[Federal Register Volume 77, Number 5 (Monday, January 9, 2012)]
[Proposed Rules]
[Pages 1130-1179]
[FR Doc No: 2011-31234]

Vol. 77

Monday,

No. 5

January 9, 2012

Part II

Environmental Protection Agency

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40 CFR Parts 51, 60, 61, et al.

Revisions to Test Methods and Testing Regulations; Proposed Rule

Federal Register / Vol. 77 , No. 5 / Monday, January 9, 2012 /
Proposed Rules

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 51, 60, 61, and 63

[EPA-HQ-OAR-2010-0114; FRL-9501-3]
RIN 2060-AQ01

Revisions to Test Methods and Testing Regulations

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: This action proposes editorial and technical corrections
necessary for source testing of emissions and operations. The revisions
include the addition of alternative equipment and methods as well as
corrections to technical and typographical errors. We also solicit
public comment on potential changes to the current procedures for
determining emission stratification.

DATES: Comments must be received on or before March 9, 2012.
    Public Hearing. If anyone contacts the EPA by January 19, 2012
requesting to speak at a public hearing, a hearing will be held on
February 8, 2012.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-HQ-
OAR-2010-0114, by one of the following methods:
     www.regulations.gov: Follow the on-line instructions for
submitting comments.
     Email<EMAIL_ADDRESS>     Fax:<PHONE_NUMBER>.
     Mail: Revisions to Test Methods and Testing Regulations,
Docket No. EPA-HQ-OAR-2010-0114, Environmental Protection Agency,
Mailcode: 2822T, 1200 Pennsylvania Ave. NW., Washington, DC 20460.
Please include two copies.
     Hand Delivery: Docket No. EPA-HQ-OAR-2010-0114, EPA Docket
Center, Public Reading Room, EPA West, Room 3334, 1301 Constitution
Ave. NW., Washington, DC 20460. Such deliveries are only accepted
during the Docket's normal hours of operation, and special arrangements
should be made for deliveries of boxed information.

    Instructions: Direct your comments to Docket ID No. EPA-HQ-OAR-
2010-0114. The EPA's policy is that all comments received will be
included in the public docket without change and may be made available
online at http://www.regulations.gov, including any personal
information provided, unless the comment includes information claimed
to be Confidential Business Information (CBI) or other information
whose disclosure is restricted by statute. Do not submit information
that you consider to be CBI or otherwise protected through
www.regulations.gov or email. The www.regulations.gov Web site is an
``anonymous access'' system, which means the EPA will not know your
identity or contact information unless you provide it in the body of
your comment. If you send an email comment directly to the EPA without
going through www.regulations.gov, your email address will be
automatically captured and included as part of the comment that is
placed in the public docket and made available on the Internet. If you
submit an electronic comment, the EPA recommends that you include your
name and other contact information in the body of your comment as well
as with any disk or CD-ROM you submit. If the EPA cannot read your
comment due to technical difficulties and cannot contact you for
clarification, the EPA may not be able to consider your comment.
Electronic files should avoid the use of special characters, any form
of encryption, and be free of any defects or viruses.
    Docket: All documents in the docket are listed in the
www.regulations.gov index. Although listed in the index, some
information is not publicly available, e.g., CBI or other information
whose disclosure is restricted by statute. Certain other material, such
as copyrighted material, will be publicly available only in hard copy.
Publicly available docket materials are available either electronically
in www.regulations.gov or in hard copy at the Revisions to Test Methods
and Testing Regulations Docket, EPA/DC, EPA West, Room 3334, 1301
Constitution Ave. NW., Washington, DC 20460. The Public Reading Room is
open from 8:30 a.m. to 4:30 p.m., Monday through Friday, excluding
legal holidays. The telephone number for the Public Reading Room is
(202) 566-1744, and the telephone number for the Revisions to Test
Methods and Testing Regulations Docket is<PHONE_NUMBER>.

FOR FURTHER INFORMATION CONTACT: Mr. Foston Curtis, Office of Air
Quality Planning and Standards, Air Quality Assessment Division (E143-
02), Environmental Protection Agency, Research Triangle Park, NC 27711;
telephone number:<PHONE_NUMBER>; fax number:<PHONE_NUMBER>; email
address<EMAIL_ADDRESS>
SUPPLEMENTARY INFORMATION:

I. General Information

A. Does this action apply to me?

    The proposed amendments apply to a large number of industries that
are already subject to the current provisions of Parts 51, 60, 61, and
63. Therefore, we have not listed specific affected industries or their
North American Industry Classification System (NAICS) codes here. If
you have any questions regarding the applicability of this action to a
particular entity, consult either the air permitting authority for the
entity or your EPA regional representative as listed in 40 CFR 63.13.

B. What should I consider as I prepare my comments for the EPA?

    1. Submitting CBI. Do not submit this information to the EPA
through http://www.regulations.gov or email. Clearly mark any of the
information that you claim to be CBI. For CBI information in a disk or
CD-ROM that you mail to the EPA, mark the outside of the disk or CD-ROM
as CBI and then identify electronically within the disk or CD-ROM the
specific information that is claimed as CBI. In addition to one
complete version of the comment that includes information claimed as
CBI, a copy of the comment that does not contain the information
claimed as CBI must be submitted for inclusion in the public docket.
Information so marked will not be disclosed except in accordance with
procedures set forth in 40 CFR part 2.
    2. Tips for Preparing Your Comments. When submitting comments,
remember to:
     Follow directions--The Agency may ask you to respond to
specific questions or organize comments by referencing a Code of
Federal Regulations (CFR) part or section number.
     Explain why you agree or disagree, suggest alternatives,
and substitute language for your requested changes.
     Describe any assumptions and provide any technical
information and/or data that you used.
     If you estimate potential costs or burdens, explain how
you arrived at your estimate in sufficient detail to allow for it to be
reproduced.
     Provide specific examples to illustrate your concerns, and
suggest alternatives.
     Explain your views as clearly as possible, avoiding the
use of profanity or personal threats.
     Make sure to submit your comments by the comment period
deadline identified.

C. Where can I get a copy of this document?

    In addition to being available in the docket, an electronic copy of
this proposed rule will also be available on the Worldwide Web (WWW)
through the Technology Transfer Network (TTN). Following signature, a
copy of

this proposed rule will be posted on the TTN's policy and guidance page
for newly proposed or promulgated rules at the following address:
http://www.epa.gov/ttn/oarpg/. The TTN provides information and
technology exchange in various areas of air pollution control. A
redline/strikeout document comparing the proposed revisions to the
appropriate sections of the current rules is located in the docket.

D. How is this document organized?

    The supplementary information in this preamble is organized as
follows:

I. General Information
    A. Does this action apply to me?
    B. What should I consider as I prepare my comments for the EPA?
    C. Where can I get a copy of this document?
    D. How is this document organized?
II. Background
III. Summary of Amendments
    A. Appendix M of Part 51
    B. Method 201A of Appendix M of Part 51
    C. Method 202 of Appendix M of Part 51
    D. General Provisions (Subpart A) Part 60
    E. Industrial-Commercial-Institutional Steam Generating Units
(Subpart Db) Part 60
    F. Hospital/Medical/Infectious Waste Incinerators (Subpart Ec)
Part 60
    G. Sulfuric Acid Plants (Subpart H) Part 60
    H. Sewage Treatments Plants (Subpart O) Part 60
    I. Kraft Pulp Mills (Subpart BB) Part 60
    J. Stationary Gas Turbines (Subpart GG) Part 60
    K. Lead-Acid Battery Manufacturing Plants (Subpart KK) Part 60
    L. Metallic Mineral Processing Plants (Subpart LL) Part 60
    M. Asphalt Processing and Asphalt Roofing Manufacture (Subpart
UU) Part 60
    N. Volatile Organic Chemical (VOC) Emissions From Synthetic
Organic Compound Manufacturing Industry (SOCMI) Distillation
Operations (Subpart NNN) Part 60
    O. Stationary Compression Ignition Internal Combustion Engines
(Subpart IIII) Part 60
    P. Stationary Spark Ignition Internal Combustion Engines
(Subpart JJJJ) Part 60
    Q. Method 1 of Appendix A-1 of Part 60
    R. Method 2 of Appendix A-1 of Part 60
    S. Method 2A of Appendix A-1 of Part 60
    T. Method 2B of Appendix A-1 of Part 60
    U. Method 2D of Appendix A-1 of Part 60
    V. Method 3A of Appendix A-2 of Part 60
    W. Method 4 of Appendix A-3 of Part 60
    X. Method 5 of Appendix A-3 of Part 60
    Y. Method 5A of Appendix A-3 of Part 60
    Z. Method 5E of Appendix A-3 of Part 60
    AA. Method 5H of Appendix A-3 of Part 60
    BB. Method 6 of Appendix A-4 of Part 60
    CC. Method 6C of Appendix A-4 of Part 60
    DD. Method 7 of Appendix A-4 of Part 60
    EE. Method 7A of Appendix A-4 of Part 60
    FF. Method 7E of Appendix A-4 of Part 60
    GG. Method 8 of Appendix A-4 of Part 60
    HH. Method 10 of Appendix A-4 of Part 60
    II. Methods 10A and 10B of Appendix A-4 of Part 60
    JJ. Method 11 of Appendix A-5 of Part 60
    KK. Method 12 of Appendix A-5 of Part 60
    LL. Method 14A of Appendix A-5 of Part 60
    MM. Method 16A of Appendix A-6 of Part 60
    NN. Method 18 of Appendix A-6 of Part 60
    OO. Method 23 of Appendix A-7 of Part 60
    PP. Method 24 of Appendix A-7 of Part 60
    QQ. Method 25 of Appendix A-7 of Part 60
    RR. Method 25C of Appendix A-7 of Part 60
    SS. Method 25D of Appendix A-7 of Part 60
    TT. Method 26 of Appendix A-8 of Part 60
    UU. Method 29 of Appendix A-8 of Part 60
    VV. Method 30B of Appendix A-8 of Part 60
    WW. Performance Specification 1 of Appendix B of Part 60
    XX. Performance Specification 3 of Appendix B of Part 60
    YY. Performance Specification 4 of Appendix B of Part 60
    ZZ. Performance Specification 4B of Appendix B of Part 60
    AAA. Performance Specification 7 of Appendix B of Part 60
    BBB. Performance Specification 11 of Appendix B of Part 60
    CCC. Performance Specification 15 of Appendix B of Part 60
    DDD. Performance Specification 16 of Appendix B of Part 60
    EEE. Procedure 1 of Appendix F of Part 60
    FFF. Procedure 2 of Appendix F of Part 60
    GGG. Procedure 5 of Appendix F of Part 60
    HHH. General Provisions (Subpart A) Part 61
    III. Beryllium (Subpart C) Part 61
    JJJ. Beryllium Rocket Motor Firing (Subpart D) Part 61
    KKK. Mercury (Subpart E) Part 61
    LLL. Inorganic Arsenic Emissions from Glass Manufacturing Plants
(Subpart N) Part 61
    MMM. Method 101 of Appendix B of Part 61
    NNN. Method 101A of Appendix B of Part 61
    OOO. Method 102 of Appendix B of Part 61
    PPP. Method 104 of Appendix B of Part 61
    QQQ. Methods 108 and 108A of Appendix B of Part 61
    RRR. General Provisions (Subpart A) Part 63
    SSS. Synthetic Organic Chemical Manufacturing Industry (Subpart
G) Part 63
    TTT. Chromium Emissions From Hard and Decorative Chromium
Electroplating and Chromium Anodizing Tanks (Subpart N) Part 63
    UUU. Ethylene Oxide Emissions Standards for Sterilization
Facilities (Subpart O) Part 63
    VVV. Marine Tank Vessel Loading Operations (Subpart Y) Part 63
    WWW. Aerospace Manufacturing and Rework Facilities (Subpart GG)
Part 63
    XXX. Pharmaceuticals Production (Subpart GGG) Part 63
    YYY. Secondary Aluminum Production (Subpart RRR) Part 63
    ZZZ. Manufacturing of Nutritional Yeast (Subpart CCCC) Part 63
    AAAA. Petroleum Refineries: Catalytic Cracking Units, Catalytic
Reforming Units, and Sulfur Recovery Units (Subpart UUUU) Part 63
    BBBB. Stationary Reciprocating Internal Combustion Engines
(Subpart ZZZZ) Part 63
    CCCC. Method 306 of Appendix A of Part 63
    DDDD. Method 306A of Appendix A of Part 63
    EEEE. Methods 308, 315, and 316 of Appendix A of Part 63
    FFFF. Method 321 of Appendix A of Part 63
IV. Request for Comments
V. Statutory and Executive Order Reviews
    A. Executive Order 12866: Regulatory Planning and Review and
Executive Order 13563: Improving Regulations and Regulatory Review
    B. Paperwork Reduction Act
    C. Regulatory Flexibility Act
    D. Unfunded Mandates Reform Act
    E. Executive Order 13132: Federalism
    F. Executive Order 13175: Consultation and Coordination With
Indian Tribal Governments
    G. Executive Order 13045: Protection of Children From
Environmental Health and Safety Risks
    H. Executive Order 13211: Actions Concerning Regulations That
Significantly Affect Energy Supply, Distribution, or Use
    I. National Technology Transfer and Advancement Act
    J. Executive Order 12898: Federal Actions To Address
Environmental Justice in Minority Populations and Low-Income
Populations

II. Background

    The EPA catalogs revisions and updates that are needed for test
methods, performance specifications, and associated regulations in 40
CFR parts 51, 60, 61, and 63, and proposes the revisions on a 5- to 10-
year basis. The last methods update was published as a final rule on
October 17, 2000 (65 FR 61744). Many of these needed revisions were
brought to our attention by affected parties and end-users. The
revisions consist of allowable alternatives that were not previously
available, changes that facilitate the use of mercury-free equipment,
and updates needed to correct obsolete provisions or add flexibility.
Corrections to typographical errors and technical errors in equations
and diagrams are also proposed. It is important to note that although
numerous technical

corrections are being proposed to portions of the subparts in parts 51,
60, 61, and 63, changes are not made to any compliance standard,
reporting, or recordkeeping requirement. For this notice, the EPA is
only proposing revisions to sections of the subpart pertaining to
source testing or monitoring of emissions and operations.

III. Summary of Amendments

A. Appendix M of Part 51

    In the introduction of Appendix M of part 51, Methods 3A and 19
would be added to the list of methods not requiring the use of audit
samples. Method 3A is a direct measurement instrumental method which
the audit program does not evaluate, and Method 19 deals with
calculation procedures and not measurement procedures.

B. Method 201A of Appendix M of Part 51

    Revisions would be made to the Method 201A published on December
21, 2010. Typographical errors in references to isokinetic sampling
rate, source gas temperatures, stack blockage dimensions by the
sampling heads, and PM10 in Sections 8.3.4(b), <IP_ADDRESS>,
<IP_ADDRESS>, and <IP_ADDRESS>(a), respectively, would be corrected. An erroneous
reference to Methods 4A and 5 in Section 10.1 when using a standard
pitot tube would be corrected to refer to Methods 1 and 2. Section
10.5, which addresses Class A volumetric glassware, would be deleted
because it is not needed in the method. For those filters whose weight
cannot be weighed to a constant weight in Section 11.2.1, instruction
would be added to flag and report the data as a minimum value. It would
be noted that the nozzle, front half, and in-stack filter samples need
to be speciated into organic and inorganic fractions to be similar to
the practice in Method 17. The method would also note that neither
Method 17 nor 201A require a separate analysis of the filter for
inorganic and organic particulate matter. Method 201A is often used
together with Method 202 which requires a separate analysis of
inorganic and organic PM. This note would remind testers that a
separate analysis is not required for Method 201A. An incorrect term in
Equation 9 of Section 12.5 would be corrected. In the nomenclature in
Section 12.1, Vb, the volume of aliquot taken for ion
chromatography (IC) analysis, would be deleted since no IC analysis is
performed.

C. Method 202 of Appendix M of Part 51

    Revisions would be made to the Method 202 published on December 21,
2010. In Section <IP_ADDRESS>, the text referring to empty impingers would
be deleted because empty impingers are not used. Figures 2 and 3 would
be revised to correctly show the first impinger with an extended stem
instead of a shortened one to be consistent with the method text, and
the condensed moisture and sample portion of the sampling train would
be labeled to make it easy to identify. Figures 4, 5, and 6 would be
republished because they did not print clearly in the December 21,
2010, publication.

D. General Provisions (Subpart A) Part 60

    In the General Provisions of part 60, Methods 3A and 19 would be
added to the list of methods not requiring the use of audit samples in
Sec.  60.8(gd). Method 3A is a direct measurement instrumental method
which the audit program does not evaluate, and Method 19 deals with
calculation procedures in lieu of measurement procedures.
    A new Sec.  60.8(h) would be added to require that sampling sites
be evaluated for cyclonic flow and stratification before testing.
Cyclonic flow and gas stratification has not been adequately addressed
in the past except for particulate measurement methods. Our experience
has been that gaseous pollutant measurements may also be affected by
these phenomena. Procedures currently used in Methods 1 and 7E would be
referenced for all tests to evaluate the suitability of test locations
and give procedures for testing under conditions of gas stratification
and cyclonic flow to preclude non-representative sampling.
    A new Sec.  60.8(i) would be added to allow the use of Method 205
of 40 CFR part 51, Appendix M, ``Verification of Gas Dilution Systems
for Field Instrument Calibrations,'' as an alternative provision
whenever the use of multiple calibration gases is required under Part
60. Method 205 has previously been allowed for different applications
on a case-by-case basis. Method 205 reduces the number of cylinder
gases needed for a test by allowing lower-concentration gases to be
generated from a high-level gas. Section 60.13(d)(1) would be revised
to remove the phrase ``automatically, intrinsic to the opacity
monitor'' which was incorrectly inserted into the paragraph in a past
revision. The title of an organization in a method that is incorporated
by reference would be updated in Sec.  60.17(e), and the edition of the
method referred to in Sec.  60.17(e)(1) would be updated to reflect the
currently available version.

E. Industrial-Commercial-Institutional Steam Generating Units (Subpart
Db) Part 60

    In subpart Db, Method 320 would be added as an alternative to the
methods for determining nitrogen oxides (NOX) concentration
in Sec.  60.46b(f)(1)(ii), (h)(1) and (2), and sulfur dioxide
(SO2) concentration in Sec.  60.47b(b)(2). The EPA has
allowed the use of Method 320 in the past on a case-by-case basis and
now believes it is appropriate for general use.

F. Hospital/Medical/Infectious Waste Incinerators (Subpart Ec) Part 60

    In subpart Ec, the definition of medical/infectious wastes in Sec.
60.51c would be revised to correct the misspelling of ``cremation.''

G. Sulfuric Acid Plants (Subpart H) Part 60

    In Subpart H, an equation for calculating the SO2
emission rate in Sec.  60.84(d) would be corrected.

H. Sewage Treatment Plants (Subpart O) Part 60

    In subpart O, a reference to Method 209F in Sec.  60.154(b)(5)
would be revised to reflect a newer available version of the method
(i.e., 2540G).

I. Kraft Pulp Mills (Subpart BB) Part 60

    In subpart BB, a typographical error in the equation in Sec.
60.284(c)(3) would be corrected.

J. Stationary Gas Turbines (Subpart GG) Part 60

    In subpart GG, the definitions of terms for the equation in Sec.
60.335(b)(l) would be revised to allow the reference combustor inlet
absolute pressure to be measured in millimeters of mercury (mm Hg).
Using the site barometric pressure gives comparable results to the
observed combustor inlet absolute pressure for calculating the mean
NOX emission concentration and would be allowed as an
alternative.

K. Lead-Acid Battery Manufacturing Plants (Subpart KK) Part 60

    In subpart KK, Method 29 would be added as an alternative to Method
12 in Sec.  60.374(b)(1)and (c)(2) for determining the lead
concentration and flow rate of the effluent gas. Method 29 is an
accepted method for determining lead under other rules and is
appropriate for this subpart as well. Also, an error in the equation
for calculating the lead emission concentration in 60.374(b)(2) would
be corrected.

L. Metallic Mineral Processing Plants (Subpart LL) Part 60

    In subpart LL, an error in the value of the particulate matter
standard in Sec.  60.382(a)(1) would be corrected from 0.02 g/dscm to
0.05 g/dscm. An alternative procedure, where a single visible emission
observer may conduct visible emission observations for up to three
fugitive, stack, or vent emission points within a 15-second interval,
would be added to Sec.  60.386. This alternative would allow the
observer to take readings in a more cost-effective and timely manner
than currently allowed.

M. Asphalt Processing and Asphalt Roofing Manufacture (Subpart UU) Part
60

    In subpart UU, an error in the value of the particulate matter
standard for saturated felt or smooth-surfaced roll roofing in Sec.
60.472(a)(1)(ii) would be corrected from 0.04 kg/Mg to 0.4 kg/Mg.

N. Volatile Organic Compound (VOC) Emissions From Synthetic Organic
Chemical Manufacturing Industry (SOCMI) Distillation Operations
(Subpart NNN) Part 60

    In subpart NNN, several paragraphs were renumbered in a previous
amendment, but conforming changes in sections that referenced these
paragraphs were not made. In Sec.  60.660(c)(4) and Sec.  60.665(h)(2)
and (3), these references would be corrected.

O. Stationary Compression Ignition Internal Combustion Engines (Subpart
IIII) Part 60

    In Subpart IIII, the use of Method 1 or 1A for sampling point
selection would be dropped, and single-point sampling at the centroid
of the exhaust would be added. The exhausts of most regulated engines
are too small and not equipped with sampling ports. This makes it
difficult to divide the exhaust into multiple sampling-point locations
as required by Methods 1 and 1A. Table 7 would be revised to delete the
requirement to use Method 1 or 1A.

P. Stationary Spark Ignition Internal Combustion Engines (Subpart JJJJ)
Part 60

    In Subpart JJJJ, the exhausts of most regulated engines do not
contain sampling ports and are too small to be subdivided into multiple
sampling-point locations. Table 2 would be revised to delete the
requirement to use Method 1 or 1A for determining sampling site and
sampling-point location, and instruction would be added to sample at
the centroid of the exhaust.

Q. Method 1 of Appendix A-1 of Part 60

    In Method 1, Section 11.2.2 would be clarified to note that it
specifically applies to gaseous measurements. The provisions in the
section for determining exhaust gas stratification would be streamlined
to make them consistent with the new stratification provisions in
Method 7E. Figures 1-1 and 1-2 would be clarified to note that the
horizontal coordinates represent the duct diameters from the sampling
point to the flow disturbance and not simply the duct diameters from
the flow disturbance. Figure 1-2 would also be corrected to show the
proper demarcation between the requirement for 12 and 16 sampling
points. The test for the presence or absence of cyclonic flow would be
required for all tests instead of recommended at sites suspected of
having cyclonic flow.

R. Method 2 of Appendix A-1 of Part 60

    In Method 2, a pressure stability specification that has been
lacking for the pitot tube leak-check would be added to clearly note
the desired stability. An erroneous reference to a Figure 2-6B would be
corrected to reference Figure 2-7B. An error in a term in the
denominator of Equation 2-7 would be corrected to the average of the
square root of delta P rather than the square root of the average delta
P. The velocity constant in English units used in Equation 2-7 would be
corrected by changing m/sec to ft/sec. The term for absolute
temperature in Equations 2-7 and 2-8 would be corrected to represent
the average of the absolute temperatures; an inadvertently omitted term
would be added to Section 12.1 for the average absolute temperature;
and calibrating a barometer against a NIST-traceable barometer would be
added as an alternative to calibrating against a mercury barometer to
facilitate the use of mercury-free products.

S. Method 2A of Appendix A-1 of Part 60

    In Method 2A, calibrating a barometer against a NIST-traceable
barometer would be added as an alternative to calibrating against a
mercury barometer to facilitate the use of mercury-free products.

T. Method 2B of Appendix A-1 of Part 60

    In Method 2B, nomenclature errors would be corrected and the
assumed ambient carbon dioxide concentration used in the calculations
would be changed from 300 to 380 ppm to closer approximate current
ambient levels.

U. Method 2D of Appendix A-1 of Part 60

    In Method 2D, calibrating a barometer against a NIST-traceable
barometer would be added as an alternative to calibrating against a
mercury barometer to facilitate the use of mercury-free products.

V. Method 3A of Appendix A-2 of Part 60

    In Method 3A, a redundant sentence noting that pre-cleaned air may
be used for the high-level calibration gas would be deleted.

W. Method 4 of Appendix A-3 of Part 60

    In Method 4, the English value for the leak rate exceedance in
Section 9.1 would be corrected from 0.20 cfm to 0.020 cfm. Method 6A,
Method 320, and a calculation using F-factors would be added as
alternatives to Method 4 for the moisture determination. These are
logical alternatives in cases where Methods 6A and 320 are already
being used, and the F-factors approach can save both time and expenses
in some cases.

X. Method 5 of Appendix A-3 of Part 60

    In Method 5, a clarification would be added that the deionized
water used in the analysis of material caught in the impingers must
have <=0.001 percent residue; the factor K would be corrected to K' in
Equation 5-13; calibrating a barometer against a NIST-traceable
barometer would be added as an alternative to calibrating against a
mercury barometer to facilitate the use of mercury-free products;
calibrating a temperature sensor against a thermometer equivalent to a
mercury-in-glass thermometer would be added as an alternative to
calibrating against a mercury-in-glass thermometer to facilitate the
use of mercury-free products; rechecking temperature sensors for the
filter holder and metering system after each test has been found to be
sufficient and would replace having sensors calibrated within 3 [deg]F;
the option to check the probe heater calibration after a test at a
single point using a reference thermometer would be added; the use of
weather station barometric pressure corrected to testing point
elevation would be added as an option to having an on-site barometer;
mention of stopcock grease for air-tight impinger seals would be
deleted since it is outdated and not often used; a smaller acetone
cleanup blank is determined sufficient and a single blank per container
would be allowed in place of a blank from each wash bottle; Section
10.3.3 would be clarified as a post-test

metering system calibration check rather than a metering system
calibration, and an alternative metering check procedure would be
added; the Isostack metering system would be noted as an acceptable
system for determining sample flow rates; the use of a Teflon filter
holder would be allowed without having to obtain the Administrator's
approval first; and Reference 13 for post-test calibration would be
added to the method.

Y. Method 5A of Appendix A-3 of Part 60

    In Method 5A, mercury-free thermometers would be added as an
alternative to mercury-in-glass thermometers to facilitate the use of
mercury-free products.

Z. Method 5E of Appendix A-3 of Part 60

    In Method 5E, the use of the Rosemount Model 2100A total organic
content analyzer would be replaced with the Tekmar-Dohrmann or
equivalent analyzer, as neither the Rosemount analyzer nor any similar
dual-injection analyzer is currently manufactured. Also, Section 12.5
inadvertently labels the equation for total particulate concentration
as Eq. 5E-4, which would be corrected to Eq. 5E-5.

AA. Method 5H of Appendix A-3 of Part 60

    In Method 5H, Section 12.1 would be revised to add missing terms
Ci, Co, Qi, and Qo; and
procedures for the determination of an alternative tracer gas flow rate
would be added.

BB. Method 6 of Appendix A-4 of Part 60

    In Method 6, calibrating a temperature sensor against a thermometer
equivalent to a mercury-in-glass thermometer would be added as an
alternative to using a mercury-in-glass thermometer, and calibrating a
barometer against a NIST-traceable barometer would be added as an
alternative to calibrating against a mercury barometer. These revisions
would facilitate the use of mercury-free products.

CC. Method 6C of Appendix A-4 of Part 60

    In Section 4.0 of Method 6C, an incorrect reference to Section 4.1
of Method 6 would be corrected to reference Section 4.0 of Method 7E.
Provisions that were removed from the original method that addressed
potential quenching effects in fluorescence analyzers would be added
again. It was previously believed that current fluorescence analyzers
are not affected by quenching effects; however, we were informed that
the provisions are still needed in many cases.

DD. Method 7 of Appendix A-4 of Part 60

    In Method 7, procedures would be added to avoid biased results when
sampling under conditions of high SO2 concentrations;
calibrating a barometer against a NIST-traceable barometer would be
added as an alternative to calibrating against a mercury barometer; and
calibrating a temperature sensor against a thermometer equivalent to a
mercury-in-glass thermometer would be added as an alternative to using
a mercury-in-glass thermometer. These revisions would facilitate the
use of mercury-free products.

EE. Method 7A of Appendix A-4 of Part 60

    In Method 7A, new procedures would be added to avoid biased results
when sampling under conditions of high SO2 concentrations,
and calibrating a temperature sensor against a thermometer equivalent
to a mercury-in-glass thermometer would be added as an alternative to
using a mercury-in-glass thermometer to facilitate the use of mercury-
free products.

FF. Method 7E of Appendix A-4 of Part 60

    In Method 7E, the instructions for choosing the high-level
calibration gas would be clarified. Instructions would be added to
minimize contact of the sample with any condensate to reduce the chance
of sample loss, and an error in the traverse point locations used to
determine stratification across large stacks would be corrected. A
statement noting that the stratification test is not required at
sources with temporally varying emissions or low-concentration
emissions would be added since a stratification test under such
conditions would be meaningless or difficult to pass. The basis of a
stable response for measurements in the system response time
determination would be revised in Section 8.2.5 to conform with Section
8.2.6. The response time reading would be recorded after the
concentration reading has reached 95 percent or within 0.5 ppm of a
stable response for the gas instead of after reaching 95 percent of the
certified gas concentration. This change removes a potential conflict
between the response time stable reading criterion and the bias or
system calibration error test criterion. Alternative sampling bags made
of materials other than Tedlar would be allowed if the materials are
applicable for retaining the compounds of interest. Tedlar bags are no
longer being produced.

GG. Method 8 of Appendix A-4 of Part 60

    In Method 8, corrections would be made to errors in the sample
aliquot volumes required for containers 1 and 2 and in the values for
Va and Vsoln. Figure 8-1 would be clarified to
identify which impingers collect sulfuric acid/sulfur trioxide and
which collect sulfur dioxide.

HH. Method 10 of Appendix A-4 of Part 60

    Method 10 would be revised to allow the use of sample tanks as an
alternative to flexible bags for sample collection. Tanks are an
acceptable collection medium, are currently allowed for carbon monoxide
in other EPA methods, and are appropriate for Method 10 as well.

II. Methods 10A and 10B of Appendix A-4 of Part 60

    In Methods 10A and 10B, sampling bags made of materials other than
Tedlar would be allowed if the materials have the sample retaining
qualities of Tedlar. Tedlar bags are no longer produced.

JJ. Method 11 of Appendix A-5 of Part 60

    Method 11 would be revised to address sample breakthrough at high
concentrations. An additional collection impinger would be added to the
train whenever the final impinger solution exhibits a yellow color.
Calibrating a temperature sensor against a thermometer equivalent to a
mercury-in-glass thermometer would be added as an alternative to using
a mercury-in-glass thermometer to facilitate the use of mercury-free
products.

KK. Method 12 of Appendix A-5 of Part 60

    Method 12 would be revised to allow an analysis by inductively
coupled plasma-atomic emission spectrometry (ICP-AES) or cold vapor
atomic fluorescence spectrometry (CVAFS) as alternatives to atomic
absorption (AA) analysis. The ICP-AES is currently an approved
technique for lead analysis in Method 29, and CVAFS offers comparable
sensitivity and precision to AA.

LL. Method 14A of Appendix A-5 of Part 60

    In Section 10.1.1 of Method 14A, we inadvertently referenced Figure
5-6.

This reference would be corrected to Figure 5-5.

MM. Method 16A of Appendix A-6 of Part 60

    In Method 16A, the applicability section would note that method
results may be biased low if used at sources other than kraft pulp
mills where stack oxygen levels may be lower.

NN. Method 18 of Appendix A-6 of Part 60

    In Method 18, sampling bags made of materials other than Tedlar
would be allowed if the materials are applicable for retaining the
compounds of interest. Tedlar bags are no longer produced.

OO. Method 23 of Appendix A-7 of Part 60

    In Method 23, the requirement in Section 2.2.7 that silica gel be
stored in metal containers is unnecessary and would be deleted. Section
4.2.7 would be clarified to note that the used silica gel should be
transferred to its original container or other suitable vessel if
moisture is being determined. If moisture is not being determined, the
spent silica gel may be discarded. Mercury-free thermometers would be
added as an alternative to using mercury-in-glass thermometers to
facilitate the use of mercury-free products.

PP. Method 24 of Appendix A-7 of Part 60

    Method 24 would be revised to cite only ASTM Method D2369 and not
the specific sections of the method, since the section numbers may
change with periodic updates.

QQ. Method 25 of Appendix A-7 of Part 60

    In Method 25, more detailed information would be added to describe
the filters used for sample collection.

RR. Method 25C of Appendix A-7 of Part 60

    Method 25C would be revised to allow sampling lines made of Teflon.
Probes that have closed points and are driven below surface in a single
step and withdrawn at a distance to create a gas gap would be allowed
as acceptable substitutes to using pilot probes and the auger
procedure. An equation for correcting the sample nitrogen concentration
for tank dilution would be added as a supplemental calculation option.

SS. Method 25D of Appendix A-7 of Part 60

    In Method 25D, errors in cross-references within the method would
be corrected.

TT. Method 26 of Appendix A-8 of Part 60

    Method 26 would be revised to allow the use of heated Teflon probes
in place of glass-lined probes. Conflicting temperature requirements
for the sampling system would be clarified. The note to keep the probe
and filter temperature at least 20 [deg]C above the source temperature
would be removed because the specification is not needed at higher
temperature stacks. The location of the thermocouple that monitors the
collected gas temperature would be clarified as being in the gas
stream, not the filter box. Method 26A would be an acceptable
alternative to Method 26 since the methods are fundamentally similar
and give comparable results when determining non-particulate hydrogen
halides.

UU. Method 29 of Appendix A-8 of Part 60

    Method 29 would be revised to allow samples to be analyzed by CVAFS
as an alternative to AA analysis since CVAFS is as sensitive and
precise as AA.

VV. Method 30B of Appendix A-8 of Part 60

    In Method 30B, calibrating a barometer against a NIST-traceable
barometer would be added as an alternative to calibrating against a
mercury barometer to facilitate the use of mercury-free products.
    Table 9-1 and the method text would be revised to amend the quality
assurance/quality control criteria for sorbent trap section 2
breakthrough and sample analysis. These revisions would address
compliance testing and relative accuracy testing of mercury monitoring
systems currently being conducted at much lower emission
concentrations.
    For compliance/emissions testing, the specification in Table 9-1
for sample analysis would be revised to require analytical results be
within the valid calibration range down to a concentration of 0.01
[micro]g/dscm. This will ensure that measurements at the low levels
being measured under recent rulemakings are of known, acceptable, and
consistent quality. For relative accuracy testing of mercury monitoring
systems, the sample analysis specification in Table 9-1 would remain
the same, but the breakthrough criteria for second section in the
sorbent traps would be revised to provide additional flexibility where
mercury concentrations are less than 0.5 [micro]g/dscm.
    Finally, Method 30B would be revised to include the most up to date
citation for determining the method detection limit or MDL.

WW. Performance Specification 1 of Appendix B of Part 60

    In Performance Specification 1, the terms ``full scale'' and
``span'' would be noted as having the same meaning.

XX. Performance Specification 3 of Appendix B of Part 60

    In Performance Specification 3, a statement that allows the
relative accuracy to be within 20 percent of the reference method would
be added to establish the original intent of the rule. This statement
was inadvertently deleted in a previous amendment.

YY. Performance Specification 4 of Appendix B of Part 60

    Performance Specification 4 would be revised to remove the required
use of the interference trap specified in Method 10 when evaluating
non-dispersive infrared continuous emission monitoring systems against
Method 10. This is an old requirement, and the trap is not needed with
modern analyzers.

ZZ. Performance Specification 4B of Appendix B of Part 60

    Performance Specification 4B would be clarified to note that
Equation 1 in Section 7.1.1 for calculating calibration error only
applies to the carbon monoxide monitor and not the oxygen monitor. It
would be noted for the oxygen monitor that the calibration error should
be expressed as the oxygen concentration difference between the mean
monitor and reference value at three levels.

AAA. Performance Specification 7 of Appendix B of Part 60

    Performance Specification 7 would be revised to allow Methods 15
and 16 as reference methods in addition to Method 11. Methods 15 and 16
are approved for determining hydrogen sulfide and are appropriate for
this application. Methods 15 and 16 are approved EPA reference methods
for a number of sources. A pertinent reference would also be added to
the references section.

BBB. Performance Specification 11 of Appendix B of Part 60

    In Performance Specification 11, errors in the denominators of
Equations 11-1 and 11-2 would be corrected.

CCC. Performance Specification 15 of Appendix B of Part 60

    In Performance Specification 15, the general references to 40 CFR
part 60, Appendix B for the relative accuracy analysis procedure would
specifically cite Performance Specification 2 of 40 CFR part 60,
Appendix B.

DDD. Performance Specification 16 of Appendix B of Part 60

    Performance Specification 16 would be clarified to answer questions
that have arisen since its publication. Retesting a predictive emission
monitoring system (PEMS) after a sensor is replaced would be explained
more clearly. Allowances would be made for relative accuracy testing at
three load or production rate levels in cases where the key operating
parameter could not be readily altered. Additional instruction would be
added for performing the relative accuracy audit (RAA). An error in the
RAA acceptance criterion would be corrected, and an alternative
acceptance criterion for low concentration measurements would be added.
The yearly relative accuracy test audit would clearly note that the
statistical tests in Section 8.3 are not required. An incorrect
reference to Equation 16-4 in Section 12.4 would be corrected.

EEE. Procedure 1 of Appendix F of Part 60

    In Procedure 1, the relevant performance specification would be
cited for the RAA calculation instead of using the current Equation 1-1
which is not appropriate for all pollutants.

FFF. Procedure 2 of Appendix F of Part 60

    In Procedure 2, Equations 2-2 and 2-3 would be revised to have the
full-scale value in the denominator, which is more appropriate than the
up-scale check value. The denominator of equation 2-4 would be revised
to include the volume of the reference device rather than the full-
scale value. These revisions reflect the original intent of the rule.

GGG. Procedure 5 of Appendix F of Part 60

    In Procedure 5, the second section listed as Section 6.2.6 would be
correctly numbered as Section 6.2.7.

HHH. General Provisions (Subpart A) Part 61

    In the General Provisions of part 61, Methods 3A and 19 would be
added to the list of methods not requiring the use of audit samples in
Sec.  61.13(e). These methods were inadvertently omitted in the
original rule.

III. Beryllium (Subpart C) Part 61

    In the beryllium National Emission Standards for Hazardous Air
Pollutants (NESHAP), Method 29 of part 60 would be added as an
alternative to Method 104 in Sec.  61.33(a) for emissions testing since
Method 29 is used to determine beryllium under other rules and is
appropriate for this subpart as well.

JJJ. Beryllium Rocket Motor Firing (Subpart D) Part 61

    In the beryllium rocket motor firing NESHAP, a conversion error in
the emission standard in Sec.  61.42(a) would be corrected.

KKK. Mercury (Subpart E) Part 61

    In the mercury NESHAP, Method 29 of part 60 would be added as an
alternative to Method 101A in Sec.  61.53(d)(2) for emissions testing
since Method 29 is used to determine mercury under other rules and is
appropriate for this subpart as well.

LLL. Inorganic Arsenic Emissions From Glass Manufacturing Plants
(Subpart N) Part 61

    In the glass manufacturing plants NESHAP, Method 29 in Appendix A
of part 60 would be added as an alternative to Method 108 in Sec.
61.164(d)(2)(i) for determining the arsenic emissions rate and in Sec.
61.164(e)(1)(i) and (e)(2) for determining the arsenic concentration in
a gas stream. Method 29 is used to determine arsenic under other rules
and is appropriate for this subpart as well.

MMM. Method 101 of Appendix B of Part 61

    Method 101 would be revised to allow analysis by ICP-AES or CVAFS
as alternatives to AA analysis. These techniques are allowed for
determining mercury in other approved methods and are appropriate for
Method 101 as well. They were not available when Method 101 was
promulgated.

NNN. Method 101A of Appendix B of Part 61

    Method 101A would be revised to allow analysis by ICP-AES or CVAFS
as alternatives to AA analysis. These techniques are allowed for
determining mercury in other approved methods and are appropriate for
Method 101A as well. They were not available when Method 101A was
promulgated.

OOO. Method 102 of Appendix B of Part 61

    In Method 102, mercury-free thermometers would be allowed in place
of mercury-in-glass thermometers to facilitate the use of mercury-free
products.

PPP. Method 104 of Appendix B of Part 61

    Method 104 would be revised to allow analysis by ICP-AES as an
alternative to AA analysis. This new technique is acceptable for
measuring beryllium and was not available when Method 104 was
promulgated. A new alternative procedures section would be added to
address ICP-AES.

QQQ. Methods 108 and 108A of Appendix B of Part 61

    Methods 108 and 108A would be revised to allow analysis by ICP-AES
as an alternative to AA analysis. This new technique is acceptable for
measuring arsenic and was not available when Methods 108 and 108A were
promulgated. A new alternative procedures section would be added to
address ICP-AES.

RRR. General Provisions (Subpart A) Part 63

    In the General Provisions of part 63, Methods 3A and 19 would be
added to the list of methods not requiring the use of audit samples in
Sec.  63.7(c). These were inadvertent omissions of the original rule.
In Sec.  63.8(f)(6)(iii), an incorrect reference to a section of
Performance Specification 2 would be corrected.

SSS. Synthetic Organic Chemical Manufacturing Industry (Subpart G) Part
63

    Subpart G would be revised to allow the use of Method 8260B in the
SW-846 Compendium of Methods or Method 316 to determine hazardous air
pollutant concentrations in wastewater streams in Sec.
63.144(b)(5)(i). Both methods are appropriate for this application but
were not considered during the original rule development.

TTT. Chromium Emissions From Hard and Decorative Chromium
Electroplating and Chromium Anodizing Tanks (Subpart N) Part 63

    South Coast Air Quality Management District Method 205.1 would be
added as a testing option for measuring total chromium. Method 205.1 is
appropriate for this application, but its application to this rule was
not considered during the original rule development.

UUU. Ethylene Oxide Emissions Standards for Sterilization Facilities
(Subpart O) Part 63

    The ethylene oxide emissions standards for sterilization facilities
NESHAP would be revised to allow

California Air Resources Board (CARB) Method 431 as an alternative to
the procedures in Sec.  63.365(b) for determining efficiency at the
sterilization chamber vent. Method 431 is appropriate for this
application but was not considered during the original rule
development. An error in a reference to a section in Performance
Specification 8 would also be corrected.

VVV. Marine Tank Vessel Loading Operations (Subpart Y) Part 63

    The marine tank vessel loading operations NESHAP would be revised
to allow Method 25B as an alternative to Method 25A in Sec.
63.565(d)(5) for determining the average volatile organic compound
(VOC) concentration upstream and downstream of recovery devices. Method
25B would be allowed as an alternative to Methods 25 and 25A for
determining the percent reduction in VOC in Sec.  63.565(d)(8), and the
requirement that Method 25B be validated according to Method 301 in
Sec.  63.565(d)(10) would be added. Method 25B would also be added as
an alternative to Method 25A in determining the baseline outlet VOC
concentration in Sec.  63.565(g). Method 25B uses a different detector
than Method 25A but gives comparable results to Method 25A in these
applications.

WWW. Aerospace Manufacturing and Rework Facilities (Subpart GG) Part 63

    The aerospace manufacturing and rework facilities NESHAP would be
revised to remove an incorrect reference to the location of Method 319
in Sec.  63.750(o).

XXX. Pharmaceuticals Production (Subpart GGG) Part 63

    The pharmaceuticals production NESHAP would be revised to allow
Method 320 as an alternative to Method 18 for demonstrating that a vent
is not a process vent. Method 320 is a broadly applicable method that
is acceptable in this application because it is self-validating.

YYY. Secondary Aluminum Production (Subpart RRR) Part 63

    The secondary aluminum production NESHAP would be revised to allow
Method 26 as an alternative to Method 26A in Sec.  63.1511(c)(9) for
determining hydrochloric acid (HCl) concentration. Method 26 is the
non-isokinetic version of Method 26A and is being allowed in all cases
where non-isokinetic sampling for HCl is performed.

ZZZ. Manufacturing of Nutritional Yeast (Subpart CCCC) Part 63

    Table 2 in the manufacturing of nutritional yeast NESHAP would be
revised to delete the requirements to use Methods 1, 2, 3, and 4 when
measuring VOC by Method 25A. Methods 1, 2, 3, and 4 are required for
particulate matter sampling and the VOC in this application is normally
not particulate in nature.

AAAA. Petroleum Refineries: Catalytic Cracking Units, Catalytic
Reforming Units, and Sulfur Recovery Units (Subpart UUUU) Part 63

    Table 4 in the petroleum refineries: catalytic cracking units,
catalytic reforming units, and sulfur recovery units NESHAP would be
revised to allow Method 320 as an alternative to Method 18 for
determining control device efficiency for organic compounds. Method 320
is a broadly applicable method that is acceptable in this application
because it is self-validating.

BBBB. Stationary Reciprocating Internal Combustion Engines (Subpart
ZZZZ) Part 63

    Table 4 in the stationary reciprocating internal combustion engines
NESHAP would be revised to clarify that a heated probe is not necessary
when using ASTM D6522 to measure oxygen or carbon dioxide
concentrations because condensed moisture is normally not an
interferent to these compounds. The requirement to use Method 1 or 1A
for sampling site and sampling point location would be deleted because
the exhausts are small and have temporally varying emissions.
Instruction would be added to sample at the centroid of the stack.

CCCC. Method 306 of Appendix A of Part 63

    Method 306 would be revised to remove references to two figures
that do not exist and to add clarifying information about the
conditions under which ICP is appropriate for sample analysis.
Alternative mercury-free thermometers also would be added as
alternatives to mercury-in-glass thermometers to facilitate the use of
mercury-free products.

DDDD. Method 306A of Appendix A of Part 63

    In Method 306A, information would be added to clarify the
conditions under which sample filtering is required.

EEEE. Methods 308, 315, and 316 of Appendix A of Part 63

    In Methods 308, 315, and 316, calibrating a temperature sensor
against a thermometer equivalent to a mercury-in-glass thermometer
would be added as an alternative to mercury-in-glass thermometers to
facilitate the use of non-mercury products. Alternative mercury-free
thermometers would be added as an alternative to using a mercury-in-
glass thermometers.

FFFF. Method 321 of Appendix A of Part 63

    In Method 321, the term for dilution factor in the calculations
would be clarified.

IV. Request for Comments

    The agency is reviewing the adequacy of its current test methods in
regard to sampling site selection and sampling point requirements.
Emission gas flow patterns affect representative testing, and this is
not addressed in many EPA test methods. Method 1 contains provisions
for sampling point locations, traversing, and determination of cyclonic
flow, and Method 7E was revised to contain procedures for determining
gaseous stratification in 2006. However, there are no requirements in
most methods to follow the Method 1 or 7E procedures.
    Method 7E allows stratification to be assessed through either a 3-
or 12-point traverse while measuring variations in either a pollutant
or diluent concentration. The degree of stratification determines
whether a single-point, 3-, or 12-point traverse is used for the test.
There are no requirements to check for cyclonic flow in Method 7E.
    We have information that suggests deficiencies exist in the 3-point
test in a number of cases and that at least a 5-point, dual axis test
should be required. A summary of this information has been included in
the regulatory docket. We are also reconsidering the appropriateness of
a diluent gas for the test instead of the regulated pollutant.
    In this proposed rule, we would update the General Provisions of
Parts 60, 61, and 63 to include evaluations of gas stratification and
cyclonic flow with all compliance tests. The agency solicits your
comments and data to aid in establishing better procedures.

V. Statutory and Executive Order Reviews

A. Executive Order 12866: Regulatory Planning and Review and Executive
Order 13563: Improving Regulation and Regulatory Review

    This action is not a ``significant regulatory action'' under the
terms of Executive Order (EO) 12866 (58 FR 51735, October 4, 1993) and
is therefore not subject to review under Executive Orders 12866 and
13563 (76 FR 3821, January 21, 2011).

B. Paperwork Reduction Act

    This action does not impose an information collection burden under
the provisions of the Paperwork Reduction Act, 44 U.S.C. 3501 et seq.
Burden is defined at 5 CFR 1320.3(b). The amendments being proposed in
this action to the test methods and testing regulations do not add
information collection requirements but make needed corrections and
updates to existing testing methodology.

C. Regulatory Flexibility Act

    The Regulatory Flexibility Act (RFA) generally requires an agency
to prepare a regulatory flexibility analysis of any rule subject to
notice and comment rulemaking requirements under the Administrative
Procedure Act or any other statute unless the agency certifies that the
rule will not have a significant economic impact on a substantial
number of small entities. Small entities include small businesses,
small organizations, and small governmental jurisdictions.
    For purposes of assessing the impacts of this rule on small
entities, small entity is defined as (1) A small business as defined by
the Small Business Administration's (SBA) regulations at 13 CFR
121.201; (2) a small governmental jurisdiction that is a government of
a city, county, town, school district or special district with a
population of less than 50,000; and (3) a small organization that is
any not-for-profit enterprise which is independently owned and operated
and is not dominant in its field.
    After considering the economic impacts of this rule on small
entities, I certify that this action will not have a significant
economic impact on a substantial number of small entities. This
proposed rule will neither impose emission measurement requirements
beyond those specified in the current regulations, nor will it change
any emission standard. This proposed action will not impose any new
requirements on small entities. We continue to be interested in the
potential impacts of the proposed rule on small entities and welcome
comments on issues related to such impacts.

D. Unfunded Mandates Reform Act

    This action contains no Federal mandates under the provisions of
Title II of the Unfunded Mandates Reform Act of 1995 (UMRA), 2 U.S.C.
1531-1538 for State, local, or tribal governments or the private
sector. The action imposes no enforceable duty on any State, local or
tribal governments or the private sector. Therefore, this action is not
subject to the requirements of sections 202 or 205 of the UMRA. This
action is also not subject to the requirements of section 203 of UMRA
because it contains no regulatory requirements that might significantly
or uniquely affect small governments. This action corrects and updates
current testing regulations and does not add any new requirements.

E. Executive Order 13132: Federalism

    This action does not have federalism implications. It will not have
substantial direct effects on the States, on the relationship between
the national government and the States, or on the distribution of power
and responsibilities among the various levels of government, as
specified in Executive Order 13132. This action simply corrects minor
errors and makes updates to current source testing methods to maintain
their original intent. Thus, Executive Order 13132 does not apply to
this action. In the spirit of Executive Order 13132, and consistent
with the EPA policy to promote communications between the EPA and State
and local governments, the EPA specifically solicits comment on this
proposed rule from State and local officials.

F. Executive Order 13175: Consultation and Coordination With Indian
Tribal Governments

    This action does not have tribal implications, as specified in
Executive Order 13175 (65 FR 67249, November 9, 2000). This proposed
rule imposes no requirements on tribal governments. This action simply
corrects and updates current testing regulations. Thus, Executive Order
13175 does not apply to this action. The EPA specifically solicits
additional comment on this proposed action from tribal officials.

G. Executive Order 13045: Protection of Children From Environmental
Health and Safety Risks

    The EPA interprets EO 13045 (62 FR 19885, April 23, 1997) as
applying only to those regulatory actions that concern health or safety
risks, such that the analysis required under section 5-501 of the EO
has the potential to influence the regulation. This action is not
subject to EO 13045 because it does not establish an environmental
standard intended to mitigate health or safety risks.

H. Executive Order 13211: Actions Concerning Regulations That
Significantly Affect Energy Supply, Distribution, or Use

    This action is not subject to Executive Order 13211 (66 FR 28355
(May 22, 2001)), because it is not a significant regulatory action
under Executive Order 12866.

I. National Technology Transfer and Advancement Act

    Section 12(d) of the National Technology Transfer and Advancement
Act of 1995 (``NTTAA''), Public Law 104-113 (15 U.S.C. 272 note)
directs the EPA to use voluntary consensus standards in its regulatory
activities unless to do so would be inconsistent with applicable law or
otherwise impractical. Voluntary consensus standards are technical
standards (e.g., materials specifications, test methods, sampling
procedures, and business practices) that are developed or adopted by
voluntary consensus standards bodies. NTTAA directs the EPA to provide
Congress, through OMB, explanations when the Agency decides not to use
available and applicable voluntary consensus standards.
    This proposed rulemaking involves technical standards. The EPA
proposes to use ASTM D975-076, developed and adopted by the American
Society for Testing and Materials (ASTM). This standard may be obtained
from ASTM at 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken,
PA 19428-2959. ASTM D975-076 has been determined to be at least as
stringent as currently required ASTM D396 for defining ``distillate
oil.'' ASTM D975-076 is required in some State permits for this purpose
and end users have asked that it be allowed as an alternative to D396
under 40 CFR 60.41c.

J. Executive Order 12898: Federal Actions To Address Environmental
Justice in Minority Populations and Low-Income Populations

    Executive Order (EO) 12898 (59 FR 7629 (Feb. 16, 1994)) establishes
Federal executive policy on environmental justice. Its main provision
directs Federal agencies, to the greatest extent practicable and
permitted by law, to make environmental justice part of their mission
by identifying and addressing, as appropriate, disproportionately high

and adverse human health or environmental effects of their programs,
policies, and activities on minority populations and low-income
populations in the United States.
    The EPA has determined that this proposed rule will not have
disproportionately high and adverse human health or environmental
effects on minority or low-income populations because it does not
affect the level of protection provided to human health or the
environment. This rule corrects and updates current testing regulations
and does not cause emission increases from regulated sources.

Revisions to Test Methods and Testing Regulations

List of Subjects in 40 CFR Parts 51, 60, 61, and 63

    Environmental protection, Air pollution control, Test methods and
procedures, and Performance specifications.

    Dated: November 29, 2011.
Lisa P. Jackson,
Administrator.

    For the reasons stated in the preamble, the Environmental
Protection Agency proposes to amend title 40, chapter I of the Code of
Federal Regulations as follows:

PART 51--REQUIREMENTS FOR PREPARATION, ADOPTION, AND SUBMITTAL OF
IMPLEMENTATION PLANS

    1. The authority citation for part 51 continues to read as follows:

    Authority:  23 U.S.C. 101; 42 U.S.C. 7401-7671q.

    2. Amend Appendix M by revising section 4a. to read as follows:

Appendix M to Part 51--Recommended Test Methods for State
Implementation Plans

* * * * *
    4. * * *
    a. The source owner, operator, or representative of the tested
facility shall obtain an audit sample, if commercially available,
from an AASP for each test method used for regulatory compliance
purposes. No audit samples are required for the following test
methods: Methods 3A and 3C of Appendix A-3 of Part 60, Methods 6C,
7E, 9, and 10 of Appendix A-4 of Part 60, Methods 18 and 19 of
Appendix A-6 of Part 60, Methods 20, 22, and 25A of Appendix A-7 of
Part 60, and Methods 303, 318, 320, and 321 of Appendix A of Part
63. If multiple sources at a single facility are tested during a
compliance test event, only one audit sample is required for each
method used during a compliance test. The compliance authority
responsible for the compliance test may waive the requirement to
include an audit sample if they believe that an audit sample is not
necessary. ``Commercially available'' means that two or more
independent AASPs have blind audit samples available for purchase.
If the source owner, operator, or representative cannot find an
audit sample for a specific method, the owner, operator, or
representative shall consult the EPA Web site at the following URL,
http://www.epa.gov/ttn/emc, to confirm whether there is a source
that can supply an audit sample for that method. If the EPA Web site
does not list an available audit sample at least 60 days prior to
the beginning of the compliance test, the source owner, operator, or
representative shall not be required to include an audit sample as
part of the quality assurance program for the compliance test. When
ordering an audit sample, the source owner, operator, or
representative shall give the sample provider an estimate for the
concentration of each pollutant that is emitted by the source or the
estimated concentration of each pollutant based on the permitted
level and the name, address, and phone number of the compliance
authority. The source owner, operator, or representative shall
report the results for the audit sample along with a summary of the
emission test results for the audited pollutant to the compliance
authority and shall report the results of the audit sample to the
AASP. The source owner, operator, or representative shall make both
reports at the same time and in the same manner or shall report to
the compliance authority first and report to the AASP. If the method
being audited is a method that allows the samples to be analyzed in
the field and the tester plans to analyze the samples in the field,
the tester may analyze the audit samples prior to collecting the
emission samples provided a representative of the compliance
authority is present at the testing site. The tester may request and
the compliance authority may grant a waiver to the requirement that
a representative of the compliance authority must be present at the
testing site during the field analysis of an audit sample. The
source owner, operator, or representative may report the results of
the audit sample to the compliance authority and then report the
results of the audit sample to the AASP prior to collecting any
emission samples. The test protocol and final test report shall
document whether an audit sample was ordered and utilized and the
pass/fail results as applicable.
* * * * *
    3. Amend Method 201A of Appendix M as follows:
    a. By revising sections 8.3.4(b) and <IP_ADDRESS>.
    b. By revising sections <IP_ADDRESS> and <IP_ADDRESS>(a).
    c. By revising the introductory text of section 10.1.
    d. By revising section 11.2.1.
    e. By revising Equation 9 in section 12.5.
    f. By removing section 10.5.
    g. By removing the term ``Vb'' and its definition from
section 12.1.

Method 201A--Determination of PM10 and PM2.5
Emissions From Stationary Sources (Constant Sampling Rate Procedure)

* * * * *
    8.3.4 * * *
    (b) The appropriate nozzle to maintain the required gas sampling
rate for the velocity pressure range and isokinetic range. If the
isokinetic range cannot be met (e.g., batch processes, extreme
process flow or temperature variation), void the sample or use
methods subject to the approval of the Administrator to correct the
data. The acceptable variation from isokinetic sampling is 80 to 120
percent and no more than 100  21 percent (2 out of 12 or
5 out of 24) sampling points outside of this criteria.
* * * * *
    <IP_ADDRESS> Preliminary traverse. You must use an S-type pitot tube
with a conventional thermocouple to conduct the traverse. Conduct
the preliminary traverse as close as possible to the anticipated
testing time on sources that are subject to hour-by-hour gas flow
rate variations of approximately  20 percent and/or gas
temperature variations of approximately  10 [deg]C
( 18; [deg]F). (Note: You should be aware that these
variations can cause errors in the cyclone cut diameters and the
isokinetic sampling velocities.)
* * * * *
    <IP_ADDRESS> Probe blockage factor. You must use Equation 26 to
calculate an average probe blockage correction factor
(bf) if the diameter of your stack or duct is between
25.7 and 36.4 inches for the combined PM2.5/
PM10 sampling head and pitot and between 18.8 and 26.5
inches for the PM2.5 cyclone and pitot. A probe blockage
factor is calculated because of the flow blockage caused by the
relatively large cross-sectional area of the cyclone sampling head,
as discussed in Section <IP_ADDRESS> and illustrated in Figures 8 and 9
of Section 17. You must determine the cross-sectional area of the
cyclone head you use and determine its stack blockage factor. (Note:
Commercially-available sampling heads (including the PM10
cyclone, PM2.5 cyclone, pitot and filter holder) have a
projected area of approximately 31.2 square inches when oriented
into the gas stream. As the probe is moved from the outermost to the
innermost point, the amount of blockage that actually occurs ranges
from approximately 13 square inches to the full 31.2 inches plus the
blockage caused by the probe extension. The average cross-sectional
area blocked is 22 square inches.
* * * * *
    <IP_ADDRESS> * * *
    (a) Container 1, Less than or equal to PM2.5
micrometer filterable particulate. Use tweezers and/or clean
disposable surgical gloves to remove the filter from the filter
holder. Place the filter in the Petri dish that you labeled with the
test identification and Container 1. Using a dry brush and/
or a sharp-edged blade, carefully transfer any PM and/or filter
fibers that adhere to the filter holder gasket or filter support
screen to the Petri dish. Seal the container. This container holds
particles less than or equal to 2.5 micrometers that are caught on
the in-stack

filter. (Note: If the test is conducted for PM10 only,
then Container 1 would be for less than or equal to
PM10 micrometer filterable particulate.)
* * * * *
    10.1 Gas Flow Velocities. You must use an S-type pitot tube that
meets the required EPA specifications (EPA Publication 600/4-77-
0217b) during these velocity measurements. (Note: If, as specified
in Section <IP_ADDRESS>, testing is performed in stacks less than 26.5
inches in diameter, testers may use a standard pitot tube according
to the requirements in Method 1 or 2 of Appendix A-3 to Part 60.)
You must also complete the following:
* * * * *
    11.2.1 Container 1, Less than or Equal to
PM2.5 Micrometer Filterable Particulate. Transfer the
filter and any loose particulate from the sample container to a
tared weighing dish or pan that is inert to solvent or mineral
acids. Desiccate for 24 hours in a desiccator containing anhydrous
calcium sulfate. Weigh to a constant weight and report the results
to the nearest 0.1 mg. (See Section 3.0 for a definition of constant
weight.) If constant weight requirements cannot be met, data should
be reported and flagged as a minimum value. (Note: Regardless of the
stack temperature, you are not required to speciate the Method 201A
nozzle, front half or in-stack filter sample into organic and
inorganic fractions. Neither Method 17 nor 201A require separate
analysis of the filter for inorganic and organic PM. Since the in-
stack filter samples collected at <=30 [deg]C (85 [deg]F) may
include both filterable insoluble particulate and condensable
particulate, the filter should be weighed after desiccation but not
extracted since insoluble particulate will not be recovered from the
extraction.)
* * * * *
    12.5 * * *
    For Nre greater than or equal to 3,162:
    [GRAPHIC] [TIFF OMITTED] TP09JA12.018

* * * * *
    4. Amend Method 202 of Appendix M as follows:
    a. By revising the introductory text in section <IP_ADDRESS>.
    b. By revising section 11.2.2.
    c. By revising Figures 2, 3, 4, 5, and 6 in section 18.0.

Method 202--Dry Impinger Method for Determining Condensable Particulate
Emissions from Stationary Sources

* * * * *
    <IP_ADDRESS> If you choose to conduct a pressurized nitrogen purge on
the complete CPM sampling train, you may quantitatively transfer the
water collected in the condenser and the water dropout impinger to
the backup impinger as an alternative to replacing the short stem
impinger insert with a long stem insert prior to purging the
sampling train. You must measure the water combined in the backup
impinger and record the volume or weight as part of the moisture
collected during sampling as specified in Section <IP_ADDRESS>.
* * * * *
    11.2.2 CPM Container 1, Aqueous Liquid Impinger
Contents. Analyze the water soluble CPM in Container 1 as
described in this section. Place the contents of Container
1 into a separatory funnel. Add approximately 30 ml of
hexane to the funnel, mix well, and pour off the upper organic
phase. Repeat this procedure twice with 30 ml of hexane each time
combining the organic phase from each extraction. Each time, leave a
small amount of the organic/hexane phase in the separatory funnel,
ensuring that no water is collected in the organic phase. This
extraction should yield about 90 ml of organic extract. Combine the
organic extract from Container 1 with the organic train
rinse in Container 2.
* * * * *
BILLING CODE 6560-50-P

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* * * * *
BILLING CODE 6560-50-C

PART 60--STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES

    5. The authority citation for part 60 continues to read as follows:

    Authority:  42 U.S.C. 7401, et seq.

    6. Amend Sec.  60.8 by revising paragraph (g)(1) and adding new
paragraphs (h) and (i) to read as follows:

Sec.  60.8  Performance tests.

* * * * *
    (g) * * *
    (1) The source owner, operator, or representative of the tested
facility shall obtain an audit sample, if commercially available, from
an AASP for each test method used for regulatory compliance purposes.
No audit samples are required for the following test methods: Methods
3A and 3C of Appendix A-3 of Part 60, Methods 6C, 7E, 9, and 10 of
Appendix A-4 of Part 60, Methods 18 and 19 of Appendix A-6 of Part 60,
Methods 20, 22, and 25A of Appendix A-7 of Part 60, and Methods 303,
318, 320, and 321 of Appendix A of Part 63. If multiple sources at a
single facility are tested during a compliance test event, only one
audit sample is required for each method used during a compliance test.
The compliance authority responsible for the compliance test may waive
the requirement to include an audit sample if they believe that an
audit sample is not necessary. ``Commercially available'' means that
two or more independent AASPs have blind audit samples available for
purchase. If the source owner, operator, or representative cannot find
an audit sample for a specific method, the owner, operator, or
representative shall consult the EPA Web site at the following URL,
www.epa.gov/ttn/emc, to confirm whether there is a source that can
supply an audit sample for that method. If the EPA Web site does not
list an available audit sample at least 60 days prior to the beginning
of the compliance test, the source owner, operator, or representative
shall not be required to include an audit sample as part of the quality
assurance program for the compliance test. When ordering an audit
sample, the source owner,

operator, or representative shall give the sample provider an estimate
for the concentration of each pollutant that is emitted by the source
or the estimated concentration of each pollutant based on the permitted
level and the name, address, and phone number of the compliance
authority. The source owner, operator, or representative shall report
the results for the audit sample along with a summary of the emission
test results for the audited pollutant to the compliance authority and
shall report the results of the audit sample to the AASP. The source
owner, operator, or representative shall make both reports at the same
time and in the same manner or shall report to the compliance authority
first and then report to the AASP. If the method being audited is a
method that allows the samples to be analyzed in the field and the
tester plans to analyze the samples in the field, the tester may
analyze the audit samples prior to collecting the emission samples
provided a representative of the compliance authority is present at the
testing site. The tester may request, and the compliance authority may
grant, a waiver to the requirement that a representative of the
compliance authority must be present at the testing site during the
field analysis of an audit sample. The source owner, operator, or
representative may report the results of the audit sample to the
compliance authority and report the results of the audit sample to the
AASP prior to collecting any emission samples. The test protocol and
final test report shall document whether an audit sample was ordered
and utilized and the pass/fail results as applicable.
* * * * *
    (h) Unless otherwise specified in the applicable subpart, each test
location must be verified to be free of cyclonic flow and evaluated for
the existence of emission gas stratification and the required number of
sampling traverse points. If other procedures are not specified in the
applicable subpart to the regulations, use the appropriate procedures
in Method 1 to check for cyclonic flow and Method 7E to evaluate
emission gas stratification and selection of sampling points.
    (i) Whenever the use of multiple calibration gases is required by a
test method, performance specification, or quality assurance procedure
in a Part 60 standard or appendix, Method 205 of 40 CFR part 51,
Appendix M, ``Verification of Gas Dilution Systems for Field Instrument
Calibrations,'' may be used.
    7. Amend Sec.  60.13 by revising paragraph (d)(1) to read as
follows:

Sec.  60.13  Monitoring requirements.

* * * * *
    (d)(1) Owners and operators of a CEMS installed in accordance with
the provisions of this part, must check the zero (or low level value
between 0 and 20 percent of span value) and span (50 to 100 percent of
span value) calibration drifts at least once daily in accordance with a
written procedure. The zero and span must, at a minimum, be adjusted
whenever either the 24-hour zero drift or the 24-hour span drift
exceeds two times the limit of the applicable performance specification
in Appendix B of this part. The system must allow the amount of the
excess zero and span drift to be recorded and quantified whenever
specified. Owners and operators of a COMS installed in accordance with
the provisions of this part must check the zero and upscale (span)
calibration drifts at least once daily. For a particular COMS, the
acceptable range of zero and upscale calibration materials is defined
in the applicable version of PS-1 in Appendix B of this part. For a
COMS, the optical surfaces, exposed to the effluent gases, must be
cleaned before performing the zero and upscale drift adjustments,
except for systems using automatic zero adjustments. The optical
surfaces must be cleaned when the cumulative automatic zero
compensation exceeds 4 percent opacity.
* * * * *
    8. Amend Sec.  60.17 by revising paragraphs (e) and (e)(1) to read
as follows:

Sec.  60.17  Incorporations by reference.

* * * * *
    (e) The following material is available for purchase from the Water
Environment Federation, 2626 Pennsylvania Avenue NW., Washington, DC
20037.
    (1) Method 209A, Total Residue Dried at 103-105 [deg]C, in Standard
Methods for the Examination of Water and Wastewater, 20th Edition,
1999, IBR approved February 25, 1985, for Sec.  60.683(b).
* * * * *
    9. Amend Sec.  60.46b by revising paragraphs (f)(1)(ii) and (h)(1)
and (2) to read as follows:

Sec.  60.46b  Compliance and performance test methods and procedures
for particulate matter and nitrogen oxides.

* * * * *
    (f) * * *
    (1) * * *
    (ii) Method 7E of Appendix A of this part or Method 320 of Appendix
A of Part 63 shall be used to determine the NOX
concentrations. Method 3A or 3B of Appendix A of this part shall be
used to determine O2 concentration.
* * * * *
    (h) * * *
    (1) Conduct an initial performance test as required under Sec.
60.8 over a minimum of 24 consecutive steam generating unit operating
hours at maximum heat input capacity to demonstrate compliance with the
NOX emission standards under Sec.  60.44b using Method 7,
7A, or 7E of Appendix A of this part, Method 320 of Appendix A of Part
63, or other approved reference methods; and
    (2) Conduct subsequent performance tests once per calendar year or
every 400 hours of operation (whichever comes first) to demonstrate
compliance with the NOX emission standards under Sec.
60.44b over a minimum of 3 consecutive steam generating unit operating
hours at maximum heat input capacity using Method 7, 7A, or 7E of
Appendix A of this part, Method 320 of Appendix A of Part 63, or other
approved reference methods.
* * * * *
    10. Amend Sec.  60.47b by revising paragraph (b)(2) to read as
follows:

Sec.  60.47b  Emission monitoring for sulfur dioxide.

* * * * *
    (b) * * *
    (2) Measuring SO2 according to Method 6B of Appendix A
of this part at the inlet or outlet to the SO2 control
system. An initial stratification test is required to verify the
adequacy of the sampling location for Method 6B of Appendix A of this
part. The stratification test shall consist of three paired runs of a
suitable SO2 and CO2 measurement train operated
at the candidate location and a second similar train operated according
to the procedures in Section 3.2 and the applicable procedures in
Section 7 of Performance Specification 2. Method 6B of Appendix A of
this part, Method 6A of Appendix A of this part, or a combination of
Methods 6 and 3 or 3B of Appendix A of this part or Methods 6C or
Method 320 of Appendix A of Part 63 and 3A of Appendix A of this part
are suitable measurement techniques. If Method 6B of Appendix A of this
part is used for the second train, sampling time and timer operation
may be adjusted for the stratification test as long as an adequate
sample volume is collected; however, both sampling trains are to be
operated similarly. For the location to be adequate for Method 6B of
Appendix A of this part, 24-hour tests, the mean of the absolute

difference between the three paired runs must be less than 10 percent.
* * * * *
    11. Amend Sec.  60.51c by revising the definition of ``Medical/
infectious waste'' to read as follows:

Sec.  60.51c  Definitions.

* * * * *
    Medical/infectious waste means any waste generated in the
diagnosis, treatment, or immunization of human beings or animals, in
research pertaining thereto, or in the production or testing of
biologicals that are listed in paragraphs (1) through (7) of this
definition. The definition of medical/infectious waste does not include
hazardous waste identified or listed under the regulations in part 261
of this chapter; household waste, as defined in Sec.  261.4(b)(1) of
this chapter; ash from incineration of medical/infectious waste, once
the incineration process has been completed; human corpses, remains,
and anatomical parts that are intended for interment or cremation; and
domestic sewage materials identified in Sec.  261.4(a)(1) of this
chapter.
* * * * *
    12. Amend Sec.  60.84 by revising the equation in paragraph (d) to
read as follows:

Sec.  60.84  Emission monitoring.

* * * * *

    (d) * * *

Es = (Cs S)/[0.265 - (0.0126 %O2) - (A
%CO2)]
* * * * *
    13. Amend Sec.  60.154 by revising paragraph (b)(5) to read as
follows:

Sec.  60.154  Test methods and procedures.

* * * * *
    (b) * * *
    (5) Samples of the sludge charged to the incinerator shall be
collected in nonporous jars at the beginning of each run and at
approximately 1-hour intervals thereafter until the test ends; and
``2540 G. Total, Fixed, and Volatile Solids in Solid and Semisolid
Samples, in Standard Methods for the Examination of Water and
Wastewater, 20th Edition, 1998'' (incorporated by reference--see Sec.
60.17) shall be used to determine dry sludge content of each sample
(total solids residue), except that:
* * * * *
    14. Amend Sec.  60.284 by revising the equation in paragraph (c)(3)
to read as follows:

Sec.  60.284  Monitoring of emissions and operations.

* * * * *
    (c) * * *
    (3) * * *

Ccorr = Cmeas x (21 - X)/(21 - Y)
* * * * *
    15. Amend Sec.  60.335 by revising two terms for the equation in
paragraph (b)(1)to read as follows:

Sec.  60.335  Test methods and procedures.

* * * * *
    (b) * * *
    (1) * * *
    Pr = reference combustor inlet absolute pressure at
101.3 kilopascals ambient pressure. Alternatively, you may use 760 mm
Hg (29.92 in Hg),
    Po = observed combustor inlet absolute pressure at test,
mm Hg. Alternatively, you may use the barometric pressure for the date
of the test,
* * * * *
    16. Amend 60.374 by revising paragraphs (b)(1), (b)(2), and (c)(2)
to read as follows:

Sec.  60.374  Test methods and procedures.

* * * * *
    (b) * * *
    (1) Method 12 or Method 29 shall be used to determine the lead
concentration (CPb) and, if applicable, the volumetric flow
rate (Qsda) of the effluent gas. The sampling time and
sample volume for each run shall be at least 60 minutes and 0.85 dscm
(30 dscf).
    (2) When different operations in a three-process operation facility
are ducted to separate control devices, the lead emission concentration
(C) from the facility shall be determined as follows:
[GRAPHIC] [TIFF OMITTED] TP09JA12.024

Where:

C = Concentration of lead emissions for the entire facility, mg/dscm
(gr/dscf).
Ca = Concentration of lead emissions from facility ``a'',
mg/dscm (gr/dscf).
Qsda = Volumetric flow rate of effluent gas from facility
``a'', dscm/hr (dscf/hr).
N = Total number of control devices to which separate operations in
the facility are ducted.
* * * * *
    (c) * * *
    (2) Method 12 or Method 29 shall be used to determine the lead
concentration (CPb) and the volumetric flow rate
(Qsd) of the effluent gas. The sampling time and sample
volume for each run shall be at least 60 minutes and 0.85 dscm (30
dscf).
* * * * *
    17. Amend Sec.  60.382 by revising paragraph (a)(1) to read as
follows:

Sec.  60.382  Standard for particulate matter.

* * * * *
    (a) * * *
    (1) Contain particulate matter in excess of 0.05 grams per dry
standard cubic meter (0.05 g/dscm).
* * * * *
    18. Amend Sec.  60.386 by revising paragraph (b)(2) to read as
follows:

Sec.  60.386  Test methods and procedures.

* * * * *
    (b) * * *
    (2) Method 9 and the procedures in Sec.  60.11 shall be used to
determine opacity from stack emissions and process fugitive emissions.
The observer shall read opacity only when emissions are clearly
identified as emanating solely from the affected facility being
observed. A single visible emission observer may conduct visible
emission observations for up to three fugitive, stack, or vent emission
points within a 15-second interval. This option is subject to the
following limitations:
    (i) No more than three emission points are read concurrently;
    (ii) All three emission points must be within a 70[deg] viewing
sector or angle in front of the observer such that the proper sun
position can be maintained for all three points; and
    (iii) If an opacity reading for any one of the three emission
points is within 5 percent opacity of the application standard, then
the observer must stop taking readings for the other two points and
continue reading just that single point.
* * * * *
    19. Amend Sec.  60.472 by revising paragraph (a)(1)(ii) to read as
follows:

Sec.  60.472  Standards for particulate matter.

* * * * *
    (a) * * *
    (1) * * *
    (ii) 0.4 kg/Mg (0.8 lb/ton) of saturated felt or smooth-surfaced
roll roofing produced;
* * * * *
    20. Amend Sec.  60.660 by revising paragraph (c)(4) to read as
follows:

Sec.  60.660  Applicability and designation of affected facility.

* * * * *
    (c) * * *
    (4) Each affected facility that has a total resource effectiveness
(TRE) index value greater than 8.0 is exempt from all provisions of
this subpart except for Sec. Sec.  60.662; 60.664 (e), (f), and (g);
and 60.665 (h) and (l).
* * * * *

    21. Amend Sec.  60.665 by revising paragraphs (h)(2) and (3) to
read as follows:

Sec.  60.665  Reporting and recordkeeping requirements.

* * * * *
    (h) * * *
    (2) Any recalculation of the TRE index value performed pursuant to
Sec.  60.664(g); and
    (3) The results of any performance test performed pursuant to the
methods and procedures required by Sec.  60.664(e).
* * * * *
    22. Amend Subpart IIII by revising Table 7 to read as follows:

Table 7 to Subpart IIII of Part 60--Requirements for Performance Tests for Stationary CI ICE With a Displacement
                                          of >= 30 Liters Per Cylinder
     [As stated in Sec.   60.4213, you must comply with the following requirements for performance tests for
                       stationary CI ICE with a displacement of >= 30 liters per cylinder]
----------------------------------------------------------------------------------------------------------------
                                                                                According to the
              Each                Complying with the       You must              Using             following
                                     requirement to                                              requirements
----------------------------------------------------------------------------------------------------------------
1. Stationary CI internal         a. Reduce NOX       i. Measure NOX at   (1) Method 7E of    (a) NOX
 combustion engine with a          emissions by 90     the centroid of     40 CFR part 60,     concentration
 displacement of >= 30 liters      percent or more.    the exhaust at      Appendix A,         must be at 15
 per cylinder.                                         the inlet and       Method 320 of 40    percent O2, dry
                                                       outlet of the       CFR part 63,        basis. Results of
                                                       control device;     Appendix A, or      this test consist
                                                                           ASTM D 6348-03      of the average of
                                                                           (incorporated by    the three 1-hour
                                                                           reference, see      or longer runs.
                                                                           Sec.   60.17).
                                                      ii. Measure O2 at   (2) Method 3, 3A,   (b) Measurements
                                                       the inlet and       or 3B of 40 CFR     to determine O2
                                                       outlet of the       part 60, Appendix   concentration
                                                       control device;     A.                  must be made at
                                                       and,                                    the same time as
                                                                                the measurements
                                                                                for NOX
                                                                                concentration.
                                                      iii. If necessary,  (3) Method 4 of 40  (c) Measurements
                                                       measure moisture    CFR part 60,        to determine
                                                       content at the      Appendix A,         moisture content
                                                       inlet and outlet    Method 320 of 40    must be made at
                                                       of the control      CFR part 63,        the same time as
                                                       device.             Appendix A, or      the measurements
                                                                           ASTM D 6348-03      for NOX
                                                                           (incorporated by    concentration.
                                                                           reference, see
                                                                           Sec.   60.17).
                                  b. Limit the        i. Measure NOX at   (1) Method 7E of    (a) If using a
                                   concentration of    the centroid of     40 CFR part 60,     control device,
                                   NOX in the          the exhaust of      Appendix A,         the sampling site
                                   stationary CI       the stationary      Method 320 of 40    must be located
                                   internal            internal            CFR part 63,        at the outlet of
                                   combustion engine   combustion          Appendix A, or      the control
                                   exhaust.            engine;             ASTM D 6348-03      device. NOX
                                                                           (incorporated by    concentration
                                                                           reference, see      must be at 15
                                                                           Sec.   60.17).      percent O2, dry
                                                                                basis. Results of
                                                                                this test consist
                                                                                of the average of
                                                                                the three 1-hour
                                                                                or longer runs.
                                                      ii. Determine the   (2) Method 3, 3A,   (b) Measurements
                                                       O2 concentration    or 3B of 40 CFR     to determine O2
                                                       of the stationary   part 60, Appendix   concentration
                                                       internal            A.                  must be made at
                                                       combustion engine                       the same time as
                                                       exhaust at the                          the measurement
                                                       sampling port                           for NOX
                                                       location; and,                          concentration.
                                                      iii. If necessary,  (3) Method 4 of 40  (c) Measurements
                                                       measure moisture    CFR part 60,        to determine
                                                       content of the      Appendix A,         moisture content
                                                       stationary          Method 320 of 40    must be made at
                                                       internal            CFR part 63,        the same time as
                                                       combustion engine   Appendix A, or      the measurement
                                                       exhaust at the      ASTM D 6348-03      for NOX
                                                       sampling port       (incorporated by    concentration.
                                                       location.           reference, see
                                                                           Sec.   60.17).
                                  c. Reduce PM        i. Select the       (1) Method 1 or 1A  (a) Sampling sites
                                   emissions by 60     sampling port       of 40 CFR part      must be located
                                   percent or more.    location and the    60, Appendix A.     at the inlet and
                                                       number of                               outlet of the
                                                       traverse points;                        control device.
                                                      ii. Measure O2 at   (2) Method 3, 3A,   (b) Measurements
                                                       the inlet and       or 3B of 40 CFR     to determine O2
                                                       outlet of the       part 60, Appendix   concentration
                                                       control device;     A.                  must be made at
                                                                                the same time as
                                                                                the measurements
                                                                                for PM
                                                                                concentration.
                                                      iii. If necessary,  (3) Method 4 of 40  (c) Measurements
                                                       measure moisture    CFR part 60,        to determine and
                                                       content at the      Appendix A.         moisture content
                                                       inlet and outlet                        must be made at
                                                       of the control                          the same time as
                                                       device; and                             the measurements
                                                                                for PM
                                                                                concentration.

                                                      iv. Measure PM at   (4) Method 5 of 40  (d) PM
                                                       the inlet and       CFR part 60,        concentration
                                                       outlet of the       Appendix A.         must be at 15
                                                       control device.                         percent O2, dry
                                                                                basis. Results of
                                                                                this test consist
                                                                                of the average of
                                                                                the three 1-hour
                                                                                or longer runs.
                                  d. Limit the        i. Select the       (1) Method 1 or 1A  (a) If using a
                                   concentration of    sampling port       of 40 CFR part      control device,
                                   PM in the           location and the    60, Appendix A.     the sampling site
                                   stationary CI       number of                               must be located
                                   internal            traverse points;                        at the outlet of
                                   combustion engine                                           the control
                                   exhaust.                                                    device.
                                                      ii. Determine the   (2) Method 3, 3A,   (b) Measurements
                                                       O2 concentration    or 3B of 40 CFR     to determine O2
                                                       of the stationary   part 60, Appendix   concentration
                                                       internal            A.                  must be made at
                                                       combustion engine                       the same time as
                                                       exhaust at the                          the measurements
                                                       sampling port                           for PM
                                                       location; and                           concentration.
                                                      iii. If necessary,  (3) Method 4 of 40  (c) Measurements
                                                       measure moisture    CFR part 60,        to determine
                                                       content of the      Appendix A.         moisture content
                                                       stationary                              must be made at
                                                       internal                                the same time as
                                                       combustion engine                       the measurements
                                                       exhaust at the                          for PM
                                                       sampling port                           concentration.
                                                       location;
                                                      iv. Measure PM at   (4) Method 5 of 40  (d) PM
                                                       the exhaust of      CFR part 60,        concentration
                                                       the stationary      Appendix A.         must be at 15
                                                       internal                                percent O2, dry
                                                       combustion                              basis. Results of
                                                       engine.                                 this test consist
                                                                                of the average of
                                                                                the three 1-hour
                                                                                or longer runs.
----------------------------------------------------------------------------------------------------------------

    23. Amend Subpart JJJJ by revising Table 2 to read as follows:

                     Table 2 to Subpart JJJJ of Part 60--Requirements for Performance Tests
  [As stated in Sec.   60.4244, you must comply with the following requirements for performance tests within 10
                          percent of 100 percent peak (or the highest achievable) load]
----------------------------------------------------------------------------------------------------------------
                                                                                According to the
            For each              Complying with the       You must              Using             following
                                     requirement to                                              requirements
----------------------------------------------------------------------------------------------------------------
1. Stationary SI internal         a. limit the        i. Measure NOX at   (1) Method 7E of    (a) If using a
 combustion engine demonstrating   concentration of    the centroid of     40 CFR part 60,     control device,
 compliance according to Sec.      NOX in the          the exhaust of      Appendix A,         the sampling site
 60.4244.                          stationary SI       the stationary      Method D6522-       must be located
                                   internal            internal            00(2005),\a\        at the outlet of
                                   combustion engine   combustion          Method 320 of 40    the control
                                   exhaust.            engine;             CFR part 63,        device. Results
                                                                           Appendix A, or      of this test
                                                                           ASTM D6348-03       consist of the
                                                                           (incorporated by    average of the
                                                                           reference, see      three 1-hour or
                                                                           Sec.   60.17).      longer runs.
                                                      ii. Determine the   (2) Method 3, 3A,   (b) Measurements
                                                       O2 concentration    or 3B \b\ of 40     to determine O2
                                                       of the stationary   CFR part 60,        concentration
                                                       internal            Appendix A or       must be made at
                                                       combustion engine   ASTM Method D6522-  the same time as
                                                       exhaust;            00(2005).\a\        the measurements
                                                                                for NOX
                                                                                concentration.
                                                      iii. Determine the  (3) Method 2 or 19  ..................
                                                       exhaust flow rate   of 40 CFR part
                                                       of the stationary   60.
                                                       internal
                                                       combustion engine
                                                       exhaust; and

                                                      iv. If necessary,   (4) Method 4 of 40  (c) Measurements
                                                       measure moisture    CFR part 60,        to determine
                                                       content of the      Appendix A,         moisture must be
                                                       stationary          Method 320 of 40    made at the same
                                                       internal            CFR part 63,        time as the
                                                       combustion engine   Appendix A, or      measurement for
                                                       exhaust at the      ASTM D6348-03       NOX
                                                       sampling port       (incorporated by    concentration.
                                                       location.           reference, see
                                                                           Sec.   60.17).
                                  b. limit the        i. Sample for CO    (1) Method 10 of    (a) If using a
                                   concentration of    at the centroid     40 CFR part 60,     control device,
                                   CO in the           of the stack of     Appendix A, ASTM    the sampling site
                                   stationary SI       the stationary      Method D6522-       must be located
                                   internal            internal            00(2005),\a\        at the outlet of
                                   combustion engine   combustion          Method 320 of 40    the control
                                   exhaust.            engine;             CFR part 63,        device. Results
                                                                           Appendix A, or      of this test
                                                                           ASTM D 6348-03      consist of the
                                                                           (incorporated by    average of the
                                                                           reference, see      three 1-hour or
                                                                           Sec.   60.17).      longer runs.
                                                      ii. Determine the   (2) Method 3, 3A,   (b) Measurements
                                                       O2 concentration    or 3B \b\ of 40     to determine O2
                                                       of the stationary   CFR part 60,        concentration
                                                       internal            Appendix A or       must be made at
                                                       combustion engine   ASTM Method D6522-  the same time as
                                                       exhaust at the      00(2005).\a\        the measurements
                                                       sampling port                           for CO
                                                       location;                               concentration.
                                                      iii. Determine the  (3) Method 2 or 19  ..................
                                                       exhaust flow rate   of 40 CFR part
                                                       of the stationary   60.
                                                       internal
                                                       combustion engine
                                                       exhaust; and
                                                      iv. If necessary,   (4) Method 4 of 40  (c) Measurements
                                                       measure moisture    CFR part 60,        to determine
                                                       content of the      Appendix A,         moisture must be
                                                       stationary          Method 320 of 40    made at the same
                                                       internal            CFR part 63,        time as the
                                                       combustion engine   Appendix A, or      measurement for
                                                       exhaust at the      ASTM D6348-03       CO concentration.
                                                       sampling port       (incorporated by
                                                       location.           reference, see
                                                                           Sec.   60.17).
                                  c. limit the        i. Measure VOC at   (1) Methods 25A     (a) If using a
                                   concentration of    the centroid of     and 18 of 40 CFR    control device,
                                   VOC in the          the exhaust of      part 60, Appendix   the sampling site
                                   stationary SI       the stationary      A, Method 25A       must be located
                                   internal            internal            with the use of a   at the outlet of
                                   combustion engine   combustion          methane cutter as   the control
                                   exhaust.            engine;             described in 40     device. Results
                                                                           CFR 1065.265,       of this test
                                                                           Method 18 or 40     consist of the
                                                                           CFR part 60,        average of the
                                                                           Appendix A,c d      three 1-hour or
                                                                           Method 320 of 40    longer runs.
                                                                           CFR part 63,
                                                                           Appendix A, or
                                                                           ASTM D6348-03
                                                                           (incorporated by
                                                                           reference, see
                                                                           Sec.   60.17).
                                                      ii. Determine the   (2) Method 3, 3A,   (b) Measurements
                                                       O2 concentration    or 3B \b\ of 40     to determine O2
                                                       of the stationary   CFR part 60,        concentration
                                                       internal            Appendix A or       must be made at
                                                       combustion engine   ASTM Method D6522-  the same time as
                                                       exhaust at the      00(2005).\a\        the measurements
                                                       sampling port                           for VOC
                                                       location;                               concentration.
                                                      iii. Determine the  (3) Method 2 or 19  ..................
                                                       exhaust flow rate   of 40 CFR part
                                                       of the stationary   60.
                                                       internal
                                                       combustion engine
                                                       exhaust; and
                                                      iv. If necessary,   (4) Method 4 of 40  (c) Measurements
                                                       measure moisture    CFR part 60,        to determine
                                                       content of the      Appendix A,         moisture must be
                                                       stationary          Method 320 of 40    made at the same
                                                       internal            CFR part 63,        time as the
                                                       combustion engine   Appendix A, or      measurement for
                                                       exhaust at the      ASTM D6348-03       VOC
                                                       sampling port       (incorporated by    concentration.
                                                       location.           reference, see
                                                                           Sec.   60.17).
----------------------------------------------------------------------------------------------------------------
\a\ ASTM D6522-00 is incorporated by reference; see 40 CFR 60.17. Also, you may petition the Administrator for
  approval to use alternative methods for portable analyzer.
\b\ You may use ASME PTC 19.10-1981, Flue and Exhaust Gas Analyses, for measuring the O2 content of the exhaust
  gas as an alternative to EPA Method 3B.

\c\ You may use EPA Method 18 of 40 CFR part 60, appendix A, provided that you conduct an adequate pre-survey
  test prior to the emissions test, such as the one described in OTM 11 on EPA's Web site (http://www.epa.gov/ttn/emc/prelim/otm11.pdf).
\d\ You may use ASTM D6420-99 (2004), Test Method for Determination of Gaseous Organic Compounds by Direct
  Interface Gas Chromatography/Mass Spectrometry as an alternative to EPA Method 18 for measuring total
  nonmethane organic.

    24. Amend Method 1 of Appendix A-1 to Part 60 by revising Sections
11.2.2, 11.4.1, and Figures 1-1 and 1-2 to read as follows:

Appendix A-1 to Part 60--Test Methods 1 Through 2F

Method 1--Sample and Velocity Traverses From Stationary Sources

* * * * *
    11.2.2 Velocity and Gaseous (Non-Particulate) Traverses. Perform
a stratification test to determine the appropriate number of sample
traverse points. If testing for multiple pollutants or diluents at
the same site, a stratification test using only one pollutant or
diluent satisfies this requirement. A stratification test is not
required for small stacks that are less than 4 inches in diameter.
When the 8- and 2-diameter criterion can be met, the minimum number
of traverse points for the stratification test will be 12. Test for
stratification using a probe of appropriate length to measure the
gas concentration at the required traverse points located according
to Table 1-2. Alternatively (if the 8- and 2-diameter criterion is
met), you may measure the gas concentration at three points on a
line passing through the centroidal area. Space the three points at
16.7, 50.0, and 83.3 percent of the measurement line. Sample for a
minimum of twice the system response time at each traverse point.
Calculate the individual point and mean concentrations. If the
concentration at each traverse point differs from the mean
concentration for all traverse points by no more than: (a)  5.0 percent of the mean concentration; or (b)
0.5 ppm (whichever is less restrictive), the gas stream is
considered unstratified and you may collect samples from a single
point that most closely matches the mean. If the 5.0 percent or 0.5
ppm criterion is not met, but the concentration at each traverse
point differs from the mean concentration for all traverse points by
no more than: (a)  10.0 percent of the mean; or (b)
 1.0 ppm (whichever is less restrictive), the gas stream
is considered to be minimally stratified, and you may take samples
from three points. Space the three points at 16.7, 50.0, and 83.3
percent of the measurement line. Alternatively, if a 12-point
stratification test was performed and the emissions were shown to be
minimally stratified (all points within  10.0 percent of
their mean or within  1.0 ppm), and if the stack
diameter (or equivalent diameter, for a rectangular stack or duct)
is greater than 2.4 meters (7.8 ft), then you may use 3-point
sampling and locate the three points along the measurement line
exhibiting the highest average concentration during the
stratification test at 0.4, 1.0 and 2.0 meters from the stack or
duct wall. If the gas stream is found to be stratified because the
10.0 percent or 1.0 ppm criterion for a 3-point test is not met,
locate 12 traverse points for the test in accordance with Table 1-2.
* * * * *
    11.4.1 In most stationary sources, the direction of stack gas
flow is essentially parallel to the stack walls. However, cyclonic
flow may exist: (1) after such devices as cyclones and inertial
demisters following venturi scrubbers, or (2) in stacks having
tangential inlets or other duct configurations which tend to induce
swirling. Determine the presence or absence of cyclonic flow at each
sampling location. The following techniques are acceptable for this
determination.
* * * * *
[GRAPHIC] [TIFF OMITTED] TP09JA12.025

[GRAPHIC] [TIFF OMITTED] TP09JA12.026

* * * * *
    25. Amend Method 2 of Appendix A-1 to Part 60 as follows:
    a. By revising Section 8.1.
    b. By revising the Note at the end of 10.1.1
    c. By revising Section 10.4.
    d. By adding a term to Section 12.1.
    e. By revising Sections 12.6, and 12.7.

Method 2--Determination of Stack Gas Velocity and Volumetric Flow Rate
(Type S Pitot Tube)

* * * * *
    8.1 Set up the apparatus as shown in Figure 2-1. Capillary
tubing or surge tanks installed between the manometer and pitot tube
may be used to dampen [Delta]P fluctuations. It is recommended, but
not required, that a pretest leak-check be conducted as follows: (1)
blow through the pitot impact opening until at least 7.6 cm (3.0
in.) H2O velocity head registers on the manometer; then,
close off the impact opening. The pressure shall remain stable
( 2.5 mm H2O,  0.10 in.
H2O) for at least 15 seconds; (2) do the same for the
static pressure side, except using suction to obtain the minimum of
7.6 cm (3.0 in.) H2O. Other leak-check procedures,
subject to the approval of the Administrator, may be used.
* * * * *
    10.1.1 * * *

    Note: Do not use a Type S pitot tube assembly that is
constructed such that the impact pressure opening plane of the pitot
tube is below the entry plane of the nozzle (see Figure 2-7B).

* * * * *
    10.4 Barometer. Calibrate the barometer used against a mercury
barometer or NIST-traceable barometer prior to each field test.
* * * * *
    12.1 Nomenclature
    * * *
    Ts(abavg)--Average absolute stack temperature, [deg]K
([deg]R).
* * * * *
    12.6 Average Stack Gas Velocity.
    [GRAPHIC] [TIFF OMITTED] TP09JA12.027

Where:
[GRAPHIC] [TIFF OMITTED] TP09JA12.028

    12.7 Average Stack Gas Dry Volumetric Flow Rate.
    [GRAPHIC] [TIFF OMITTED] TP09JA12.029

* * * * *
    26. Amend Method 2A of Appendix A-1 to Part 60 by revising Sections
10.3 and 12.2 to read as follows:

Method 2A--Direct Measurement of Gas Volume Through Pipes and Small
Ducts

* * * * *
    10.3 Barometer. Calibrate the barometer used against a mercury
barometer or NIST-traceable barometer prior to the field test.
* * * * *
    12.2 Test Meter Calibration Coefficient.
    [GRAPHIC] [TIFF OMITTED] TP09JA12.030

* * * * *
    27. Amend Method 2B of Appendix A-1 to Part 60 by revising Section
12.1 to read as follows:

Method 2B--Determination of Exhaust Gas Volume Flow Rate from Gasoline
Vapor Incinerators

* * * * *
    12.1 Nomenclature.

COe = Mean carbon monoxide concentration in system
exhaust, ppm.
(CO2)a = Ambient carbon dioxide concentration,
ppm (if not measured during the test period, may be assumed to equal
380 ppm).
(CO2)e = Mean carbon dioxide concentration in
system exhaust, ppm.
HCe = Mean organic concentration in system exhaust as
defined by the calibration gas, ppm.
Hci = Mean organic concentration in system inlet as
defined by the calibration gas, ppm.
Ke = Hydrocarbon calibration gas factor for the exhaust
hydrocarbon analyzer, unitless [equal to the number of carbon atoms
per molecule of the gas used to calibrate the analyzer (2 for
ethane, 3 for propane, etc.)].
Ki = Hydrocarbon calibration gas factor for the inlet
hydrocarbon analyzer, unitless.
Ves = Exhaust gas volume, m\3\.
Vis = Inlet gas volume, m\3\.
Qes = Exhaust gas volume flow rate, m\3\/min.
Qis = Inlet gas volume flow rate, m\3\/min.
[Theta] = Sample run time, min.
S = Standard conditions: 20 [deg]C, 760 mm Hg.
* * * * *
    28. Amend Method 2D of Appendix A-1 to Part 60 by revising Section
10.4 to read as follows:

Method 2D--Measurement of Gas Volume Flow Rates in Small Pipes and
Ducts

* * * * *
    10.4 Barometer. Calibrate the barometer used against a mercury
barometer or NIST-traceable barometer prior to the field test.
* * * * *
    29. Amend Method 3A of Appendix A-2 to Part 60 by revising Section
7.1 to read as follows:

Appendix A-2 to Part 60--Test Methods 2G through 3C

* * * * *

Method 3A--Determination of Oxygen and Carbon Dioxide Concentrations in
Emissions From Stationary Sources (Instrumental Analyzer Procedure)

* * * * *
    7.1 Calibration Gas. What calibration gases do I need? Refer to
Section 7.1 of Method 7E for the calibration gas requirements.
Example calibration gas mixtures are listed below. Pre-cleaned or
scrubbed air may be used for the O2 high-calibration gas
provided it does not contain other gases that interfere with the
O2 measurement.
    (a) CO2 in Nitrogen (N2).
    (b) CO2 in air.
    (c) CO2/SO2 gas mixture in N2.
    (d) O2/SO2 gas mixture in N2.
    (e) O2/CO2/SO2 gas mixture in
N2.
    (f) CO2/NOX gas mixture in N2.
    (g) CO2/SO2/NOX gas mixture in
N2.
    The tests for analyzer calibration error and system bias require
high-, mid-, and low-level gases.
* * * * *
    30. Amend Method 4 of Appendix A-3 to Part 60 by revising Sections
9.1 and 16 to read as follows:

Appendix A-3 to Part 60--Test Methods 4 Through 5I

* * * * *

Method 4--Determination of Moisture Content in Stack Gases

* * * * *
    9.1 Miscellaneous Quality Control Measures.

------------------------------------------------------------------------
                                 Quality control
           Section                   measure               Effect
------------------------------------------------------------------------
Section <IP_ADDRESS>.............  Leak rate of the      Ensures the accuracy
                               sampling system       of the volume of
                               cannot exceed four    gas sampled.
                               percent of the        (Reference Method)
                               average sampling
                               rate or 0.00057
                               m\3\/min (0.020
                               cfm).
Section 8.2.1...............  Leak rate of the      Ensures the accuracy
                               sampling system       of the volume of
                               cannot exceed two     gas sampled.
                               percent of the        (Approximation
                               average sampling      Method)
                               rate.
------------------------------------------------------------------------

* * * * *

16.0 Alternative Procedures

    16.1 The procedure described in Method 5 for determining
moisture content is an acceptable alternative to Method 4.
    16.2 The procedures in Method 6A for determining moisture is an
acceptable alternative to Method 4.
    16.3 Method 320 is an acceptable alternative to Method 4 for
determining moisture.
    16.4 Using F-factors to determine moisture is an acceptable
alternative to Method 4. For a combustion stack not using a
scrubber, the moisture content may be calculated as follows:
[GRAPHIC] [TIFF OMITTED] TP09JA12.031

Where:

BA = Mole fraction of moisture in the ambient air.
[GRAPHIC] [TIFF OMITTED] TP09JA12.032

BF = Mole fraction of moisture from free water in the
fuel.

[GRAPHIC] [TIFF OMITTED] TP09JA12.033

BH = Mole fraction of moisture from the hydrogen in the
fuel.
[GRAPHIC] [TIFF OMITTED] TP09JA12.034

Bws = Mole fraction of moisture in the stack gas.
Fd = Volume of dry combustion components per unit of heat
content at 0 percent oxygen, dscf/10\6\ Btu (scm/J). See Table 19-2
in Method 19.
FW = Volume of wet combustion components per unit of heat
content at 0 percent oxygen, wet scf/10\6\ Btu (scm/J). See Table
19-2 in Method 19.
%RH = Percent relative humidity (calibrated hydrometer acceptable),
percent.