian County..............  ..............  Unclassifiable/
                                                     Attainment
    Washington County.............  ..............  Unclassifiable/
                                                     Attainment
AQCR 019 Monroe-El Dorado
 Interstate:
    Ashley County.................  ..............  Unclassifiable/
                                                     Attainment
    Bradley County................  ..............  Unclassifiable/
                                                     Attainment
    Calhoun County................  ..............  Unclassifiable/
                                                     Attainment
    Nevada County.................  ..............  Unclassifiable/
                                                     Attainment
    Ouachita County...............  ..............  Unclassifiable/
                                                     Attainment
    Union County..................  ..............  Unclassifiable/
                                                     Attainment
AQCR 020 Northeast Arkansas
 Intrastate:
    Arkansas County...............  ..............  Unclassifiable/
                                                     Attainment
    Clay County...................  ..............  Unclassifiable/
                                                     Attainment
    Craighead County..............  ..............  Unclassifiable/
                                                     Attainment
    Cross County..................  ..............  Unclassifiable/
                                                     Attainment
    Greene County.................  ..............  Unclassifiable/
                                                     Attainment
    Independence County...........  ..............  Unclassifiable/
                                                     Attainment
    Jackson County................  ..............  Unclassifiable/
                                                     Attainment
    Lawrence County...............  ..............  Unclassifiable/
                                                     Attainment
    Lee County....................  ..............  Unclassifiable/
                                                     Attainment
    Mississippi County............  ..............  Unclassifiable/
                                                     Attainment
    Monroe County.................  ..............  Unclassifiable/
                                                     Attainment
    Phillips County...............  ..............  Unclassifiable/
                                                     Attainment
    Poinsett County...............  ..............  Unclassifiable/
                                                     Attainment
    Prairie County................  ..............  Unclassifiable/
                                                     Attainment
    Randolph County...............  ..............  Unclassifiable/
                                                     Attainment
    St. Francis County............  ..............  Unclassifiable/
                                                     Attainment

    Sharp County..................  ..............  Unclassifiable/
                                                     Attainment
    White County..................  ..............  Unclassifiable/
                                                     Attainment
    Woodruff County...............  ..............  Unclassifiable/
                                                     Attainment
AQCR 021 Northwest Arkansas
 Intrastate:
    Baxter County.................  ..............  Unclassifiable/
                                                     Attainment
    Boone County..................  ..............  Unclassifiable/
                                                     Attainment
    Carroll County................  ..............  Unclassifiable/
                                                     Attainment
    Cleburne County...............  ..............  Unclassifiable/
                                                     Attainment
    Franklin County...............  ..............  Unclassifiable/
                                                     Attainment
    Fulton County.................  ..............  Unclassifiable/
                                                     Attainment
    Izard County..................  ..............  Unclassifiable/
                                                     Attainment
    Johnson County................  ..............  Unclassifiable/
                                                     Attainment
    Logan County..................  ..............  Unclassifiable/
                                                     Attainment
    Madison County................  ..............  Unclassifiable/
                                                     Attainment
    Marion County.................  ..............  Unclassifiable/
                                                     Attainment
    Montgomery County.............  ..............  Unclassifiable/
                                                     Attainment
    Newton County.................  ..............  Unclassifiable/
                                                     Attainment
    Pike County...................  ..............  Unclassifiable/
                                                     Attainment
    Polk County...................  ..............  Unclassifiable/
                                                     Attainment
    Scott County..................  ..............  Unclassifiable/
                                                     Attainment
    Searcy County.................  ..............  Unclassifiable/
                                                     Attainment
    Stone County..................  ..............  Unclassifiable/
                                                     Attainment
    Van Buren County..............  ..............  Unclassifiable/
                                                     Attainment
AQCR 022 Shreveport-Texarkana-
 Tyler Interstate:
    Columbia County...............  ..............  Unclassifiable/
                                                     Attainment
    Hempstead County..............  ..............  Unclassifiable/
                                                     Attainment
    Howard County.................  ..............  Unclassifiable/
                                                     Attainment
    Lafayette County..............  ..............  Unclassifiable/
                                                     Attainment
    Little River County...........  ..............  Unclassifiable/
                                                     Attainment
    Miller County.................  ..............  Unclassifiable/
                                                     Attainment
    Sevier County.................  ..............  Unclassifiable/
                                                     Attainment
Memphis, TN-AR: (AQCR 018
 Metropolitan Memphis Interstate):
    Crittenden County.............  ..............  Unclassifiable/
                                                     Attainment
----------------------------------------------------------------------------------------------------------------
\a\ Includes Indian Country located in each county or area, except as otherwise specified.
\1\ This date is 90 days after January 5, 2005, unless otherwise noted.

                                       Arkansas--2006 24-Hour PM2.5 NAAQS
                                             [Primary and secondary]
----------------------------------------------------------------------------------------------------------------
                                               Designation \a\                         Classification
          Designated area          -----------------------------------------------------------------------------
                                       Date \1\              Type               Date                Type
----------------------------------------------------------------------------------------------------------------
AQCR 016 Central Arkansas
 Intrastate:
    Chicot County.................  ..............  Unclassifiable/
                                                     Attainment.
    Clark County..................  ..............  Unclassifiable/
                                                     Attainment.
    Cleveland County..............  ..............  Unclassifiable/
                                                     Attainment.
    Conway County.................  ..............  Unclassifiable/
                                                     Attainment.
    Dallas County.................  ..............  Unclassifiable/
                                                     Attainment.
    Desha County..................  ..............  Unclassifiable/
                                                     Attainment.
    Drew County...................  ..............  Unclassifiable/
                                                     Attainment.
    Faulkner County...............  ..............  Unclassifiable/
                                                     Attainment.
    Garland County................  ..............  Unclassifiable/
                                                     Attainment.
    Grant County..................  ..............  Unclassifiable/
                                                     Attainment.
    Hot Spring County.............  ..............  Unclassifiable/
                                                     Attainment.
    Jefferson County..............  ..............  Unclassifiable/
                                                     Attainment.
    Lincoln County................  ..............  Unclassifiable/
                                                     Attainment.
    Lonoke County.................  ..............  Unclassifiable/
                                                     Attainment.
    Perry County..................  ..............  Unclassifiable/
                                                     Attainment.
    Pope County...................  ..............  Unclassifiable/
                                                     Attainment.
    Pulaski County................  ..............  Unclassifiable/
                                                     Attainment.
    Saline County.................  ..............  Unclassifiable/
                                                     Attainment.
    Yell County...................  ..............  Unclassifiable/
                                                     Attainment.
AQCR 017 Metropolitan Fort Smith
 Interstate:
    Benton County.................  ..............  Unclassifiable/
                                                     Attainment.
    Crawford County...............  ..............  Unclassifiable/
                                                     Attainment.
    Sebastian County..............  ..............  Unclassifiable/
                                                     Attainment.

    Washington County.............  ..............  Unclassifiable/
                                                     Attainment.
AQCR 019 Monroe-El Dorado
 Interstate:
    Ashley County.................  ..............  Unclassifiable/
                                                     Attainment.
    Bradley County................  ..............  Unclassifiable/
                                                     Attainment.
    Calhoun County................  ..............  Unclassifiable/
                                                     Attainment.
    Nevada County.................  ..............  Unclassifiable/
                                                     Attainment.
    Ouachita County...............  ..............  Unclassifiable/
                                                     Attainment.
    Union County..................  ..............  Unclassifiable/
                                                     Attainment.
AQCR 020 Northeast Arkansas
 Intrastate:
    Arkansas County...............  ..............  Unclassifiable/
                                                     Attainment.
    Clay County...................  ..............  Unclassifiable/
                                                     Attainment.
    Craighead County..............  ..............  Unclassifiable/
                                                     Attainment.
    Cross County..................  ..............  Unclassifiable/
                                                     Attainment.
    Greene County.................  ..............  Unclassifiable/
                                                     Attainment.
    Independence County...........  ..............  Unclassifiable/
                                                     Attainment.
    Jackson County................  ..............  Unclassifiable/
                                                     Attainment.
    Lawrence County...............  ..............  Unclassifiable/
                                                     Attainment.
    Lee County....................  ..............  Unclassifiable/
                                                     Attainment.
    Mississippi County............  ..............  Unclassifiable/
                                                     Attainment.
    Monroe County.................  ..............  Unclassifiable/
                                                     Attainment.
    Phillips County...............  ..............  Unclassifiable/
                                                     Attainment.
    Poinsett County...............  ..............  Unclassifiable/
                                                     Attainment.
    Prairie County................  ..............  Unclassifiable/
                                                     Attainment.
    Randolph County...............  ..............  Unclassifiable/
                                                     Attainment.
    St. Francis County............  ..............  Unclassifiable/
                                                     Attainment.
    Sharp County..................  ..............  Unclassifiable/
                                                     Attainment.
    White County..................  ..............  Unclassifiable/
                                                     Attainment.
    Woodruff County...............  ..............  Unclassifiable/
                                                     Attainment.
AQCR 021 Northwest Arkansas
 Intrastate:
    Baxter County.................  ..............  Unclassifiable/
                                                     Attainment.
    Boone County..................  ..............  Unclassifiable/
                                                     Attainment.
    Carroll County................  ..............  Unclassifiable/
                                                     Attainment.
    Cleburne County...............  ..............  Unclassifiable/
                                                     Attainment.
    Franklin County...............  ..............  Unclassifiable/
                                                     Attainment.
    Fulton County.................  ..............  Unclassifiable/
                                                     Attainment.
    Izard County..................  ..............  Unclassifiable/
                                                     Attainment.
    Johnson County................  ..............  Unclassifiable/
                                                     Attainment.
    Logan County..................  ..............  Unclassifiable/
                                                     Attainment.
    Madison County................  ..............  Unclassifiable/
                                                     Attainment.
    Marion County.................  ..............  Unclassifiable/
                                                     Attainment.
    Montgomery County.............  ..............  Unclassifiable/
                                                     Attainment.
    Newton County.................  ..............  Unclassifiable/
                                                     Attainment.
    Pike County...................  ..............  Unclassifiable/
                                                     Attainment.
    Polk County...................  ..............  Unclassifiable/
                                                     Attainment.
    Scott County..................  ..............  Unclassifiable/
                                                     Attainment.
    Searcy County.................  ..............  Unclassifiable/
                                                     Attainment.
    Stone County..................  ..............  Unclassifiable/
                                                     Attainment.
    Van Buren County..............  ..............  Unclassifiable/
                                                     Attainment.
AQCR 022 Shreveport-Texarkana-
 Tyler Interstate:
    Columbia County...............  ..............  Unclassifiable/
                                                     Attainment.
    Hempstead County..............  ..............  Unclassifiable/
                                                     Attainment.
    Howard County.................  ..............  Unclassifiable/
                                                     Attainment.
    Lafayette County..............  ..............  Unclassifiable/
                                                     Attainment.
    Little River County...........  ..............  Unclassifiable/
                                                     Attainment.
    Miller County.................  ..............  Unclassifiable/
                                                     Attainment.
    Sevier County.................  ..............  Unclassifiable/
                                                     Attainment.
    Memphis, TN-AR: (AQCR 018
     Metropolitan Memphis
     Interstate):.
    Crittenden County.............  ..............  Unclassifiable/
                                                     Attainment.
----------------------------------------------------------------------------------------------------------------
\a\ Includes Indian Country located in each county or area, except as otherwise specified.
\1\ This date is 30 days after November 13, 2009, unless otherwise noted.

* * * * *

0
6. Section 81.305 is amended as follows:
0
a. By removing the tables titled ``California--PM2.5 (Annual
NAAQS)'' and ``California--PM2.5 [24-hour NAAQS]''.
0
b. By adding three tables titled ``California--1997 Annual
PM2.5 NAAQS (Primary and Secondary)'' and ``California--1997
24-hour PM2.5

NAAQS (Primary and Secondary)'' and ``California--2006 24-hour
PM2.5 NAAQS (Primary and Secondary)'' before the table
titled ``California--NO2 (1971 Annual Standard)'' .
    The additions read as follows:

Sec.  81.305  California.

* * * * *

                                       California--1997 Annual PM2.5 NAAQS
                                             [Primary and secondary]
----------------------------------------------------------------------------------------------------------------
                                               Designation \a\                         Classification
          Designated area          -----------------------------------------------------------------------------
                                       Date \1\              Type             Date \2\              Type
----------------------------------------------------------------------------------------------------------------
Los Angeles-South Coast Air Basin,
 CA:
    Los Angeles County (part).....  ..............  Nonattainment........  ..............  Moderate
        That portion of Los
         Angeles County which lies
         south and west of a line
         described as follows:
         Beginning at the Los
         Angeles-San Bernardino
         County boundary and
         running west along the
         Township line common to
         Township 3 North and
         Township 2 North, San
         Bernardino Base and
         Meridian; then north
         along the range line
         common to Range 8 West
         and Range 9 West; then
         west along the Township
         line common to Township 4
         North and Township 3
         North; then north along
         the range line common to
         Range 12 West and Range
         13 West to the southeast
         corner of Section 12,
         Township 5 North and
         Range 13 West; then west
         along the south
         boundaries of Sections
         12, 11, 10, 9, 8, and 7,
         Township 5 North and
         Range 13 West to the
         boundary of the Angeles
         National Forest which is
         collinear with the range
         line common to Range 13
         West and Range 14 West;
         then north and west along
         the Angeles National
         Forest boundary to the
         point of intersection
         with the Township line
         common to Township 7
         North and Township 6
         North (point is at the
         northwest corner of
         Section 4 in Township 6
         North and Range 14 West);
         then west along the
         Township line common to
         Township 7 North and
         Township 6 North; then
         north along the range
         line common to Range 15
         West and Range 16 West to
         the southeast corner of
         Section 13, Township 7
         North and Range 16 West;
         then along the south
         boundaries of Sections
         13, 14, 15, 16, 17, and
         18, Township 7 North and
         Range 16 West; then north
         along the range line
         common to Range 16 West
         and Range 17 West to the
         north boundary of the
         Angeles National Forest
         (collinear with the
         Township line common to
         Township 8 North and
         Township 7 North); then
         west and north along the
         Angeles National Forest
         boundary to the point of
         intersection with the
         south boundary of the
         Rancho La Liebre Land
         Grant; then west and
         north along this land
         grant boundary to the Los
         Angeles-Kern County
         boundary.
    Orange County.................  ..............  Nonattainment........  ..............  Moderate.
    Riverside County (part).......  ..............  Nonattainment........  ..............  Moderate.
        That portion of Riverside
         County which lies to the
         west of a line described
         as follows: Beginning at
         the Riverside-San Diego
         County boundary and
         running north along the
         range line common to
         Range 4 East and Range 3
         East, San Bernardino Base
         and Meridian; then east
         along the Township line
         common to Township 8
         South and Township 7
         South; then north along
         the range line common to
         Range 5 East and Range 4
         East; then west along the
         Township line common to
         Township 6 South and
         Township 7 South to the
         southwest corner of
         Section 34, Township 6
         South, Range 4 East; then
         north along the west
         boundaries of Sections
         34, 27, 22, 15, 10, and
         3, Township 6 South,
         Range 4 East; then west
         along the Township line
         common to Township 5
         South and Township 6
         South; then north along
         the range line common to
         Range 4 East and Range 3
         East; then west along the
         south boundaries of
         Sections 13, 14, 15, 16,
         17, and 18, Township 5
         South, Range 3 East; then
         north along the range
         line common to Range 2
         East and Range 3 East; to
         the Riverside-San
         Bernardino County line.
    San Bernardino County (part)..  ..............  Nonattainment........  ..............  Moderate.
        That portion of San
         Bernardino County which
         lies south and west of a
         line described as
         follows: Beginning at the
         San Bernardino-Riverside
         County boundary and
         running north along the
         range line common to
         Range 3 East and Range 2
         East, San Bernardino Base
         and Meridian; then west
         along the Township line
         common to Township 3
         North and Township 2
         North to the San
         Bernardino-Los Angeles
         County boundary.
San Diego, CA:
    San Diego County..............  ..............  Unclassifiable/                        .....................
                                                     Attainment.
San Joaquin Valley, CA:
    Fresno County.................  ..............  Nonattainment........  ..............  Moderate.
    Kern County (part)............  ..............  Nonattainment........  ..............  Moderate.
        That portion of Kern
         County which lies west
         and north of a line
         described as follows:
         Beginning at the Kern-Los
         Angeles County boundary
         and running north and
         east along the northwest
         boundary of the Rancho La
         Libre Land Grant to the
         point of intersection
         with the range line
         common to R. 16 W. and R.
         17 W., San Bernardino
         Base and Meridian; north
         along the range line to
         the point of intersection
         with the Rancho El Tejon
         Land Grant boundary; then
         southeast, northeast, and
         northwest along the
         boundary of the Rancho El
         Tejon Land Grant to the
         northwest corner of S. 3,
         T. 11 N., R. 17 W.; then
         west 1.2 miles; then
         north to the Rancho El
         Tejon Land Grant
         boundary; then northwest
         along the Rancho El Tejon
         line to the southeast
         corner of S. 34, T. 32
         S., R. 30 E., Mount
         Diablo Base and Meridian;
         then north to the
         northwest corner of S.
         35, T. 31 S., R. 30 E.;
         then northeast along the
         boundary of the Rancho El
         Tejon Land Grant to the
         southwest corner of S.
         18, T. 31 S., R. 31 E.;
         then east to the
         southeast corner of S.
         13, T. 31 S., R. 31 E.;
         then north along the
         range line common to R.
         31 E. and R. 32 E., Mount
         Diablo Base and Meridian,
         to the northwest corner
         of S. 6, T. 29 S., R. 32
         E.; then east to the
         southwest corner of S.
         31, T. 28 S., R. 32 E.;
         then north along the
         range line common to R.
         31 E. and R. 32 E. to the
         northwest corner of S. 6,
         T. 28 S., R. 32 E., then
         west to the southeast
         corner of S. 36, T. 27
         S., R. 31 E., then north
         along the range line
         common to R. 31 E. and R.
         32 E. to the Kern-Tulare
         County boundary.
    Kings County..................  ..............  Nonattainment........  ..............  Moderate.
    Madera County.................  ..............  Nonattainment........  ..............  Moderate.
    Merced County.................  ..............  Nonattainment........  ..............  Moderate.
    San Joaquin County............  ..............  Nonattainment........  ..............  Moderate.
    Stanislaus County.............  ..............  Nonattainment........  ..............  Moderate.
    Tulare County.................  ..............  Nonattainment........  ..............  Moderate.
North Coast Air Basin:
    Del Norte County..............  ..............  Unclassifiable/
                                                     Attainment>.
    Humboldt County...............  ..............  Unclassifiable/
                                                     Attainment.

    Mendocino County..............  ..............  Unclassifiable/
                                                     Attainment.
    Sonoma County (part)..........  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Sonoma
         county which lies north
         and west of a line
         described as follows:
         Beginning at the south-
         easterly corner of the
         Rancho Estero Americano,
         being on the boundary
         line between Marin and
         Sonoma Counties,
         California; thence
         running northerly along
         the easterly boundary
         line of said Rancho
         Estero Americano to the
         northeasterly corner
         thereof, being an angle
         corner in the westerly
         boundary line of Rancho
         Canada de Jonive, thence
         running along said
         boundary of Rancho Canada
         de Jonive westerly;
         northerly and easterly to
         its intersection with the
         easterly line of Graton
         Road; thence running
         along the easterly and
         southerly line of Graton
         Road northerly and
         easterly to its
         intersection with the
         easterly line of Sullivan
         Road; thence running
         northerly along said
         easterly line of Sullivan
         Road to the southerly
         line of Green Valley
         Road; thence running
         easterly along the said
         southerly line of Green
         Valley Road and easterly
         along the southerly line
         of State Highway 116, to
         the westerly and
         northerly line of Vine
         Hill Road; thence running
         along the westerly and
         northerly line of Vine
         Hill Road, northerly and
         easterly to its
         intersection with the
         westerly line of Laguna
         Road; thence running
         northerly along the
         westerly line of Laguna
         Road and the northerly
         projection thereof to the
         northerly line of Trenton
         Road; thence running
         westerly along the
         northerly line of said
         Trenton Road to the
         easterly line of Trenton-
         Healdsburg Road to the
         easterly line of Eastside
         Road: thence running
         northerly along said
         easterly line of Eastside
         Road to its intersection
         with the southerly line
         of Rancho Sotoyome;
         thence running easterly
         along said southerly line
         of Rancho Sotoyome to its
         intersection with the
         Township line common to
         Townships 8 and 9 north,
         Mt. Diablo Base and
         Meridian; thence running
         easterly along said
         Township line to its
         intersection with the
         boundary line between
         Sonoma and Napa Counties,
         State of California.
    Trinity County................          3/7/11  Unclassifiable/
                                                     Attainment.
Northeast Plateau Air Basin:
    Lassen County.................          3/7/11  Unclassifiable/
                                                     Attainment.
    Modoc County..................          3/7/11  Unclassifiable/
                                                     Attainment.
    Siskiyou County...............          3/7/11  Unclassifiable/
                                                     Attainment.
Lake County Air Basin:
    Lake County...................  ..............  Unclassifiable/
                                                     Attainment.
Upper Sacramento Valley Region:
    Butte County (remainder)......          3/7/11  Unclassifiable/
                                                     Attainment.
    Colusa County.................  ..............  Unclassifiable/
                                                     Attainment.
    Glenn County..................  ..............  Unclassifiable/
                                                     Attainment.
    Shasta County.................          3/7/11  Unclassifiable/
                                                     Attainment.
    Sutter County (part)..........  ..............  Unclassifiable/
                                                     Attainment.
    Tehama County.................          3/7/11  Unclassifiable/
                                                     Attainment.
    Yuba County (remainder).......          3/7/11  Unclassifiable/
                                                     Attainment.
Sacramento Metropolitan Region:
    El Dorado County (part).......  ..............  Unclassifiable/
                                                     Attainment.
        All portions of the county
         except that portion of El
         Dorado County within the
         drainage area naturally
         tributary to Lake Tahoe
         including said Lake.
    Placer County (part)..........  ..............  Unclassifiable/
                                                     Attainment.
        All portions of the county
         except that portion of
         Placer County within the
         drainage area naturally
         tributary to Lake Tahoe
         including said Lake, plus
         that area in the vicinity
         of the head of the
         Truckee River described
         as follows: Commencing at
         the point common to the
         aforementioned drainage
         area crestline and the
         line common to Townships
         15 North and 16 North,
         Mount Diablo Base and
         Meridian, and following
         that line in a westerly
         direction to the
         northwest corner of
         Section 3, Township 15
         North, Range 16 East,
         Mount Diablo Base and
         Meridian, thence south
         along the west line of
         Sections 3 and 10,
         Township 15 North, Range
         16 East, Mount Diablo
         Base and Meridian, to the
         intersection with the
         said drainage area
         crestline, thence
         following the said
         drainage area boundary in
         a southeasterly, then
         northeasterly direction
         to and along the Lake
         Tahoe Dam, thence
         following the said
         drainage area crestline
         in a northeasterly, then
         northwesterly direction
         to the point of beginning.
    Sacramento County.............  ..............  Unclassifiable/
                                                     Attainment.
    Solano County (part)..........  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Solano
         County which lies north
         and east of a line
         described as follows:
         Beginning at the
         intersection of the
         westerly boundary of
         Solano County and the 1/4
         section line running east
         and west through the
         center of Section 34;
         Township 6 North, Range 2
         West, Mount Diablo Base
         and Meridian, thence east
         along said 1/4 section
         line to the east boundary
         of Section 36, Township 6
         North, Range 2 West,
         thence south 1/2 mile and
         east 2.0 miles, more or
         less, along the west and
         south boundary of Los
         Putos Rancho to the
         northwest corner of
         Section 4, Township 5
         North, Range 1 West,
         thence east along a line
         common to Township 5
         North and Township 6
         North to the northeast
         corner of Section 3,
         Township 5 North, Range 1
         East, thence south along
         section lines to the
         southeast corner of
         Section 10, Township 3
         North, Range 1 East,
         thence east along section
         lines to the south 1/4
         corner of Section 8,
         Township 3 North, Range 2
         East, thence east to the
         boundary between Solano
         and Sacramento Counties.
    Sutter County (part)..........  ..............  Unclassifiable/
                                                     Attainment.
        That portion south of a
         line connecting the
         northern border of Yolo
         County to the southwest
         tip of Yuba County and
         continuing along the
         southern Yuba County
         border to Placer County.
    Yolo County...................  ..............  Unclassifiable/
                                                     Attainment.
Northern Mountain Counties:
    Nevada County.................  ..............  Unclassifiable/
                                                     Attainment..
    Plumas County.................          3/7/11  Unclassifiable/
                                                     Attainment.
    Sierra County.................          3/7/11  Unclassifiable/
                                                     Attainment.
Central Mountain Counties:
    Amador County.................  ..............  Unclassifiable/
                                                     Attainment.
    Calaveras County..............  ..............  Unclassifiable/
                                                     Attainment.
Southern Mountain Counties:

    Mariposa County...............  ..............  Unclassifiable/
                                                     Attainment.
    Tuolumne County...............  ..............  Unclassifiable/
                                                     Attainment.
Lake Tahoe Air Basin:
    El Dorado County (part).......  ..............  Unclassifiable/
                                                     Attainment.
        That portion of El Dorado
         County within the
         drainage area naturally
         tributary to Lake Tahoe
         including said Lake..
    Placer County (part)..........  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Placer
         County within the
         drainage area naturally
         tributary to Lake Tahoe
         including said Lake, plus
         that area in the vicinity
         of the head of the
         Truckee River described
         as follows: commencing at
         the point common to the
         aforementioned drainage
         area crestline and the
         line common to Townships
         15 North and 16 North,
         Mount Diablo Base and
         Meridian, and following
         that line in a westerly
         direction to the
         northwest corner of
         Section 3, Township 15
         North, Range 16 East,
         Mount Diablo Base and
         Meridian, thence south
         along the west line of
         Sections 3 and 10,
         Township 15 North, Range
         16 East, Mount Diablo
         Base and Meridian, to the
         intersection with the
         said drainage area
         crestline, thence
         following the said
         drainage area boundary in
         a southeasterly, then
         northeasterly direction
         to and along the Lake
         Tahoe Dam, thence
         following the said
         drainage area crestline
         in a northeasterly, then
         northwesterly direction
         to the point of beginning.
San Francisco Bay Area Air Basin:
    Alameda County................  ..............  Unclassifiable/
                                                     Attainment.
    Contra Costa County...........  ..............  Unclassifiable/
                                                     Attainment.
    Marin County..................  ..............  Unclassifiable/
                                                     Attainment.
    Napa County...................  ..............  Unclassifiable/
                                                     Attainment.
    San Francisco County..........  ..............  Unclassifiable/
                                                     Attainment.
    San Mateo County..............  ..............  Unclassifiable/
                                                     Attainment.
    Santa Clara County............  ..............  Unclassifiable/
                                                     Attainment.
    Solano County (part)..........  ..............  Unclassifiable/
                                                     Attainment.
        Portion of Solano County
         which lies south and west
         of a line described as
         follows: Beginning at the
         intersection of the
         westerly boundary of
         Solano County and the 1/4
         section line running east
         and west through the
         center of Section 34,
         T6N, R2W, M.D.B. & M.,
         thence east along said 1/
         4 section line to the
         east boundary of Section
         36, T6N, R2W, thence
         south 1/2 mile and east
         2.0 miles, more or less,
         along the west and south
         boundary of Los Putos
         Rancho to the northwest
         corner of Section 4, T5N,
         R1W, thence east along a
         line common to T5N and
         T6N to the northeast
         corner of Section 3, T5N,
         R1E, thence south along
         section lines to the
         southeast corner of
         Section 10, T3N, R1E,
         thence east along section
         lines to the south 1/4
         corner of Section 8, T3N,
         R2E, thence east to the
         boundary between Solano
         and Sacramento Counties.
    Sonoma County (part)..........  ..............  Unclassifiable/
                                                     Attainment..
        That portion of Sonoma
         County which lies south
         and east of a line
         described as follows:
         Beginning at the
         southeasterly corner of
         the Rancho Estero
         Americano, being on the
         boundary line between
         Marin and Sonoma
         Counties, California;
         thence running northerly
         along the easterly
         boundary line of said
         Rancho Estero Americano
         to the northeasterly
         corner thereof, being an
         angle corner in the
         westerly boundary line of
         Rancho Canada de Jonive;
         thence running along said
         boundary of Rancho Canada
         de Jonive westerly,
         northerly and easterly to
         its intersection with the
         easterly line of Graton
         Road; thence running
         along the easterly and
         southerly line of Graton
         Road, northerly and
         easterly to its
         intersection with the
         easterly line of Sullivan
         Road; thence running
         northerly along said
         easterly line of Sullivan
         Road to the southerly
         line of Green Valley
         Road; thence running
         easterly along the said
         southerly line of Green
         Valley Road and easterly
         along the southerly line
         of State Highway 116, to
         the westerly line of Vine
         Hill Road; thence running
         along the westerly and
         northerly line of Vine
         Hill Road, northerly and
         easterly to its
         intersection with the
         westerly line of Laguna
         Road; thence running
         northerly along the
         westerly line of Laguna
         Road and the northerly
         projection thereof to the
         northerly line of Trenton
         Road; thence running
         westerly along the
         northerly line of said
         Trenton Road to the
         easterly line of Trenton-
         Healdsburg Road; thence
         running northerly along
         said easterly line of
         Trenton-Healdsburg Road
         to the easterly line of
         Eastside Road; thence
         running northerly along
         said easterly line of
         Eastside Road to its
         intersection with the
         southerly line of Rancho
         Sotoyome; thence running
         easterly along said
         southerly line of Rancho
         Sotoyome to its
         intersection with the
         Township line common to
         Townships 8 and 9 North,
         M.D.M.; thence running
         easterly along said
         township line to its
         intersection with the
         boundary line between
         Sonoma and Napa Counties.
North Central Coast Air Basin:
    Monterey County...............  ..............  Unclassifiable/
                                                     Attainment.
    San Benito County.............  ..............  Unclassifiable/
                                                     Attainment.
    Santa Cruz County.............  ..............  Unclassifiable/
                                                     Attainment.
San Luis Obispo County:
    San Luis Obispo County........  ..............  Unclassifiable/
                                                     Attainment.
Santa Barbara County:
    Santa Barbara County (part)...  ..............  Unclassifiable/
                                                     Attainment.
        Excluding San Miguel,
         Santa Rosa, Santa Cruz,
         and Santa Barbara Islands
    Santa Barbara County (part)...  ..............  Unclassifiable/
                                                     Attainment.
        San Miguel, Santa Rosa,
         Santa Cruz, and Santa
         Barbara Islands.
Ventura County:
    Ventura County (part).........  ..............  Unclassifiable/
                                                     Attainment.
        Excluding Anacapa and San
         Nicolas Islands.
    Ventura County (part).........  ..............  Unclassifiable/
                                                     Attainment.
        Anacapa and San Nicolas
         Islands.
Great Basin Valleys Air Basin:
    Alpine County.................  ..............  Unclassifiable/
                                                     Attainment.
    Inyo County (part)............  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Inyo
         County that lies outside
         Hydrologic Unit Number
         18090205.
    Mono County...................  ..............  Unclassifiable/
                                                     Attainment.
Coso Junction:
    Inyo County (part)............  ..............  Unclassifiable/
                                                     Attainment.

        That portion of Inyo
         County that lies inside
         Hydrologic Unit Number
         18090205.
Eastern Kern County:
    Kern County (part)............  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Kern
         County (with the
         exception of that portion
         in Hydrologic Unit Number
         18090205--the Indian
         Wells Valley) east and
         south of a line described
         as follows: Beginning at
         the Kern--Los Angeles
         County boundary and
         running north and east
         along the northwest
         boundary of the Rancho La
         Liebre Land Grant to the
         point of intersection
         with the range line
         common to Range 16 West
         and Range 17 West, San
         Bernardino Base and
         Meridian; north along the
         range line to the point
         of intersection with the
         Rancho El Tejon Land
         Grant boundary; then
         southeast, northeast, and
         northwest along the
         boundary of the Rancho El
         Tejon Grant to the
         northwest corner of
         Section 3, Township 11
         North, Range 17 West;
         then west 1.2 miles; then
         north to the Rancho El
         Tejon Land Grant
         boundary; then northwest
         along the Rancho El Tejon
         line to the southeast
         corner of Section 34,
         Township 32 South, Range
         30 East, Mount Diablo
         Base and Meridian; then
         north to the northwest
         corner of Section 35,
         Township 31 South, Range
         30 East; then northeast
         along the boundary of the
         Rancho El Tejon Land
         Grant to the southwest
         corner of Section 18,
         Township 31 South, Range
         31 East; then east to the
         southeast corner of
         Section 13, Township 31
         South, Range 31 East;
         then north along the
         range line common to
         Range 31 East and Range
         32 East, Mount Diablo
         Base and Meridian, to the
         northwest corner of
         Section 6, Township 29
         South, Range 32 East;
         then east to the
         southwest corner of
         Section 31, Township 28
         South, Range 32 East;
         then north along the
         range line common to
         Range 31 East and Range
         32 East to the northwest
         corner of Section 6,
         Township 28 South, Range
         32 East, then west to the
         southeast corner of
         Section 36, Township 27
         South, Range 31 East,
         then north along the
         range line common to
         Range 31 East and Range
         32 East to the Kern-
         Tulare County boundary
Indian Wells Valley:
    Kern County (part)............  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Kern
         County that lies inside
         Hydrologic Unit Number
         18090205.
Western Mojave Desert and Antelope
 Valley:
    Los Angeles County (part).....  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Los
         Angeles County which lies
         north and east of a line
         described as follows:
         Beginning at the Los
         Angeles--San Bernardino
         County boundary and
         running west along the
         Township line common to
         Township 3 North and
         Township 2 North, San
         Bernardino Base and
         Meridian; then north
         along the range line
         common to Range 8 West
         and Range 9 West; then
         west along the Township
         line common to Township 4
         North and Township 3
         North; then north along
         the range line common to
         Range 12 West and Range
         13 West to the southeast
         corner of Section 12,
         Township 5 North and
         Range 13 West; then west
         along the south
         boundaries of Sections
         12, 11, 10, 9, 8, and 7,
         Township 5 North and
         Range 13 West to the
         boundary of the Angeles
         National Forest which is
         collinear with the range
         line common to Range 13
         West and Range 14 West;
         then north and west along
         the Angeles National
         Forest boundary to the
         point of intersection
         with the Township line
         common to Township 7
         North and Township 6
         North (point is at the
         northwest corner of
         Section 4 in Township 6
         North and Range 14 West);
         then west along the
         Township line common to
         Township 7 North and
         Township 6 North; then
         north along the range
         line common to Range 15
         West and Range 16 West to
         the southeast corner of
         Section 13, Township 7
         North and Range 16 West;
         then along the south
         boundaries of Sections
         13, 14, 15, 16, 17, and
         18, Township 7 North and
         Range 16 West; then north
         along the range line
         common to Range 16 West
         and Range 17 West to the
         north boundary of the
         Angeles National Forest
         (collinear with the
         Township line common to
         Township 8 North and
         Township 7 North); then
         west and north along the
         Angeles National Forest
         boundary to the point of
         intersection with the
         south boundary of the
         Rancho La Liebre Land
         Grant; then west and
         north along this land
         grant boundary to the Los
         Angeles-Kern County
         boundary.
Trona:
    San Bernardino County (part)..  ..............  Unclassifiable/
                                                     Attainment.
        That portion of San
         Bernardino County that
         lies inside Hydrologic
         Unit Number 18090205.
Coachella Valley:
    Riverside County (part).......  ..............  Unclassifiable/
                                                     Attainment.

        That portion of Riverside
         County which lies to the
         east of a line described
         as follows: Beginning at
         the Riverside--San Diego
         County boundary and
         running north along the
         range line common to
         Range 4 East and Range 3
         East, San Bernardino Base
         and Meridian; then east
         along the Township line
         common to Township 8
         South and Township 7
         South; then north along
         the range line common to
         Range 5 East and Range 4
         East; then west along the
         Township line common to
         Township 6 South and
         Township 7 South to the
         southwest corner of
         Section 34, Township 6
         South, Range 4 East; then
         north along the west
         boundaries of Sections
         34, 27, 22, 15, 10, and
         3, Township 6 South,
         Range 4 East; then west
         along the Township line
         common to Township 5
         South and Township 6
         South; then north along
         the range line common to
         Range 4 East and Range 3
         East; then west along the
         south boundaries of
         Sections 13, 14, 15, 16,
         17, and 18, Township 5
         South, Range 3 East; then
         north along the range
         line common to Range 2
         East and Range 3 East;,
         to the Riverside-San
         Bernardino County line:
         And that portion of
         Riverside County which
         lies to the west of a
         line described as
         follows: That segment of
         the southwestern boundary
         line of Hydrologic Unit
         Number 18100100 within
         Riverside County, further
         described as follows:
         Beginning at the
         Riverside-Imperial County
         boundary and running
         north along the range
         line common to Range 17
         East and Range 16 East,
         San Bernardino Base and
         Meridian; then northwest
         along the ridge line of
         the Chuckwalla Mountains,
         through Township 8 South,
         Range 16 East and
         Township 7 South, Range
         16 East, until the Black
         Butte Mountain, elevation
         4504'; then west and
         northwest along the ridge
         line to the southwest
         corner of Township 5
         South, Range 14 East;
         then north along the
         range line common to
         Range 14 East and Range
         13 East; then west and
         northwest along the ridge
         line to Monument
         Mountain, elevation
         4834'; then southwest and
         then northwest along the
         ridge line of the Little
         San Bernardino Mountains
         to Quail Mountain, elev.
         5814'; then northwest
         along the ridge line to
         the Riverside-San
         Bernardino County line.
Far Eastern Riverside and San
 Bernardino Counties:
    San Bernardino County           ..............  Unclassifiable/
     (remainder).                                    Attainment.
    Riverside County (remainder)..  ..............  Unclassifiable/
                                                     Attainment..
Imperial County:
    Imperial County...............  ..............  Unclassifiable/
                                                     Attainment..
----------------------------------------------------------------------------------------------------------------
\a\ Includes Indian Country located in each county or area, except as otherwise specified.
\1\ This date is 90 days after January 5, 2005, unless otherwise noted.
\2\ This date is July 2, 2014, unless otherwise noted.

                                      California--1997 24-Hour PM2.5 NAAQS
                                             [Primary and secondary]
----------------------------------------------------------------------------------------------------------------
                                               Designation \a\                         Classification
          Designated area          -----------------------------------------------------------------------------
                                       Date \1\              Type             Date \2\              Type
----------------------------------------------------------------------------------------------------------------
Chico, CA:
    Butte County (part)...........  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Butte
         County which lies west of
         the line described as
         follows: (Mount Diablo
         Base and Meridian)
         Beginning at the
         intersection of the Butte-
         Yuba county line and the
         township line common to
         T18N R6E and T19N R6E,
         west to the township line
         common to T18N R6E and
         T19N R6E, then north
         along the range line
         common to R5E and R6E,
         then west along the
         township line common to
         T21N and T20N, then north
         along the range line
         common to R4E and R5E,
         then west along the
         township line common to
         T24N and T23N to the
         Butte-Tehama County
         boundary.
Imperial County, CA:
    Imperial County (part)........  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Imperial
         County which lies within
         the line described as
         follows: (San Bernardino
         Base and Meridan)
         Beginning at the
         intersection of the
         United States-Mexico
         border and the southeast
         corner of T17S R11E, then
         north along the range
         line of the eastern edge
         of range R11E, then east
         along the township line
         of the southern edge of
         T12S to the northeast
         corner of T13S R15E, then
         south along the range
         line common to R15E and
         R16E, to the United
         States-Mexico border.
Los Angeles-South Coast Air Basin,
 CA:
    Los Angeles County (part).....  ..............  Nonattainment........  ..............  Moderate.

        That portion of Los
         Angeles County which lies
         south and west of a line
         described as follows:
         Beginning at the Los
         Angeles-San Bernardino
         County boundary and
         running west along the
         Township line common to
         Township 3 North and
         Township 2 North, San
         Bernardino Base and
         Meridian; then North
         along the range line
         common to Range 8 West
         and Range 9 West; then
         west along the Township
         line common to Township 4
         North and Township 3
         North; then north along
         the range line common to
         Range 12 West and Range
         13 West to the southeast
         corner of Section 12,
         Township 5 North and
         Range 13 West; then west
         along the south
         boundaries of Sections
         12, 11, 10, 9, 8, and 7,
         Township 5 North and
         Range 13 West to the
         boundary of the Angeles
         National Forest which is
         collinear with the range
         line common to Range 13
         West and Range 14 West;
         then north and west along
         the Angeles National
         Forest boundary to the
         point of intersection
         with the Township line
         common to Township 7
         North and Township 6
         North (point is at the
         northwest corner of
         Section 4 in Township 6
         North and Range 14 West);
         then west along the
         Township line common to
         Township 7 North and
         Township 6 North; then
         north along the range
         line common to Range 15
         West and Range 16 West to
         the southeast corner of
         Section 13, Township 7
         North and Range 16 West;
         then along the south
         boundaries of Sections
         13, 14, 15, 16, 17 and
         18, Township 7 North and
         Range 16 West; then north
         along the range line
         common to Range 16 West
         and Range 17 West to the
         north boundary of the
         Angeles National Forest
         (collinear with the
         Township line common to
         Township 8 North and
         Township 7 North); then
         west and north along the
         Angeles National Forest
         boundary to the point of
         intersection with the
         south boundary of the
         Rancho La Liebre Land
         Grant; then west and
         north along this land
         grant boundary to the Los
         Angeles-Kern County
         boundary.
    Orange County.................  ..............  Nonattainment........  ..............  Moderate.
    Riverside County (part).......  ..............  Nonattainment........  ..............  Moderate.
        That portion of Riverside
         County which lies to the
         west of a line described
         as follows: Beginning at
         the Riverside-San Diego
         County boundary and
         running north along the
         range line common to
         Range 4 East and Range 3
         East, San Bernardino Base
         and Meridian; then east
         along the Township line
         common to Township 8
         South and Township 7
         South; then north along
         the range line common to
         Range 5 East and Range 4
         East; then west along the
         Township line common to
         Township 6 South and
         Township 7 South to the
         southwest corner of
         Section 34, Township 6
         South, Range 4 East; then
         north along the west
         boundaries of Sections
         34, 27, 22, 15, 10, and
         3, Township 6 South,
         Range 4 East; then west
         along the Township line
         common to Township 5
         South and Township 6
         South; then north along
         the range line common to
         Range 4 East and Range 3
         East; then west along the
         south boundaries of
         Sections 13, 14, 15, 16,
         17, and 18, Township 5
         South, Range 3 East; then
         north along the range
         line common to Range 2
         East and Range 3 East; to
         the Riverside-San
         Bernardino County Line
         (excluding the lands of
         the Santa Rosa Band of
         Cahuilla Mission
         Indians).
    That part of the lands of the   ..............  Nonattainment........  ..............  Moderate.
     Santa Rosa Band of Cahuilla
     Mission Indians which is
     excluded from the Riverside
     County (part) nonattainment
     area.
    San Bernardino County (part)..  ..............  Nonattainment........  ..............  Moderate.
        That portion of San
         Bernardino County which
         lies south and west of a
         line described as
         follows: Beginning at the
         San Bernardino-Riverside
         County boundary and
         running north along the
         range line common to
         Range 3 East and Range 2
         East, San Bernardino Base
         and Meridian; then west
         along the Township line
         common to Township 3
         North and Township 2
         North to the San
         Bernardino-Los Angeles
         County boundary.
Sacramento, CA:
    El Dorado County (part).......  ..............  Unclassifiable/
                                                     Attainment.
        That portion of El Dorado
         County which lies west of
         the line described as
         follows: (Mount Diablo
         Base and Meridian)
         Beginning at the
         intersection of El Dorado-
         Amador county line and
         the township line common
         to townships T8N R10E and
         T8N R11E, then north
         along the range line
         common to ranges R10E and
         R11E, then east along the
         township line common to
         T9N and T8N, then north
         along the range line
         common to ranges R12E and
         R13E, then west along the
         township line common to
         T12N and T11N, then north
         along the range line
         common to ranges R10E and
         R11E, then west along the
         township line common to
         T13N and T12N, then north
         along the range line
         common to ranges R9E and
         R10E, to the El Dorado-
         Placer County boundary.
    Placer County (part)..........  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Placer
         County which lies west of
         the line described as
         follows: (Mount Diablo
         Base and Meridian)
         Beginning at the
         intersection of the
         Placer-El Dorado County
         line and the township
         line common to townships
         T12N R9E and T13N R9E,
         then running west along
         the township line common
         to townships T12N R9E and
         T13N R9E, then north
         along the range line
         common to ranges R8E and
         R9E, to the Placer-Nevada
         County boundary.
    Sacramento County.............  ..............  Unclassifiable/
                                                     Attainment.
    Solano County (part)..........  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Solano
         County which lies north
         and east of a line
         described as follows:
         beginning at the
         intersection of the
         westerly boundary of
         Solano County and the \1/
         4\ section line running
         east and west through the
         center of Section 34;
         Township 6 North, Range 2
         West, Mount Diablo Base
         and Meridian, thence east
         along said \1/4\ section
         line to the east boundary
         of Section 36, Township 6
         North, Range 2 West,
         thence south \1/2\ mile
         and east 2.0 miles, more
         or less, along the west
         and south boundary of Los
         Putos Rancho to the
         northwest corner of
         Section 4, Township 5
         North, Range 1 West,
         thence east along a line
         common to Township 5
         North and Township 6
         North to the northeast
         corner of Section 3,
         Township 5 North, Range 1
         East, thence south along
         section lines to the
         southeast corner of
         Section 10, Township 3
         North, Range 1 East,
         thence east along section
         lines to the south \1/4\
         corner of Section 8,
         Township 3 North, Range 2
         East, thence east to the
         boundary between Solano
         and Sacramento Counties.
    Yolo County (part)............  ..............  Unclassifiable/
                                                     Attainment.

        That portion of Yolo
         County which lies east of
         the line described as
         follows: (Mount Diablo
         Base and Meridian)
         Beginning at the
         intersection of Yolo-
         Solano County boundary
         and the range line of the
         eastern edge of township
         T8N R2W, north along the
         range line of the eastern
         edge of township T8N R2W,
         continuing north along
         the range line common to
         ranges R2W and R1W, to
         the Yolo-Colusa County
         boundary.
San Francisco Bay Area, CA:
    Alameda County................  ..............  Unclassifiable/
                                                     Attainment.
    Contra Costa County...........  ..............  Unclassifiable/
                                                     Attainment.
    Marin County..................  ..............  Unclassifiable/
                                                     Attainment.
    Napa County...................  ..............  Unclassifiable/
                                                     Attainment.
    San Francisco County..........  ..............  Unclassifiable/
                                                     Attainment.
    San Mateo County..............  ..............  Unclassifiable/
                                                     Attainment.
    Santa Clara County............  ..............  Unclassifiable/
                                                     Attainment.
    Solano County (part)..........  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Solano
         County which lies south
         and west of a line
         described as follows:
         Beginning at the
         intersection of the
         westerly boundary of
         Solano County and the \1/
         4\ section line running
         east and west through the
         center of Section 34,
         Township 6 North, Range 2
         West, Mount Diablo Base
         and Meridian, thence east
         along said \1/4\ section
         line to the east boundary
         of Section 36, Township 6
         North, Range 2 West,
         thence south \1/2\ mile
         and east 2.0 miles, more
         or less, along the west
         and south boundary of Los
         Putos Rancho to the
         northwest corner of
         Section 4, Township 5
         North, Range 1 West
         thence east along a line
         common to T5N and T6N to
         the northeast corner of
         Section 3, T5N, R1E,
         thence south along
         section lines to the
         southeast corner of
         Section 10, T3N, R1E,
         thence east along section
         lines to the south \1/4\
         corner of Section 8, T3N,
         R2E, thence east to the
         boundary between Solano
         and Sacramento Counties.
    Sonoma County (part)..........  ..............  Unclassifiable/
                                                     Attainment..
        That portion of Sonoma
         County which lies south
         and east of a line
         described as follows:
         Beginning at the
         southeasterly corner of
         the Rancho Estero
         Americano, being on the
         boundary line between
         Marin and Sonoma
         Counties, California;
         thence running northerly
         along the easterly
         boundary line of said
         Rancho Estero Americano
         to the northeasterly
         corner thereof, being an
         angle corner in the
         westerly boundary line of
         Rancho Canada de Jonive;
         thence running along said
         boundary of Rancho Canada
         de Jonive westerly,
         northerly and easterly to
         its intersection with the
         easterly line of Graton
         Road; thence running
         along the easterly and
         southerly line of Graton
         Road, northerly and
         easterly to its
         intersection with the
         easterly line of Sullivan
         Road; thence running
         northerly along said
         easterly line of Sullivan
         Road to the southerly
         line of Green Valley
         Road; thence running
         easterly along the said
         southerly line of Green
         Valley Road and easterly
         along the southerly line
         of State Highway 116, to
         the westerly line of Vine
         Hill Road; thence running
         along the westerly and
         northerly line of Vine
         Hill Road, northerly and
         easterly to its
         intersection with the
         westerly line of Laguna
         Road; thence running
         northerly along the
         westerly line of Laguna
         Road and the northerly
         projection thereof to the
         northerly line of Trenton
         Road; thence running
         westerly along the
         northerly line of said
         Trenton Road to the
         easterly line of Trenton-
         Healdsburg Road; thence
         running northerly along
         said easterly line of
         Trenton-Healdsburg Road
         to the easterly line of
         Eastside Road; thence
         running northerly along
         said easterly line of
         Eastside Road to its
         intersection with the
         southerly line of Rancho
         Sotoyome; thence running
         easterly along said
         southerly line of Rancho
         Sotoyome to its
         intersection with the
         Township line common to
         Townships 8 and 9 North,
         M.D.M.; thence running
         easterly along said
         township line to its
         intersection with the
         boundary line between
         Sonoma and Napa Counties.
San Joaquin Valley, CA:
    Fresno County.................  ..............  Nonattainment........  ..............  Moderate.
    Kern County (part)............  ..............  Nonattainment........  ..............  Moderate.
        That portion of Kern
         County which lies west
         and north of a line
         described as follows:
         Beginning at the Kern-Los
         Angeles County boundary
         and running north and
         east along the northwest
         boundary of the Rancho La
         Liebre Land Grant to the
         point of intersection
         with the range line
         common to R. 16 W. and R.
         17 W., San Bernardino
         Base and Meridian; north
         along the range line to
         the point of intersection
         with the Rancho El Tejon
         Land Grant boundary; then
         southeast, northeast, and
         northwest along the
         boundary of the Rancho El
         Tejon Land Grant to the
         northwest corner of Sec.
         3, T11N, R17W; then west
         1.2 miles; then north to
         the Rancho El Tejon Land
         Grant boundary; then
         northwest along the
         Rancho El Tejon line to
         the southeast corner of
         Sec. 34, T32S, R30E Mount
         Diablo Base And Meridian;
         then north to the
         northwest corner of Sec.
         35, T31S, R30E; then
         Northeast along the
         boundary of the Rancho El
         Tejon Land Grant to the
         southwest corner of Sec.
         18, T. 31 S., R. 31 E.;
         then east to the
         southeast corner of Sec.
         13, T. 31 S., R. 31 E.;
         then north along the
         range line common to R.
         31 E. and R. 32 E., Mount
         Diablo Base and Meridian,
         to the northwest corner
         of Sec. 6, T. 29 S., R.
         32 E.; then east to the
         southwest corner of Sec.
         31, T. 28 S., R. 32 E.;
         then north along the
         range line common to R.
         31 E. and R. 32 E. to the
         northwest corner of Sec.
         6, T. 28 S., R. 32 E.,
         then west to the
         southeast corner of Sec.
         36, T. 27 S., R. 31 E.,
         then north along the
         range line common to R.
         31 E. and R. 32 E. to the
         Kern-Tulare County
         boundary.
    Kings County..................  ..............  Nonattainment........  ..............  Moderate.
    Madera County.................  ..............  Nonattainment........  ..............  Moderate.
    Merced County.................  ..............  Nonattainment........  ..............  Moderate.
    San Joaquin County............  ..............  Nonattainment........  ..............  Moderate.
    Stanislaus County.............  ..............  Nonattainment........  ..............  Moderate.
    Tulare County.................  ..............  Nonattainment........  ..............  Moderate.
Yuba City-Marysville, CA:
    Sutter County.................  ..............  Unclassifiable/
                                                     Attainment.
    Yuba County (part)............  ..............  Unclassifiable/
                                                     Attainment.

        That portion of Yuba
         County which lies west of
         the line described as
         follows: (Mount Diablo
         Base and Meridian)
         Beginning at the
         intersection of the Yuba-
         Nevada county line and
         the range line common to
         ranges R7E and R8E, north
         to the southeast corner
         of township T18N R7E,
         then west along the
         township line common to
         T17N and T18N, then north
         along the range line
         common to ranges R6E and
         R7E, then west along the
         township line common to
         T19N and T18N to the Yuba-
         Butte County boundary.
North Coast Air Basin:
    Del Norte County..............  ..............  Unclassifiable/
                                                     Attainment.
    Humboldt County...............  ..............  Unclassifiable/
                                                     Attainment.
    Mendocino County..............  ..............  Unclassifiable/
                                                     Attainment.
    Sonoma County (part)..........  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Sonoma
         County which lies north
         and west of a line
         described as follows:
         Beginning at the
         southeasterly corner of
         the Rancho Estero
         Americano, being on the
         boundary line between
         Marin and Sonoma
         Counties, California;
         thence running northerly
         along the easterly
         boundary line of said
         Rancho Estero Americano
         to the northeasterly
         corner thereof, being an
         angle corner in the
         westerly boundary line of
         Rancho Canada de Jonive,
         thence running along said
         boundary of Rancho Canada
         de Jonive westerly;
         northerly and easterly to
         its intersection with the
         easterly line of Graton
         Road; thence running
         along the easterly and
         southerly line of Graton
         Road northerly and
         easterly to its
         intersection with the
         easterly line of Sullivan
         Road; thence running
         northerly along said
         easterly line of Sullivan
         Road to the southerly
         line of Green Valley
         Road; thence running
         easterly along the said
         southerly line of Green
         Valley Road and easterly
         along the southerly line
         of State Highway 116, to
         the westerly and
         northerly line of Vine
         Hill Road; thence running
         along the westerly and
         northerly line of Vine
         Hill Road, northerly and
         easterly to its
         intersection with the
         westerly line of Laguna
         Road; thence running
         northerly along the
         westerly line of Laguna
         Road and the northerly
         projection thereof to the
         northerly line of Trenton
         Road; thence running
         westerly along the
         northerly line of said
         Trenton Road to the
         easterly line of Trenton-
         Healdsburg Road to the
         easterly line of Eastside
         Road: thence running
         northerly along said
         easterly line of Eastside
         Road to its intersection
         with the southerly line
         of Rancho Sotoyome;
         thence running easterly
         along said southerly line
         of Rancho Sotoyome to its
         intersection with the
         Township line common to
         Townships 8 and 9 north,
         Mt. Diablo Base and
         Meridian; thence running
         easterly along said
         Township line to its
         intersection with the
         boundary line between
         Sonoma and Napa Counties,
         State of California.
    Trinity County................  ..............  Unclassifiable/
                                                     Attainment.
Northeast Plateau Air Basin:
    Lassen County.................  ..............  Unclassifiable/
                                                     Attainment.
    Modoc County..................  ..............  Unclassifiable/
                                                     Attainment..
    Siskiyou County...............  ..............  Unclassifiable/
                                                     Attainment.
Lake County Air Basin:
    Lake County...................  ..............  Unclassifiable/
                                                     Attainment.
Upper Sacramento Valley Region:
    Butte County (remainder)......  ..............  Unclassifiable/
                                                     Attainment.
    Colusa County.................  ..............  Unclassifiable/
                                                     Attainment.
    Glenn County..................  ..............  Unclassifiable/
                                                     Attainment.
    Shasta County.................  ..............  Unclassifiable/
                                                     Attainment.
    Tehama County.................  ..............  Unclassifiable/
                                                     Attainment.
    Yuba County (remainder).......  ..............  Unclassifiable/
                                                     Attainment.
Sacramento Metropolitan Region:
    Yolo County (remainder).......  ..............  Unclassifiable/
                                                     Attainment.
Northern Mountain Counties:
    Nevada County.................  ..............  Unclassifiable/
                                                     Attainment.
    Plumas County.................  ..............  Unclassifiable/
                                                     Attainment.
    Sierra County.................  ..............  Unclassifiable/
                                                     Attainment.
Central Mountain Counties:
    Amador County.................  ..............  Unclassifiable/
                                                     Attainment.
    Calaveras County..............  ..............  Unclassifiable/
                                                     Attainment.
Southern Mountain Counties:
    Mariposa County...............  ..............  Unclassifiable/
                                                     Attainment.
    Tuolumne County...............  ..............  Unclassifiable/
                                                     Attainment.
Lake Tahoe Air Basin:
    El Dorado County (remainder)..  ..............  Unclassifiable/
                                                     Attainment.
    Placer County (remainder).....  ..............  Unclassifiable/
                                                     Attainment.
North Central Coast Air Basin:
    Monterey County...............  ..............  Unclassifiable/
                                                     Attainment.
    San Benito County.............  ..............  Unclassifiable/
                                                     Attainment.
    Santa Cruz County.............  ..............  Unclassifiable/
                                                     Attainment.
San Luis Obispo County:
    San Luis Obispo County........  ..............  Unclassifiable/
                                                     Attainment.
Santa Barbara County:
    Santa Barbara County (part)...  ..............  Unclassifiable/
                                                     Attainment.
        Excluding San Miguel,
         Santa Rosa, Santa Cruz
         and Santa Barbara Islands.
    Santa Barbara County (part)...  ..............  Unclassifiable/
                                                     Attainment.
        San Miguel, Santa Rosa,
         Santa Cruz and Santa
         Barbara Islands.
Ventura County:
    Ventura County (part).........  ..............  Unclassifiable/
                                                     Attainment.
        Excluding Anacapa and San
         Nicolas Islands..
    Ventura County (part).........  ..............  Unclassifiable/
                                                     Attainment.
    Anacapa and San Nicolas
     Islands..
Great Basin Valleys Air Basin:
    Alpine County.................  ..............  Unclassifiable/
                                                     Attainment.
    Inyo County (part)............  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Inyo
         County that Lies outside
         Hydrologic Unit Number
         18090205.
    Mono County...................  ..............  Unclassifiable/
                                                     Attainment.
Coso Junction:
    Inyo County (part)............  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Inyo
         County that lies inside
         Hydrologic Unit Number
         18090205..

Eastern Kern County:
    Kern County (part)............  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Kern
         County (with the
         exception of that portion
         in Hydrologic Unit Number
         18090205--the Indian
         Wells Valley) east and
         south of a line described
         as follows: Beginning at
         the Kern-Los Angeles
         County boundary and
         running north and east
         along the northwest
         boundary of the Rancho La
         Liebre Land Grant to the
         point of intersection
         with the range line
         common to Range 16 West
         and Range 17 West, San
         Bernardino Base and
         Meridian; north along the
         range line to the point
         of intersection with the
         Rancho El Tejon Land
         Grant boundary; then
         southeast, northeast, and
         northwest along the
         boundary of the Rancho El
         Tejon Grant to the
         northwest corner of
         Section 3, Township 11
         North, Range 17 West;
         then west 1.2 miles; then
         north to the Rancho El
         Tejon Land Grant
         boundary; Then northwest
         Along the Rancho El Tejon
         line to the southeast
         corner of Section 34,
         Township 32 South, Range
         30 East, Mount Diablo
         Base and Meridian; then
         north to the northwest
         corner of Section 35,
         Township 31 South, Range
         30 East; then northeast
         along the boundary of the
         Rancho El Tejon Land
         Grant to the southwest
         corner of Section 18,
         Township 31 South, Range
         31 East; then east to the
         southeast corner of
         Section 13, Township 31
         South, Range 31 East;
         then north along the
         range line common to
         Range 31 East and Range
         32 East, Mount Diablo
         Base and Meridian, to the
         northwest corner of
         Section 6, Township 29
         South, Range 32 East;
         then east to the
         southwest corner of
         Section 31, Township 28
         South, Range 32 East;
         then north along the
         range line common to
         Range 31 East and Range
         32 East to the northwest
         corner of Section 6,
         Township 28 South, Range
         32 East, then west to the
         southeast corner of
         Section 36, Township 27
         South, Range 31 East,
         then north along the
         range line common to
         Range 31 East and Range
         32 East to the Kern-
         Tulare County boundary.
Indian Wells Valley:
    Kern County (part)............  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Kern
         County that lies inside
         Hydrologic Unit Number
         18090205.
Western Mojave Desert and Antelope
 Valley:
    Los Angeles County (part).....  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Los
         Angeles County which lies
         north and east of a line
         described as follows:
         Beginning at the Los
         Angeles-San Bernardino
         County boundary and
         running west along the
         Township line common to
         Township 3 North and
         Township 2 North, San
         Bernardino Base and
         Meridian; then north
         along the range line
         common to Range 8 West
         and Range 9 West; then
         west along the Township
         line common to Township 4
         North and Township 3
         North; then north along
         the range line common to
         Range 12 West and Range
         13 West to the southeast
         corner of Section 12,
         Township 5 North and
         Range 13 West; then west
         along the south
         boundaries of Sections
         12, 11, 10, 9, 8, and 7,
         Township 5 North and
         Range 13 West to the
         boundary of the Angeles
         National Forest which is
         collinear with the range
         line common to Range 13
         West and Range 14 West;
         then north and west along
         the Angeles National
         Forest boundary to the
         point of intersection
         with the Township line
         common to Township 7
         North and Township 6
         North (point is at the
         northwest corner of
         Section 4 in Township 6
         North and Range 14 West);
         then west along the
         Township line common to
         Township 7 North and
         Township 6 North; then
         north along the range
         line common to Range 15
         West and Range 16 West to
         the southeast corner of
         Section 13, Township 7
         North and Range 16 West;
         then along the south
         boundaries of Sections
         13, 14, 15, 16, 17, and
         18, Township 7 North and
         Range 16 West; then north
         along the range line
         common to Range 16 West
         and Range 17 West to the
         north boundary of the
         Angeles National Forest
         (collinear with the
         Township line common to
         Township 8 North and
         Township 7 North); then
         west and north along the
         Angeles National Forest
         boundary to the point of
         intersection with the
         south boundary of the
         Rancho La Liebre Land
         Grant; then west and
         north along this land
         grant boundary to the Los
         Angeles-Kern County
         boundary.
    San Bernardino County (part)..  ..............  Unclassifiable/
                                                     Attainment.
        That portion of San
         Bernardino County (with
         the exception of that
         portion in Hydrologic
         Unit Number 18090205)
         which lies north and east
         of a line described as
         follows: Beginning at the
         San Bernardino-Riverside
         County boundary and
         running north along the
         range line common to
         Range 3 East and Range 2
         East, San Bernardino Base
         and Meridian; then west
         along the Township line
         common to Township 3
         North and Township 2
         North to the San
         Bernardino-Los Angeles
         County boundary; And that
         portion of San Bernardino
         County which lies south
         and west of a line
         described as follows:
         latitude 35 degrees, 10
         minutes north and
         longitude 115 degrees, 45
         minutes west.
Trona:
    San Bernardino County (part)..  ..............  Unclassifiable/
                                                     Attainment.
        That portion of San
         Bernardino County that
         lies inside Hydrologic
         Unit Number 18090205.
Coachella Valley:
    Riverside County (part).......  ..............  Unclassifiable/
                                                     Attainment.

        That portion of Riverside
         County which lies to the
         east of a line described
         as follows: Beginning at
         the Riverside-San Diego
         County boundary and
         running north along the
         range line common to
         Range 4 East and Range 3
         East, San Bernardino Base
         and Meridian; then east
         along the Township line
         common to Township 8
         South and Township 7
         South; then north along
         the range line common to
         Range 5 East and Range 4
         East; then west along the
         Township line common to
         Township 6 South and
         Township 7 South to the
         southwest corner of
         Section 34, Township 6
         South, Range 4 East; then
         north along the west
         boundaries of Sections
         34, 27, 22, 15, 10, and
         3, Township 6 South,
         Range 4 East; then west
         along the Township line
         common to Township 5
         South and Township 6
         South; then north along
         the range line common to
         Range 4 East and Range 3
         East; then west along the
         south boundaries of
         Sections 13, 14, 15, 16,
         17, and 18, Township 5
         South, Range 3 East; then
         North along the range
         line common to Range 2
         East and Range 3 East; to
         the Riverside-San
         Bernardino County line:
         And that portion of
         Riverside County which
         lies to the west of a
         line described as
         follows: That segment of
         the southwestern boundary
         line of Hydrologic Unit
         Number 18100100 within
         Riverside County, further
         described as follows:
         Beginning at the
         Riverside-Imperial County
         boundary and running
         north along the range
         line common to Range 17
         East and Range 16 East,
         San Bernardino Base and
         Meridian; then northwest
         along the ridge line of
         the Chuckwalla Mountains,
         through Township 8 South,
         Range 16 East and
         Township 7 South, Range
         16 East, until the Black
         Butte Mountain, Elevation
         4504'; then west and
         northwest along the ridge
         line to the southwest
         corner of Township 5
         South, Range 14 East;
         then north along the
         range line common to
         Range 14 East and Range
         13 East; then west and
         northwest along the ridge
         line to Monument
         Mountain, elevation
         4834'; then southwest and
         then northwest along the
         ridge line of the Little
         San Bernardino Mountains
         to Quail Mountain, elev.
         5814'; then northwest
         along the ridge line to
         the Riverside-San
         Bernardino County line.
Far Eastern Riverside and San
 Bernardino Counties:
    San Bernardino County           ..............  Unclassifiable/
     (remainder).                                    Attainment..
    Riverside County (remainder)..  ..............  Unclassifiable/
                                                     Attainment..
    Imperial County (remainder)...  ..............  Unclassifiable/
                                                     Attainment.
    San Diego County..............  ..............  Unclassifiable/
                                                     Attainment.
----------------------------------------------------------------------------------------------------------------
\a\ Includes Indian Country located in each county or area, except as otherwise specified.
\1\ This date is 90 days after January 5, 2005, unless otherwise noted.
\2\ This date is July 2, 2014, unless otherwise noted.

                                      California--2006 24-Hour PM2.5 NAAQS
                                             [Primary and secondary]
----------------------------------------------------------------------------------------------------------------
                                               Designation \a\                         Classification
          Designated area          -----------------------------------------------------------------------------
                                       Date \1\              Type             Date \2\              Type
----------------------------------------------------------------------------------------------------------------
Chico, CA:
    Butte County (part)...........  ..............  Nonattainment........  ..............  Moderate.
        That portion of Butte
         County which lies west of
         the line described as
         follows: (Mount Diablo
         Base and Meridian)
         Beginning at the
         intersection of the Butte-
         Yuba county line and the
         township line common to
         T18N R6E and T19N R6E,
         west to the township line
         common to T18N R6E and
         T19N R6E, then north
         along the range line
         common to R5E and R6E,
         then west along the
         township line common to
         T21N and T20N, then north
         along the range line
         common to R4E and R5E,
         then west along the
         township line common to
         T24N and T23N to the
         Butte-Tehama County
         boundary.
Imperial County, CA:
    Imperial County (part)........  ..............  Nonattainment........  ..............  Moderate.
        That portion of Imperial
         County which lies within
         the line described as
         follows: (San Bernardino
         Base and Meridian)
         Beginning at the
         intersection of the
         United States-Mexico
         border and the southeast
         corner of T17S R11E, then
         north along the range
         line of the eastern edge
         of range R11E, then east
         along the township line
         of the southern edge of
         T12S to the northeast
         corner of T13S R15E, then
         south along the range
         line common to R15E and
         R16E, to the United
         States-Mexico border.
Los Angeles-South Coast Air Basin,
 CA:
    Los Angeles County (part).....  ..............  Nonattainment........  ..............  Moderate.

        That portion of Los
         Angeles County which lies
         south and west of a line
         described as follows:
         Beginning at the Los
         Angeles-San Bernardino
         County boundary and
         running west along the
         Township line common to
         Township 3 North and
         Township 2 North, San
         Bernardino Base and
         Meridian; then North
         along the range line
         common to Range 8 West
         and Range 9 West; then
         west along the Township
         line common to Township 4
         North and Township 3
         North; then north along
         the range line common to
         Range 12 West and Range
         13 West to the southeast
         corner of Section 12,
         Township 5 North and
         Range 13 West; then west
         along the south
         boundaries of Sections
         12, 11, 10, 9, 8, and 7,
         Township 5 North and
         Range 13 West to the
         boundary of the Angeles
         National Forest which is
         collinear with the range
         line common to Range 13
         West and Range 14 West;
         then north and west along
         the Angeles National
         Forest boundary to the
         point of intersection
         with the Township line
         common to Township 7
         North and Township 6
         North (point is at the
         northwest corner of
         Section 4 in Township 6
         North and Range 14 West);
         then west along the
         Township line common to
         Township 7 North and
         Township 6 North; then
         north along the range
         line common to Range 15
         West and Range 16 West to
         the southeast corner of
         Section 13, Township 7
         North and Range 16 West;
         then along the south
         boundaries of Sections
         13, 14, 15, 16, 17 and
         18, Township 7 North and
         Range 16 West; then north
         along the range line
         common to Range 16 West
         and Range 17 West to the
         north boundary of the
         Angeles National Forest
         (collinear with the
         Township line common to
         Township 8 North and
         Township 7 North); then
         west and north along the
         Angeles National Forest
         boundary to the point of
         intersection with the
         south boundary of the
         Rancho La Liebre Land
         Grant; then west and
         north along this land
         grant boundary to the Los
         Angeles-Kern County
         boundary.
    Orange County.................  ..............  Nonattainment........  ..............  Moderate.
    Riverside County (part).......  ..............  Nonattainment........  ..............  Moderate.
        That portion of Riverside
         County which lies to the
         west of a line described
         as follows: Beginning at
         the Riverside-San Diego
         County boundary and
         running north along the
         range line common to
         Range 4 East and Range 3
         East, San Bernardino Base
         and Meridian; then east
         along the Township line
         common to Township 8
         South and Township 7
         South; then north along
         the range line common to
         Range 5 East and Range 4
         East; then west along the
         Township line common to
         Township 6 South and
         Township 7 South to the
         southwest corner of
         Section 34, Township 6
         South, Range 4 East; then
         north along the west
         boundaries of Sections
         34, 27, 22, 15, 10, and
         3, Township 6 South,
         Range 4 East; then west
         along the Township line
         common to Township 5
         South and Township 6
         South; then north along
         the range line common to
         Range 4 East and Range 3
         East; then west along the
         south boundaries of
         Sections 13, 14, 15, 16,
         17, and 18, Township 5
         South, Range 3 East; then
         north along the range
         line common to Range 2
         East and Range 3 East; to
         the Riverside-San
         Bernardino County Line
         (excluding the lands of
         the Santa Rosa Band of
         Cahuilla Mission
         Indians).
    That part of the lands of the   ..............  Unclassifiable/
     Santa Rosa Band of Cahuilla                     Attainment.
     Mission Indians which is
     excluded from the Riverside
     County (part) nonattainment
     area.
    San Bernardino County (part)..  ..............  Nonattainment........  ..............  Moderate.
        That portion of San
         Bernardino County which
         lies south and west of a
         line described as
         follows: Beginning at the
         San Bernardino-Riverside
         County boundary and
         running north along the
         range line common to
         Range 3 East and Range 2
         East, San Bernardino Base
         and Meridian; then west
         along the Township line
         common to Township 3
         North and Township 2
         North to the San
         Bernardino-Los Angeles
         County boundary.
Sacramento, CA:
    El Dorado County (part).......  ..............  Nonattainment........  ..............  Moderate.
        That portion of El Dorado
         County which lies west of
         the line described as
         follows: (Mount Diablo
         Base and Meridian)
         Beginning at the
         intersection of El Dorado-
         Amador county line and
         the township line common
         to townships T8N R10E and
         T8N R11E, then north
         along the range line
         common to ranges R10E and
         R11E, then east along the
         township line common to
         T9N and T8N, then north
         along the range line
         common to ranges R12E and
         R13E, then west along the
         township line common to
         T12N and T11N, then north
         along the range line
         common to ranges R10E and
         R11E, then west along the
         township line common to
         T13N and T12N, then north
         along the range line
         common to ranges R9E and
         R10E, to the El Dorado-
         Placer County boundary.
    Placer County (part)..........  ..............  Nonattainment........  ..............  Moderate.
        That portion of Placer
         County which lies west of
         the line described as
         follows: (Mount Diablo
         Base and Meridian)
         Beginning at the
         intersection of the
         Placer-El Dorado County
         line and the township
         line common to townships
         T12N R9E and T13N R9E,
         then running west along
         the township line common
         to townships T12N R9E and
         T13N R9E, then north
         along the range line
         common to ranges R8E and
         R9E, to the Placer-Nevada
         County boundary.
    Sacramento County.............  ..............  Nonattainment........  ..............  Moderate.
    Solano County (part)..........  ..............  Nonattainment........  ..............  Moderate.
        That portion of Solano
         County which lies north
         and east of a line
         described as follows:
         beginning at the
         intersection of the
         westerly boundary of
         Solano County and the 1/4
         section line running east
         and west through the
         center of Section 34;
         Township 6 North, Range 2
         West, Mount Diablo Base
         and Meridian, thence east
         along said 1/4 section
         line to the east boundary
         of Section 36, Township 6
         North, Range 2 West,
         thence south 1/2 mile and
         east 2.0 miles, more or
         less, along the west and
         south boundary of Los
         Putos Rancho to the
         northwest corner of
         Section 4, Township 5
         North, Range 1 West,
         thence east along a line
         common to Township 5
         North and Township 6
         North to the northeast
         corner of Section 3,
         Township 5 North, Range 1
         East, thence south along
         section lines to the
         southeast corner of
         Section 10, Township 3
         North, Range 1 East,
         thence east along section
         lines to the south 1/4
         corner of Section 8,
         Township 3 North, Range 2
         East, thence east to the
         boundary between Solano
         and Sacramento Counties.
    Yolo County (part)............  ..............  Nonattainment........  ..............  Moderate.

        That portion of Yolo
         County which lies east of
         the line described as
         follows: (Mount Diablo
         Base and Meridian)
         Beginning at the
         intersection of Yolo-
         Solano County boundary
         and the range line of the
         eastern edge of township
         T8N R2W, north along the
         range line of the eastern
         edge of township T8N R2W,
         continuing north along
         the range line common to
         ranges R2W and R1W, to
         the Yolo-Colusa County
         boundary.
San Francisco Bay Area, CA:
    Alameda County................  ..............  Nonattainment........  ..............  Moderate.
    Contra Costa County...........  ..............  Nonattainment........  ..............  Moderate.
    Marin County..................  ..............  Nonattainment........  ..............  Moderate.
    Napa County...................  ..............  Nonattainment........  ..............  Moderate.
    San Francisco County..........  ..............  Nonattainment........  ..............  Moderate.
    San Mateo County..............  ..............  Nonattainment........  ..............  Moderate.
    Santa Clara County............  ..............  Nonattainment........  ..............  Moderate.
    Solano County (part)..........  ..............  Nonattainment........  ..............  Moderate.
        That portion of Solano
         County which lies south
         and west of a line
         described as follows:
         Beginning at the
         intersection of the
         westerly boundary of
         Solano County and the 1/4
         section line running east
         and west through the
         center of Section 34,
         Township 6 North, Range 2
         West, Mount Diablo Base
         and Meridian, thence east
         along said 1/4 section
         line to the east boundary
         of Section 36, Township 6
         North, Range 2 West,
         thence south 1/2 mile and
         east 2.0 miles, more or
         less, along the west and
         south boundary of Los
         Putos Rancho to the
         northwest corner of
         Section 4, Township 5
         North, Range 1 West
         thence east along a line
         common to T5N and T6N to
         the northeast corner of
         Section 3, T5N, R1E,
         thence south along
         section lines to the
         southeast corner of
         Section 10, T3N, R1E,
         thence east along section
         lines to the south 1/4
         corner of Section 8, T3N,
         R2E, thence east to the
         boundary between Solano
         and Sacramento Counties.
    Sonoma County (part)..........  ..............  Nonattainment........  ..............  Moderate.
        That portion of Sonoma
         County which lies south
         and east of a line
         described as follows:
         Beginning at the
         southeasterly corner of
         the Rancho Estero
         Americano, being on the
         boundary line between
         Marin and Sonoma
         Counties, California;
         thence running northerly
         along the easterly
         boundary line of said
         Rancho Estero Americano
         to the northeasterly
         corner thereof, being an
         angle corner in the
         westerly boundary line of
         Rancho Canada de Jonive;
         thence running along said
         boundary of Rancho Canada
         de Jonive westerly,
         northerly and easterly to
         its intersection with the
         easterly line of Graton
         Road; thence running
         along the easterly and
         southerly line of Graton
         Road, northerly and
         easterly to its
         intersection with the
         easterly line of Sullivan
         Road; thence running
         northerly along said
         easterly line of Sullivan
         Road to the southerly
         line of Green Valley
         Road; thence running
         easterly along the said
         southerly line of Green
         Valley Road and easterly
         along the southerly line
         of State Highway 116, to
         the westerly line of Vine
         Hill Road; thence running
         along the westerly and
         northerly line of Vine
         Hill Road, northerly and
         easterly to its
         intersection with the
         westerly line of Laguna
         Road; thence running
         northerly along the
         westerly line of Laguna
         Road and the northerly
         projection thereof to the
         northerly line of Trenton
         Road; thence running
         westerly along the
         northerly line of said
         Trenton Road to the
         easterly line of Trenton-
         Healdsburg Road; thence
         running northerly along
         said easterly line of
         Trenton-Healdsburg Road
         to the easterly line of
         Eastside Road; thence
         running northerly along
         said easterly line of
         Eastside Road to its
         intersection with the
         southerly line of Rancho
         Sotoyome; thence running
         easterly along said
         southerly line of Rancho
         Sotoyome to its
         intersection with the
         Township line common to
         Townships 8 and 9 North,
         M.D.M.; thence running
         easterly along said
         township line to its
         intersection with the
         boundary line between
         Sonoma and Napa Counties.
San Joaquin Valley, CA:
    Fresno County.................  ..............  Nonattainment........  ..............  Moderate.
    Kern County (part)............  ..............  Nonattainment........  ..............  Moderate.
        That portion of Kern
         County which lies west
         and north of a line
         described as follows:
         Beginning at the Kern-Los
         Angeles County boundary
         and running north and
         east along the northwest
         boundary of the Rancho La
         Liebre Land Grant to the
         point of intersection
         with the range line
         common to R. 16 W. and R.
         17 W., San Bernardino
         Base and Meridian; north
         along the range line to
         the point of intersection
         with the Rancho El Tejon
         Land Grant boundary; then
         southeast, northeast, and
         northwest along the
         boundary of the Rancho El
         Tejon Land Grant to the
         northwest corner of Sec.
         3, T11N, R17W; then west
         1.2 miles; then north to
         the Rancho El Tejon Land
         Grant boundary; then
         northwest along the
         Rancho El Tejon line to
         the southeast corner of
         Sec. 34, T32S, R30E Mount
         Diablo Base And Meridian;
         then north to the
         northwest corner of Sec.
         35, T31S, R30E; then
         Northeast along the
         boundary of the Rancho El
         Tejon Land Grant to the
         southwest corner of Sec.
         18, T. 31 S., R. 31 E.;
         then east to the
         southeast corner of Sec.
         13, T. 31 S., R. 31 E.;
         then north along the
         range line common to R.
         31 E. and R. 32 E., Mount
         Diablo Base and Meridian,
         to the northwest corner
         of Sec. 6, T. 29 S., R.
         32 E.; then east to the
         southwest corner of Sec.
         31, T. 28 S., R. 32 E.;
         then north along the
         range line common to R.
         31 E. and R. 32 E. to the
         northwest corner of Sec.
         6, T. 28 S., R. 32 E.,
         then west to the
         southeast corner of Sec.
         36, T. 27 S., R. 31 E.,
         then north along the
         range line common to R.
         31 E. and R. 32 E. to the
         Kern-Tulare County
         boundary.
    Kings County..................  ..............  Nonattainment........  ..............  Moderate.
    Madera County.................  ..............  Nonattainment........  ..............  Moderate.
    Merced County.................  ..............  Nonattainment........  ..............  Moderate.
    San Joaquin County............  ..............  Nonattainment........  ..............  Moderate.
    Stanislaus County.............  ..............  Nonattainment........  ..............  Moderate.
    Tulare County.................  ..............  Nonattainment........  ..............  Moderate.
Yuba City-Marysville, CA:
    Sutter County.................  ..............  Nonattainment........  ..............  Moderate.
    Yuba County (part)............  ..............  Nonattainment........  ..............  Moderate.

        That portion of Yuba
         County which lies west of
         the line described as
         follows: (Mount Diablo
         Base and Meridian)
         Beginning at the
         intersection of the Yuba-
         Nevada county line and
         the range line common to
         ranges R7E and R8E, north
         to the southeast corner
         of township T18N R7E,
         then west along the
         township line common to
         T17N and T18N, then north
         along the range line
         common to ranges R6E and
         R7E, then west along the
         township line common to
         T19N and T18N to the Yuba-
         Butte County boundary.
Rest of State:
North Coast Air Basin:
    Del Norte County..............  ..............  Unclassifiable/
                                                     Attainment.
    Humboldt County...............  ..............  Unclassifiable/
                                                     Attainment.
    Mendocino County..............  ..............  Unclassifiable/
                                                     Attainment.
    Sonoma County (part)..........  ..............  Unclassifiable/
                                                     Attainment.
        That portion of Sonoma
         County which lies north
         and west of a line
         described as follows:
         Beginning at the
         southeasterly corner of
         the Rancho Estero
         Americano, being on the
         boundary line between
         Marin and Sonoma
         Counties, California;
         thence running northerly
         along the easterly
         boundary line of said