that at the industry level, the annualized costs represent a very small
fraction of revenue (generally less than 0.5 percent). As a result, we
can conclude supply and price impacts on affected energy producers and
consumers should be small.
    To enhance understanding regarding the regulation's influence on
energy consumption, we examined publicly available data describing
energy consumption for the electric power sector. The electric power
sector is expected to incur about half of the $253 million in
compliance costs associated with this final rule, and is the industry
expected to incur the greatest share of the costs relative to other
affected industries. The Annual Energy Outlook 2010 (EIA, 2009)
provides energy consumption data. Since this final rule primarily
affects natural gas and gasoline-fired RICE, our analysis focuses on
impacts of consumption of these fuels. As shown in Table 5 of this
preamble, the electric power sector accounts for less than 5.1 percent
of U.S. natural gas consumption. As a result, any energy consumption
changes attributable to this final rule should not significantly
influence the supply, distribution, or use of energy nationwide.

       Table 5--U.S. Electric Power \a\ Sector Energy Consumption
                       [(Quadrillion BTUs): 2013]
------------------------------------------------------------------------
                                                               Share of
                                                                total
                                                  Quantity    energy use
                                                              (percent)
------------------------------------------------------------------------
Distillate fuel oil...........................         0.12          0.1
Residual fuel oil.............................         0.34          0.3
Liquid fuels subtotal.........................         0.45          0.5
Natural gas...................................         5.17          5.1
Steam coal....................................        20.69         20.6
Nuclear power.................................         8.59          8.5
Renewable energy \b\..........................         6.06          6.0
Electricity Imports...........................         0.09          0.1
                                               -------------------------
    Total Electric Power Energy Consumption           41.18         40.9
     \c\......................................
                                               -------------------------
    Delivered Energy Use......................        72.41         72.0
    Total Energy Use..........................       100.59        100.0
------------------------------------------------------------------------
\a\ Includes consumption of energy by electricity-only and combined heat
  and power plants whose primary business is to sell electricity, or
  electricity and heat, to the public. Includes small power producers
  and exempt wholesale generators.
\b\ Includes conventional hydroelectric, geothermal, wood and wood
  waste, biogenic municipal solid waste, other biomass, petroleum coke,
  wind, photovoltaic and solar thermal sources. Excludes net electricity
  imports.
\c\ Includes non-biogenic municipal waste not included above.
Source: U.S. Energy Information Administration. 2009. Supplemental
  Tables to the Annual Energy Outlook 2010.

I. National Technology Transfer and Advancement Act

    Section 12(d) of the National Technology Transfer and Advancement
Act (NTTAA) of 1995 (Pub. L. 104-113, Section 12(d), 15 U.S.C. 272
note) directs EPA to use voluntary consensus standards (VCS) in its
regulatory activities, unless to do so would be inconsistent with
applicable law or otherwise impractical. The VCS are technical
standards (e.g., materials specifications, test methods, sampling
procedures, and business practices) that are developed or adopted by
VCS bodies. The NTTAA directs EPA to provide Congress, through OMB,
explanations when the Agency does not use available and applicable VCS.
    EPA cites technical standard EPA Method 323 of 40 CFR part 63,
appendix A, in this final rule. Consistent with the NTTAA, EPA
conducted searches to identify VCS in addition to this EPA method. No
applicable VCS were identified for EPA Method 323. The search and
review results have been documented and are placed in the docket for
this final rule.
    Under Sec.  63.7(f) and Sec.  63.8(f) of subpart A of the General
Provisions, a source may apply to EPA for permission to use alternative
test methods or alternative monitoring requirements in place of any
required or referenced testing methods, performance specifications, or
procedures.

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

    Executive Order 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.
    EPA has determined that this final rule will not have
disproportionately high and adverse human health or environmental
effects on minority or low-income populations because it increases the
level of environmental protection for all affected populations without
having any disproportionately high and adverse human health or
environmental effects on any population, including any minority or low-
income population. This rule is a nationwide standard that reduces air
toxics emissions from existing stationary SI engines, thus decreasing
the amount of such emissions to which all affected populations are
exposed.

K. Congressional Review Act

    The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the
Small Business Regulatory Enforcement Fairness Act of 1996, generally
provides that before a rule may take effect, the agency promulgating
the rule must submit a rule report, which includes a copy of the rule,
to each House of the Congress and to the Comptroller General of the
United States. EPA will submit a report containing this final rule and
other required information to the U.S. Senate, the U.S. House of
Representatives, and the Comptroller General of the United States prior
to publication of this final rule in the Federal Register. A major rule
cannot take effect until 60 days after it is published in the Federal
Register. This action is a ``major rule'' as defined by 5 U.S.C.
804(2). This final rule will be effective on October 19, 2010.

List of Subjects in 40 CFR Part 63

    Administrative practice and procedure, Air pollution control,
Hazardous substances, Incorporation by reference, Intergovernmental
relations, Reporting and recordkeeping requirements.

    Dated: August 10, 2010.
Lisa P. Jackson,
Administrator.

0
For the reasons stated in the preamble, title 40, chapter I, part 63 of
the Code of Federal Regulations is amended as follows:

PART 63--[AMENDED]

0
1. The authority citation for part 63 continues to read as follows:

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

Subpart ZZZZ--[Amended]

0
2. Section 63.6590 is amended by revising paragraphs (b)(2), (b)(3),
and (c) to read as follows:

Sec.  63.6590  What parts of my plant does this subpart cover?

* * * * *
    (b) * * *
    (2) A new or reconstructed stationary RICE with a site rating of
more than 500 brake HP located at a major source of HAP emissions which
combusts landfill or digester gas equivalent to 10 percent or more of
the gross heat input on an annual basis must meet the initial
notification requirements of Sec.  63.6645(f) and the requirements of
Sec. Sec.  63.6625(c), 63.6650(g), and 63.6655(c). These stationary
RICE do not have to meet the emission limitations and operating
limitations of this subpart.
    (3) The following stationary RICE do not have to meet the
requirements of this subpart and of subpart A of this part, including
initial notification requirements:
    (i) Existing spark ignition 2 stroke lean burn (2SLB) stationary
RICE with a site rating of more than 500 brake HP located at a major
source of HAP emissions;
    (ii) Existing spark ignition 4 stroke lean burn (4SLB) stationary
RICE with a site rating of more than 500 brake HP located at a major
source of HAP emissions;
    (iii) Existing emergency stationary RICE with a site rating of more
than 500 brake HP located at a major source of HAP emissions;
    (iv) Existing limited use stationary RICE with a site rating of
more than 500 brake HP located at a major source of HAP emissions;
    (v) Existing stationary RICE with a site rating of more than 500
brake HP located at a major source of HAP emissions that combusts
landfill gas or digester gas equivalent to 10 percent or more of the
gross heat input on an annual basis;
    (vi) Existing residential emergency stationary RICE located at an
area source of HAP emissions;
    (vii) Existing commercial emergency stationary RICE located at an
area source of HAP emissions; or
    (viii) Existing institutional emergency stationary RICE located at
an area source of HAP emissions.
    (c) Stationary RICE subject to Regulations under 40 CFR Part 60. An
affected source that meets any of the criteria in paragraphs (c)(1)
through (7) of this section must meet the requirements of this part by
meeting the requirements of 40 CFR part 60 subpart IIII, for
compression ignition engines or 40 CFR part 60 subpart JJJJ, for spark
ignition engines. No further requirements apply for such engines under
this part.
    (1) A new or reconstructed stationary RICE located at an area
source;
    (2) A new or reconstructed 2SLB stationary RICE with a site rating
of less than or equal to 500 brake HP located at a major source of HAP
emissions;
    (3) A new or reconstructed 4SLB stationary RICE with a site rating
of less than 250 brake HP located at a major source of HAP emissions;
    (4) A new or reconstructed spark ignition 4 stroke rich burn (4SRB)
stationary RICE with a site rating of less

than or equal to 500 brake HP located at a major source of HAP
emissions;
    (5) A new or reconstructed stationary RICE with a site rating of
less than or equal to 500 brake HP located at a major source of HAP
emissions which combusts landfill or digester gas equivalent to 10
percent or more of the gross heat input on an annual basis;
    (6) A new or reconstructed emergency or limited use stationary RICE
with a site rating of less than or equal to 500 brake HP located at a
major source of HAP emissions;
    (7) A new or reconstructed compression ignition (CI) stationary
RICE with a site rating of less than or equal to 500 brake HP located
at a major source of HAP emissions.

0
3. Section 63.6595 is amended by revising paragraph (a)(1) to read as
follows:

Sec.  63.6595  When do I have to comply with this subpart?

    (a) * * *
    (1) If you have an existing stationary RICE, excluding existing
non-emergency CI stationary RICE, with a site rating of more than 500
brake HP located at a major source of HAP emissions, you must comply
with the applicable emission limitations and operating limitations no
later than June 15, 2007. If you have an existing non-emergency CI
stationary RICE with a site rating of more than 500 brake HP located at
a major source of HAP emissions, an existing stationary CI RICE with a
site rating of less than or equal to 500 brake HP located at a major
source of HAP emissions, or an existing stationary CI RICE located at
an area source of HAP emissions, you must comply with the applicable
emission limitations and operating limitations no later than May 3,
2013. If you have an existing stationary SI RICE with a site rating of
less than or equal to 500 brake HP located at a major source of HAP
emissions, or an existing stationary SI RICE located at an area source
of HAP emissions, you must comply with the applicable emission
limitations and operating limitations no later than October 19, 2013.
* * * * *

0
4. Section 63.6601 is amended by revising the section heading to read
as follows:

Sec.  63.6601  What emission limitations must I meet if I own or
operate a new or reconstructed 4SLB stationary RICE with a site rating
of greater than or equal to 250 brake HP and less than or equal to 500
brake HP located at a major source of HAP emissions?

* * * * *

0
5. Section 63.6602 is revised to read as follows:

Sec.  63.6602  What emission limitations must I meet if I own or
operate an existing stationary RICE with a site rating of equal to or
less than 500 brake HP located at a major source of HAP emissions?

    If you own or operate an existing stationary RICE with a site
rating of equal to or less than 500 brake HP located at a major source
of HAP emissions, you must comply with the emission limitations in
Table 2c to this subpart which apply to you. Compliance with the
numerical emission limitations established in this subpart is based on
the results of testing the average of three 1-hour runs using the
testing requirements and procedures in Sec.  63.6620 and Table 4 to
this subpart.

0
6. Section 63.6603 is amended by revising the section heading and
paragraph (a) to read as follows:

Sec.  63.6603  What emission limitations and operating limitations must
I meet if I own or operate an existing stationary RICE located at an
area source of HAP emissions?

* * * * *
    (a) If you own or operate an existing stationary RICE located at an
area source of HAP emissions, you must comply with the requirements in
Table 2d to this subpart and the operating limitations in Table 2b to
this subpart which apply to you.
* * * * *

0
7. Section 63.6604 is revised to read as follows:

Sec.  63.6604  What fuel requirements must I meet if I own or operate
an existing stationary CI RICE?

    If you own or operate an existing non-emergency, non-black start CI
stationary RICE with a site rating of more than 300 brake HP with a
displacement of less than 30 liters per cylinder that uses diesel fuel,
you must use diesel fuel that meets the requirements in 40 CFR
80.510(b) for nonroad diesel fuel. Existing non-emergency CI stationary
RICE located in Guam, American Samoa, the Commonwealth of the Northern
Mariana Islands, or at area sources in areas of Alaska not accessible
by the FAHS are exempt from the requirements of this section.

0
8. Section 63.6611 is amended by revising the section heading to read
as follows:

Sec.  63.6611  By what date must I conduct the initial performance
tests or other initial compliance demonstrations if I own or operate a
new or reconstructed 4SLB SI stationary RICE with a site rating of
greater than or equal to 250 and less than or equal to 500 brake HP
located at a major source of HAP emissions?

* * * * *

0
9. Section 63.6612 is amended by revising the introductory text to read
as follows:

Sec.  63.6612  By what date must I conduct the initial performance
tests or other initial compliance demonstrations if I own or operate an
existing stationary RICE with a site rating of less than or equal to
500 brake HP located at a major source of HAP emissions or an existing
stationary RICE located at an area source of HAP emissions?

    If you own or operate an existing stationary RICE with a site
rating of less than or equal to 500 brake HP located at a major source
of HAP emissions or an existing stationary RICE located at an area
source of HAP emissions you are subject to the requirements of this
section.
* * * * *

0
10. Section 63.6625 is amended by:
0
a. Revising paragraph (b);
0
b. Revising paragraph (e);
0
c. Revising paragraph (g) introductory text;
0
d. Revising paragraph (h);
0
e. Revising paragraph (i); and
0
f. Adding paragraphs (j) and (k) to read as follows:

Sec.  63.6625  What are my monitoring, installation, collection,
operation, and maintenance requirements?

* * * * *
    (b) If you are required to install a continuous parameter
monitoring system (CPMS) as specified in Table 5 of this subpart, you
must install, operate, and maintain each CPMS according to the
requirements in paragraphs (b)(1) through (8) of this section.
    (1) The CPMS must complete a minimum of one cycle of operation for
each successive 15-minute period. You must have a minimum of four
successive cycles of operation to have a valid hour of data.
    (2) Except for monitoring malfunctions, associated repairs, and
required quality assurance or control activities (including, as
applicable, calibration checks and required zero and span adjustments),
you must conduct all monitoring in continuous operation at all times
that the unit is operating. A monitoring malfunction is any sudden,
infrequent, not reasonably preventable failure of the monitoring to

provide valid data. Monitoring failures that are caused in part by poor
maintenance or careless operation are not malfunctions.
    (3) For purposes of calculating data averages, you must not use
data recorded during monitoring malfunctions, associated repairs, out
of control periods, or required quality assurance or control
activities. You must use all the data collected during all other
periods in assessing compliance. Any 15-minute period for which the
monitoring system is out-of-control and data are not available for
required calculations constitutes a deviation from the monitoring
requirements.
    (4) Determine the 3-hour block average of all recorded readings,
except as provided in paragraph (b)(3) of this section.
    (5) Record the results of each inspection, calibration, and
validation check.
    (6) You must develop a site-specific monitoring plan that addresses
paragraphs (b)(6)(i) through (vi) of this section.
    (i) Installation of the CPMS sampling probe or other interface at
the appropriate location to obtain representative measurements;
    (ii) Performance and equipment specifications for the sample
interface, parametric signal analyzer, and the data collection and
reduction systems;
    (iii) Performance evaluation procedures and acceptance criteria
(e.g., calibrations);
    (iv) Ongoing operation and maintenance procedures in accordance
with the general requirements of Sec.  63.8(c)(1), (c)(3), and
(c)(4)(ii);
    (v) Ongoing data quality assurance procedures in accordance with
the general requirements of Sec.  63.8(d); and
    (vi) Ongoing recordkeeping and reporting procedures in accordance
with the general requirements of Sec.  63.10(c), (e)(1), and (e)(2)(i).
    (7) You must conduct a performance evaluation of each CPMS in
accordance with your site-specific monitoring plan.
    (8) You must operate and maintain the CPMS in continuous operation
according to the site-specific monitoring plan.
* * * * *
    (e) If you own or operate any of the following stationary RICE, you
must operate and maintain the stationary RICE and after-treatment
control device (if any) according to the manufacturer's emission-
related written instructions or develop your own maintenance plan which
must provide to the extent practicable for the maintenance and
operation of the engine in a manner consistent with good air pollution
control practice for minimizing emissions:
    (1) An existing stationary RICE with a site rating of less than 100
HP located at a major source of HAP emissions;
    (2) An existing emergency or black start stationary RICE with a
site rating of less than or equal to 500 HP located at a major source
of HAP emissions;
    (3) An existing emergency or black start stationary RICE located at
an area source of HAP emissions;
    (4) An existing non-emergency, non-black start stationary CI RICE
with a site rating less than or equal to 300 HP located at an area
source of HAP emissions;
    (5) An existing non-emergency, non-black start 2SLB stationary RICE
located at an area source of HAP emissions;
    (6) An existing non-emergency, non-black start landfill or digester
gas stationary RICE located at an area source of HAP emissions;
    (7) An existing non-emergency, non-black start 4SLB stationary RICE
with a site rating less than or equal to 500 HP located at an area
source of HAP emissions;
    (8) An existing non-emergency, non-black start 4SRB stationary RICE
with a site rating less than or equal to 500 HP located at an area
source of HAP emissions;
    (9) An existing, non-emergency, non-black start 4SLB stationary
RICE with a site rating greater than 500 HP located at an area source
of HAP emissions that is operated 24 hours or less per calendar year;
and
    (10) An existing, non-emergency, non-black start 4SRB stationary
RICE with a site rating greater than 500 HP located at an area source
of HAP emissions that is operated 24 hours or less per calendar year.
* * * * *
    (g) If you own or operate an existing non-emergency, non-black
start CI engine greater than or equal to 300 HP that is not equipped
with a closed crankcase ventilation system, you must comply with either
paragraph (g)(1) or paragraph (g)(2) of this section. Owners and
operators must follow the manufacturer's specified maintenance
requirements for operating and maintaining the open or closed crankcase
ventilation systems and replacing the crankcase filters, or can request
the Administrator to approve different maintenance requirements that
are as protective as manufacturer requirements. Existing CI engines
located at area sources in areas of Alaska not accessible by the FAHS
do not have to meet the requirements of paragraph (g) of this section.
* * * * *
    (h) If you operate a new, reconstructed, or existing stationary
engine, you must minimize the engine's time spent at idle during
startup and minimize the engine's startup time to a period needed for
appropriate and safe loading of the engine, not to exceed 30 minutes,
after which time the emission standards applicable to all times other
than startup in Tables 1a, 2a, 2c, and 2d to this subpart apply.
    (i) If you own or operate a stationary CI engine that is subject to
the work, operation or management practices in items 1 or 2 of Table 2c
to this subpart or in items 1 or 4 of Table 2d to this subpart, you
have the option of utilizing an oil analysis program in order to extend
the specified oil change requirement in Tables 2c and 2d to this
subpart. The oil analysis must be performed at the same frequency
specified for changing the oil in Table 2c or 2d to this subpart. The
analysis program must at a minimum analyze the following three
parameters: Total Base Number, viscosity, and percent water content.
The condemning limits for these parameters are as follows: Total Base
Number is less than 30 percent of the Total Base Number of the oil when
new; viscosity of the oil has changed by more than 20 percent from the
viscosity of the oil when new; or percent water content (by volume) is
greater than 0.5. If all of these condemning limits are not exceeded,
the engine owner or operator is not required to change the oil. If any
of the limits are exceeded, the engine owner or operator must change
the oil within 2 days of receiving the results of the analysis; if the
engine is not in operation when the results of the analysis are
received, the engine owner or operator must change the oil within 2
days or before commencing operation, whichever is later. The owner or
operator must keep records of the parameters that are analyzed as part
of the program, the results of the analysis, and the oil changes for
the engine. The analysis program must be part of the maintenance plan
for the engine.
    (j) If you own or operate a stationary SI engine that is subject to
the work, operation or management practices in items 6, 7, or 8 of
Table 2c to this subpart or in items 5, 6, 7, 9, or 11 of Table 2d to
this subpart, you have the option of utilizing an oil analysis program
in order to extend the specified oil change requirement in Tables 2c
and 2d to this subpart. The oil analysis must be performed at the same
frequency specified for changing the oil in Table

2c or 2d to this subpart. The analysis program must at a minimum
analyze the following three parameters: Total Acid Number, viscosity,
and percent water content. The condemning limits for these parameters
are as follows: Total Acid Number increases by more than 3.0 milligrams
of potassium hydroxide (KOH) per gram from Total Acid Number of the oil
when new; viscosity of the oil has changed by more than 20 percent from
the viscosity of the oil when new; or percent water content (by volume)
is greater than 0.5. If all of these condemning limits are not
exceeded, the engine owner or operator is not required to change the
oil. If any of the limits are exceeded, the engine owner or operator
must change the oil within 2 days of receiving the results of the
analysis; if the engine is not in operation when the results of the
analysis are received, the engine owner or operator must change the oil
within 2 days or before commencing operation, whichever is later. The
owner or operator must keep records of the parameters that are analyzed
as part of the program, the results of the analysis, and the oil
changes for the engine. The analysis program must be part of the
maintenance plan for the engine.
    (k) If you have an operating limitation that requires the use of a
temperature measurement device, you must meet the requirements in
paragraphs (k)(1) through (4) of this section.
    (1) Locate the temperature sensor and other necessary equipment in
a position that provides a representative temperature.
    (2) Use a temperature sensor with a minimum tolerance of 2.8
degrees Celsius (5 degrees Fahrenheit), or 1.0 percent of the
temperature value, whichever is larger, for a noncryogenic temperature
range.
    (3) Use a temperature sensor with a minimum tolerance of 2.8
degrees Celsius (5 degrees Fahrenheit), or 2.5 percent of the
temperature value, whichever is larger, for a cryogenic temperature
range.
    (4) Conduct a temperature measurement device calibration check at
least every 3 months.

0
11. Section 63.6640 is amended by revising paragraph (f) to read as
follows:

Sec.  63.6640  How do I demonstrate continuous compliance with the
emission limitations and operating limitations?

* * * * *
    (f) Requirements for emergency stationary RICE. (1) If you own or
operate an existing emergency stationary RICE with a site rating of
less than or equal to 500 brake HP located at a major source of HAP
emissions, a new or reconstructed emergency stationary RICE with a site
rating of more than 500 brake HP located at a major source of HAP
emissions that was installed on or after June 12, 2006, or an existing
emergency stationary RICE located at an area source of HAP emissions,
you must operate the emergency stationary RICE according to the
requirements in paragraphs (f)(1)(i) through (iii) of this section. Any
operation other than emergency operation, maintenance and testing, and
operation in non-emergency situations for 50 hours per year, as
described in paragraphs (f)(1)(i) through (iii) of this section, is
prohibited. If you do not operate the engine according to the
requirements in paragraphs (f)(1)(i) through (iii) of this section, the
engine will not be considered an emergency engine under this subpart
and will need to meet all requirements for non-emergency engines.
    (i) There is no time limit on the use of emergency stationary RICE
in emergency situations.
    (ii) You may operate your emergency stationary RICE for the purpose
of maintenance checks and readiness testing, provided that the tests
are recommended by Federal, State or local government, the
manufacturer, the vendor, or the insurance company associated with the
engine. Maintenance checks and readiness testing of such units is
limited to 100 hours per year. The owner or operator may petition the
Administrator for approval of additional hours to be used for
maintenance checks and readiness testing, but a petition is not
required if the owner or operator maintains records indicating that
Federal, State, or local standards require maintenance and testing of
emergency RICE beyond 100 hours per year.
    (iii) You may operate your emergency stationary RICE up to 50 hours
per year in non-emergency situations, but those 50 hours are counted
towards the 100 hours per year provided for maintenance and testing.
The 50 hours per year for non-emergency situations cannot be used for
peak shaving or to generate income for a facility to supply power to an
electric grid or otherwise supply power as part of a financial
arrangement with another entity; except that owners and operators may
operate the emergency engine for a maximum of 15 hours per year as part
of a demand response program if the regional transmission organization
or equivalent balancing authority and transmission operator has
determined there are emergency conditions that could lead to a
potential electrical blackout, such as unusually low frequency,
equipment overload, capacity or energy deficiency, or unacceptable
voltage level. The engine may not be operated for more than 30 minutes
prior to the time when the emergency condition is expected to occur,
and the engine operation must be terminated immediately after the
facility is notified that the emergency condition is no longer
imminent. The 15 hours per year of demand response operation are
counted as part of the 50 hours of operation per year provided for non-
emergency situations. The supply of emergency power to another entity
or entities pursuant to financial arrangement is not limited by this
paragraph (f)(1)(iii), as long as the power provided by the financial
arrangement is limited to emergency power.
    (2) If you own or operate an emergency stationary RICE with a site
rating of more than 500 brake HP located at a major source of HAP
emissions that was installed prior to June 12, 2006, you must operate
the engine according to the conditions described in paragraphs
(f)(2)(i) through (iii) of this section. If you do not operate the
engine according to the requirements in paragraphs (f)(2)(i) through
(iii) of this section, the engine will not be considered an emergency
engine under this subpart and will need to meet all requirements for
non-emergency engines.
    (i) There is no time limit on the use of emergency stationary RICE
in emergency situations.
    (ii) You may operate your emergency stationary RICE for the purpose
of maintenance checks and readiness testing, provided that the tests
are recommended by the manufacturer, the vendor, or the insurance
company associated with the engine. Required testing of such units
should be minimized, but there is no time limit on the use of emergency
stationary RICE in emergency situations and for routine testing and
maintenance.
    (iii) You may operate your emergency stationary RICE for an
additional 50 hours per year in non-emergency situations. The 50 hours
per year for non-emergency situations cannot be used for peak shaving
or to generate income for a facility to supply power to an electric
grid or otherwise supply power as part of a financial arrangement with
another entity.

0
12. Section 63.6645 is amended by revising paragraphs (a)(1), (a)(2),
and (a)(5) to read as follows:

Sec.  63.6645  What notifications must I submit and when?

    (a) * * *
    (1) An existing stationary RICE with a site rating of less than or
equal to 500

brake HP located at a major source of HAP emissions.
    (2) An existing stationary RICE located at an area source of HAP
emissions.
* * * * *
    (5) This requirement does not apply if you own or operate an
existing stationary RICE less than 100 HP, an existing stationary
emergency RICE, or an existing stationary RICE that is not subject to
any numerical emission standards.
* * * * *

0
13. Section 63.6655 is amended by revising paragraphs (e)(1) through
(e)(3) and (f)(1) and (f)(2) to read as follows:

Sec.  63.6655  What records must I keep?

* * * * *
    (e) * * *
    (1) An existing stationary RICE with a site rating of less than 100
brake HP located at a major source of HAP emissions.
    (2) An existing stationary emergency RICE.
    (3) An existing stationary RICE located at an area source of HAP
emissions subject to management practices as shown in Table 2d to this
subpart.
    (f) * * *
    (1) An existing emergency stationary RICE with a site rating of
less than or equal to 500 brake HP located at a major source of HAP
emissions that does not meet the standards applicable to non-emergency
engines.
    (2) An existing emergency stationary RICE located at an area source
of HAP emissions that does not meet the standards applicable to non-
emergency engines.

0
14. Section 63.6675 is amended by:
0
a. Adding in alphabetical order the definition of Commercial emergency
stationary RICE;
0
b. Revising the definition of Emergency stationary RICE;
0
c. Adding in alphabetical order the definition of Institutional
emergency stationary RICE;
0
d. Adding in alphabetical order the definition of Residential emergency
stationary RICE; and
0
e. Removing the definition of Residential/commercial/institutional
emergency stationary RICE to read as follows:

Sec.  63.6675  What definitions apply to this subpart?

* * * * *
    Commercial emergency stationary RICE means an emergency stationary
RICE used in commercial establishments such as office buildings,
hotels, stores, telecommunications facilities, restaurants, financial
institutions such as banks, doctor's offices, and sports and performing
arts facilities.
* * * * *
    Emergency stationary RICE means any stationary internal combustion
engine whose operation is limited to emergency situations and required
testing and maintenance. Examples include stationary RICE used to
produce power for critical networks or equipment (including power
supplied to portions of a facility) when electric power from the local
utility (or the normal power source, if the facility runs on its own
power production) is interrupted, or stationary RICE used to pump water
in the case of fire or flood, etc. Stationary RICE used for peak
shaving are not considered emergency stationary RICE. Stationary RICE
used to supply power to an electric grid or that supply non-emergency
power as part of a financial arrangement with another entity are not
considered to be emergency engines, except as permitted under Sec.
63.6640(f). All emergency stationary RICE must comply with the
requirements specified in Sec.  63.6640(f) in order to be considered
emergency stationary RICE. If the engine does not comply with the
requirements specified in Sec.  63.6640(f), then it is not considered
to be an emergency stationary RICE under this subpart.
* * * * *
    Institutional emergency stationary RICE means an emergency
stationary RICE used in institutional establishments such as medical
centers, nursing homes, research centers, institutions of higher
education, correctional facilities, elementary and secondary schools,
libraries, religious establishments, police stations, and fire
stations.
* * * * *
    Residential emergency stationary RICE means an emergency stationary
RICE used in residential establishments such as homes or apartment
buildings.
* * * * *

0
15. Table 1a to Subpart ZZZZ of Part 63 heading and introductory text
is revised to read as follows:

Table 1a to Subpart ZZZZ of Part 63. Emission Limitations for Existing,
New, and Reconstructed Spark Ignition, 4SRB Stationary RICE > 500 HP
Located at a Major Source of HAP Emissions

    As stated in Sec. Sec.  63.6600 and 63.6640, you must comply with
the following emission limitations at 100 percent load plus or minus 10
percent for existing, new and reconstructed 4SRB stationary RICE >500
HP located at a major source of HAP emissions:
* * * * *

0
16. Table 1b to Subpart ZZZZ of Part 63 is revised to read as follows:

Table 1b to Subpart ZZZZ of Part 63. Operating Limitations for
Existing, New, and Reconstructed Spark Ignition 4SRB Stationary RICE >
500 HP Located at a Major Source of HAP Emissions and Existing Spark
Ignition 4SRB Stationary RICE > 500 HP Located at an Area Source of HAP
Emissions

    As stated in Sec. Sec.  63.6600, 63.6630 and 63.6640, you must
comply with the following operating limitations for existing, new and
reconstructed 4SRB stationary RICE > 500 HP located at a major source
of HAP emissions and existing 4SRB stationary RICE > 500 HP located at
an area source of HAP emissions that operate more than 24 hours per
calendar year:

------------------------------------------------------------------------
                                             You must meet the following
              For each . . .                 operating limitation . . .
------------------------------------------------------------------------
1. 4SRB stationary RICE complying with the  a. maintain your catalyst so
 requirement to reduce formaldehyde          that the pressure drop
 emissions by 76 percent or more (or by 75   across the catalyst does
 percent or more, if applicable) and using   not change by more than 2
 NSCR; or                                    inches of water at 100
                                             percent load plus or minus;
                                             10 percent from the
                                             pressure drop across the
                                             catalyst measured during
                                             the initial performance
                                             test and
4SRB stationary RICE complying with the     b. maintain the termperature
 requirement to limit the concentration of   of your stationary RICE
 formaldehyde in the stationary RICE         exhaust so the catalyst
 exhaust to 350 ppbvd or less at 15          inlet temperature is
 percent O2 and using NSCR; or               greater than or equal to
                                             750 [deg]F and less than or
                                             equal to 1250 [deg]F.
4SRB stationary RICE complying with the
 requirement to limit the concentration of
 formaldehyde in the stationary RICE
 exhaust to 2.7 ppmvd or less at 15
 percent O2 and using NSCR.

2. 4SRB stationary RICE complying with the  Comply with any operating
 requirement to reduce formaldehyde          limitations approved by the
 emissions by 76 percent or more (or by 75   Administrator.
 percent or more, if applicable) and not
 using NSCR; or
4SRB stationary RICE complying with the
 requirement to limit the concentration of
 formaldehyde in the stationary RICE
 exhaust to 350 ppbvd or less at 15
 percent O2 and not using NSCR; or
4SRB stationary RICE complying with the
 requirement to limit the concentration of
 formaldehyde in the stationary RICE
 exhaust to 2.7 ppmvd or less at 15
 percent O2 and using NSCR.
------------------------------------------------------------------------

0
17. Table 2b to Subpart ZZZZ of Part 63 is revised to read as follows:

Table 2b to Subpart ZZZZ of Part 63. Operating Limitations for New and
Reconstructed 2SLB and Compression Ignition Stationary RICE > 500 HP
Located at a Major Source of HAP Emissions, New and Reconstructed 4SLB
Stationary RICE >= 250 HP Located at a Major Source of HAP Emissions,
Existing Compression Ignition Stationary RICE > 500 HP, and Existing
4SLB Stationary RICE > 500 HP Located at an Area Source of HAP
Emissions

    As stated in Sec. Sec.  63.6600, 63.6601, 63.6630, and 63.6640, you
must comply with the following operating limitations for new and
reconstructed 2SLB and compression ignition stationary RICE located at
a major source of HAP emissions; new and reconstructed 4SLB stationary
RICE >= 250 HP located at a major source of HAP emissions; existing
compression ignition stationary RICE > 500 HP; and existing 4SLB
stationary RICE > 500 HP located at an area source of HAP emissions
that operate more than 24 hours per calendar year:

------------------------------------------------------------------------
                                           You must meet the following
             For each . . .                 operating limitation . . .
------------------------------------------------------------------------
1. 2SLB and 4SLB stationary RICE and CI  a. maintain your catalyst so
 stationary RICE complying with the       that the pressure drop across
 requirement to reduce CO emissions and   the catalyst does not change
 using an oxidation catalyst; or 2SLB     by more than 2 inches of water
 and 4SLB stationary RICE and CI          at 100 percent load plus or
 stationary RICE complying with the       minus 10 percent from the
 requirement to limit the concentration   pressure drop across the
 of formaldehyde in the stationary RICE   catalyst that was measured
 exhaust and using an oxidation           during the initial performance
 catalyst; or 4SLB stationary RICE and    test; and
 CI stationary RICE complying with the   b. maintain the temperature of
 requirement to limit the concentration   your stationary RICE exhaust
 of CO in the stationary RICE exhaust     so that the catalyst inlet
 and using an oxidation catalyst.         temperature is greater than or
                                          equal to 450 [deg]F and less
                                          than or equal to 1350
                                          [deg]F.\1\
2. 2SLB and 4SLB stationary RICE and CI  Comply with any operating
 stationary RICE complying with the       limitations approved by the
 requirement to reduce CO emissions and   Administrator.
 not using an oxidation catalyst; or
 2SLB and 4SLB stationary RICE and CI
 stationary RICE complying with the
 requirement to limit the concentration
 of formaldehyde in the stationary RICE
 exhaust and not using an oxidation
 catalyst; or 4SLB stationary RICE and
 CI stationary RICE complying with the
 requirement to limit the concentration
 of CO in the stationary RICE exhaust
 and not using an oxidation catalyst.
------------------------------------------------------------------------
\1\ Sources can petition the Administrator pursuant to the requirements
  of 40 CFR 63.8(g) for a different temperature range.

0
18. Table 2c to Subpart ZZZZ of Part 63 is revised to read as follows:

Table 2c to Subpart ZZZZ of Part 63. Requirements for Existing
Compression Ignition Stationary RICE Located at a Major Source of HAP
Emissions and Existing Spark Ignition Stationary RICE <= 500 HP Located
at a Major Source of HAP Emissions

    As stated in Sec. Sec.  63.6600, 63.6602, and 63.6640, you must
comply with the following requirements for existing compression
ignition stationary RICE located at a major source of HAP emissions and
existing spark ignition stationary RICE <= 500 HP located at a major
source of HAP emissions:

------------------------------------------------------------------------
                                You must meet the
                                    following         During periods of
       For each . . .          requirement, except  startup you must . .
                                during periods of             .
                                  startup . . .
------------------------------------------------------------------------
1. Emergency stationary CI    a. Change oil and     Minimize the
 RICE and black start          filter every 500      engine's time spent
 stationary CI RICE. \1\       hours of operation    at idle and
                               or annually,          minimize the
                               whichever comes       engine's startup
                               first; \2\            time at startup to
                              b. Inspect air         a period needed for
                               cleaner every 1,000   appropriate and
                               hours of operation    safe loading of the
                               or annually,          engine, not to
                               whichever comes       exceed 30 minutes,
                               first;.               after which time
                              c. Inspect all hoses   the non-startup
                               and belts every 500   emission
                               hours of operation    limitations
                               or annually,          apply.\3\
                               whichever comes
                               first, and replace
                               as necessary.\3\.

2. Non-Emergency, non-black   a. Change oil and
 start stationary CI RICE <    filter every 1,000
 100 HP.                       hours of operation
                               or annually,
                               whichever comes
                               first; \2\
                              b. Inspect air
                               cleaner every 1,000
                               hours of operation
                               or annually,
                               whichever comes
                               first;
                              c. Inspect all hoses
                               and belts every 500
                               hours of operation
                               or annually,
                               whichever comes
                               first, and replace
                               as necessary.\3\
3. Non-Emergency, non-black   Limit concentration
 start CI stationary RICE      of CO in the
 100 <= HP <= 300 HP.          stationary RICE
                               exhaust to 230
                               ppmvd or less at 15
                               percent O2.
4. Non-Emergency, non-black   a. Limit
 start CI stationary RICE      concentration of CO
 300 < HP <= 500.              in the stationary
                               RICE exhaust to 49
                               ppmvd or less at 15
                               percent O2; or
                              b. Reduce CO
                               emissions by 70
                               percent or more.
5. Non-Emergency, non-black   a. Limit
 start stationary CI RICE      concentration of CO
 >500 HP.                      in the stationary
                               RICE exhaust to 23
                               ppmvd or less at 15
                               percent O2; or
                              b. Reduce CO
                               emissions by 70
                               percent or more.
6. Emergency stationary SI    a. Change oil and
 RICE and black start          filter every 500
 stationary SI RICE.\1\        hours of operation
                               or annually,
                               whichever comes
                               first; \2\
                              b. Inspect spark
                               plugs every 1,000
                               hours of operation
                               or annually,
                               whichever comes
                               first;
                              c. Inspect all hoses
                               and belts every 500
                               hours of operation
                               or annually,
                               whichever comes
                               first, and replace
                               as necessary.\3\
7. Non-Emergency, non-black   a. Change oil and
 start stationary SI RICE <    filter every 1,440
 100 HP that are not 2SLB      hours of operation
 stationary RICE.              or annually,
                               whichever comes
                               first; \2\
                              b. Inspect spark
                               plugs every 1,440
                               hours of operation
                               or annually,
                               whichever comes
                               first;
                              c. Inspect all hoses
                               and belts every
                               1,440 hours of
                               operation or
                               annually, whichever
                               comes first, and
                               replace as
                               necessary.\3\
8. Non-Emergency, non-black   a. Change oil and
 start 2SLB stationary SI      filter every 4,320
 RICE < 100 HP.                hours of operation
                               or annually,
                               whichever comes
                               first; \2\
                              b. Inspect spark
                               plugs every 4,320
                               hours of operation
                               or annually,
                               whichever comes
                               first;
                              c. Inspect all hoses
                               and belts every
                               4,320 hours of
                               operation or
                               annually, whichever
                               comes first, and
                               replace as
                               necessary.\3\
9. Non-emergency, non-black   Limit concentration
 start 2SLB stationary RICE    of CO in the
 100 <= HP <= 500.             stationary RICE
                               exhaust to 225
                               ppmvd or less at 15
                               percent O2.
10. Non-emergency, non-black  Limit concentration
 start 4SLB stationary RICE    of CO in the
 100 <= HP <= 500.             stationary RICE
                               exhaust to 47 ppmvd
                               or less at 15
                               percent O2.
11. Non-emergency, non-black  Limit concentration
 start 4SRB stationary RICE    of formaldehyde in
 100 <= HP <= 500.             the stationary RICE
                               exhaust to 10.3
                               ppmvd or less at 15
                               percent O2.
12. Non-emergency, non-black  Limit concentration
 start landfill or digester    of CO in the
 gas-fired stationary RICE     stationary RICE
 100 <= HP <= 500.             exhaust to 177
                               ppmvd or less at 15
                               percent O2.
------------------------------------------------------------------------
\1\ If an emergency engine is operating during an emergency and it is
  not possible to shut down the engine in order to perform the work
  practice requirements on the schedule required in Table 2c of this
  subpart, or if performing the work practice on the required schedule
  would otherwise pose an unacceptable risk under Federal, State, or
  local law, the work practice can be delayed until the emergency is
  over or the unacceptable risk under Federal, State, or local law has
  abated. The work practice should be performed as soon as practicable
  after the emergency has ended or the unacceptable risk under Federal,
  State, or local law has abated. Sources must report any failure to
  perform the work practice on the schedule required and the Federal,
  State or local law under which the risk was deemed unacceptable.
\2\ Sources have the option to utilize an oil analysis program as
  described in Sec.   63.6625(i) in order to extend the specified oil
  change requirement in Table 2c of this subpart.
\3\ Sources can petition the Administrator pursuant to the requirements
  of 40 CFR 63.6(g) for alternative work practices.

0
19. Table 2d to Subpart ZZZZ of Part 63 is revised to read as follows:

Table 2d to Subpart ZZZZ of Part 63. Requirements for Existing
Stationary RICE Located at Area Sources of HAP Emissions

    As stated in Sec. Sec.  63.6603 and 63.6640, you must comply with
the following requirements for existing stationary RICE located at area
sources of HAP emissions:

------------------------------------------------------------------------
                                You must meet the
                                    following         During periods of
       For each . . .         requirement,  except  startup you must . .
                                during periods of             .
                                  startup . . .
------------------------------------------------------------------------
1. Non-Emergency, non-black   a. Change oil and     Minimize the
 start CI stationary RICE <=   filter every 1,000    engine's time spent
 300 HP.                       hours of operation    at idle and
                               or annually,          minimize the
                               whichever comes       engine's startup
                               first; \1\            time at startup to
                                                     a period needed for
                                                     appropriate and
                                                     safe loading of the
                                                     engine, not to
                                                     exceed 30 minutes,
                                                     after which time
                                                     the non-startup
                                                     emission
                                                     limitations apply.
                              b. Inspect air
                               cleaner every 1,000
                               hours of operation
                               or annually,
                               whichever comes
                               first;
                              c. Inspect all hoses
                               and belts every 500
                               hours of operation
                               or annually,
                               whichever comes
                               first, and replace
                               as necessary..
2. Non-Emergency, non-black   a. Limit
 start CI stationary RICE      concentration of CO
 300     concentration of CO
 500 HP.                       in the stationary
                               RICE exhaust to 23
                               ppmvd at 15 percent
                               O2; or
                              b. Reduce CO
                               emissions by 70
                               percent or more.
4. Emergency stationary CI    a. Change oil and
 RICE and black start          filter every 500
 stationary CI RICE.\2\        hours of operation
                               or annually,
                               whichever comes
                               first; \1\
                              b. Inspect air
                               cleaner every 1,000
                               hours of operation
                               or annually,
                               whichever comes
                               first; and
                              c. Inspect all hoses
                               and belts every 500
                               hours of operation
                               or annually,
                               whichever comes
                               first, and replace
                               as necessary.
5. Emergency stationary SI    a. Change oil and
 RICE; black start             filter every 500
 stationary SI RICE; non-      hours of operation
 emergency, non-black start    or annually,
 4SLB stationary RICE > 500    whichever comes
 HP that operate 24 hours or   first; \1\
 less per calendar year; non- b. Inspect spark
 emergency, non-black start    plugs every 1,000
 4SRB stationary RICE > 500    hours of operation
 HP that operate 24 hours or   or annually,
 less per calendar year.\2\    whichever comes
                               first; and.
                              c. Inspect all hoses
                               and belts every 500
                               hours of operation
                               or annually,
                               whichever comes
                               first, and replace
                               as necessary..
6. Non-emergency, non-black   a. Change oil and
 start 2SLB stationary RICE.   filter every 4,320
                               hours of operation
                               or annually,
                               whichever comes
                               first; \1\
                              b. Inspect spark
                               plugs every 4,320
                               hours of operation
                               or annually,
                               whichever comes
                               first; and
                              c. Inspect all hoses
                               and belts every
                               4,320 hours of
                               operation or
                               annually, whichever
                               comes first, and
                               replace as
                               necessary.
7. Non-emergency, non-black   a. Change oil and
 start 4SLB stationary RICE    filter every 1,440
 <= 500 HP.                    hours of operation
                               or annually,
                               whichever comes
                               first; \1\
                              b. Inspect spark
                               plugs every 1,440
                               hours of operation
                               or annually,
                               whichever comes
                               first; and
                              c. Inspect all hoses
                               and belts every
                               1,440 hours of
                               operation or
                               annually, whichever
                               comes first, and
                               replace as
                               necessary.
8. Non-emergency, non-black   a. Limit
 start 4SLB stationary RICE    concentration of CO
 > 500 HP.                     in the stationary
                               RICE exhaust to 47
                               ppmvd at 15 percent
                               O2; or
                              b. Reduce CO
                               emissions by 93
                               percent or more.
9. Non-emergency, non-black   a. Change oil and
 start 4SRB stationary RICE    filter every 1,440
 <= 500 HP.                    hours of operation
                               or annually,
                               whichever comes
                               first; \1\

                              b. Inspect spark
                               plugs every 1,440
                               hours of operation
                               or annually,
                               whichever comes
                               first; and
                              c. Inspect all hoses
                               and belts every
                               1,440 hours of
                               operation or
                               annually, whichever
                               comes first, and
                               replace as
                               necessary.
10. Non-emergency, non-black  a. Limit
 start 4SRB stationary RICE    concentration of
 > 500 HP.                     formaldehyde in the
                               stationary RICE
                               exhaust to 2.7
                               ppmvd at 15 percent
                               O2; or
                              b. Reduce
                               formaldehyde
                               emissions by 76
                               percent or more.
11. Non-emergency, non-black  a. Change oil and
 start landfill or digester    filter every 1,440
 gas-fired stationary RICE.    hours of operation
                               or annually,
                               whichever comes
                               first; \1\
                              b. Inspect spark
                               plugs every 1,440
                               hours of operation
                               or annually,
                               whichever comes
                               first; and
                              c. Inspect all hoses
                               and belts every
                               1,440 hours of
                               operation or
                               annually, whichever
                               comes first, and
                               replace as
                               necessary.
------------------------------------------------------------------------
\1\ Sources have the option to utilize an oil analysis program as
  described in Sec.   63.6625(i) in order to extend the specified oil
  change requirement in Table 2d of this subpart.
\2\ If an emergency engine is operating during an emergency and it is
  not possible to shut down the engine in order to perform the
  management practice requirements on the schedule required in Table 2d
  of this subpart, or if performing the management practice on the
  required schedule would otherwise pose an unacceptable risk under
  Federal, State, or local law, the management practice can be delayed
  until the emergency is over or the unacceptable risk under Federal,
  State, or local law has abated. The management practice should be
  performed as soon as practicable after the emergency has ended or the
  unacceptable risk under Federal, State, or local law has abated.
  Sources must report any failure to perform the management practice on
  the schedule required and the Federal, State or local law under which
  the risk was deemed unacceptable.

0
20. Table 3 to Subpart ZZZZ of Part 63 is revised to read as follows:

Table 3 to Subpart ZZZZ of Part 63. Subsequent Performance Tests

    As stated in Sec. Sec.  63.6615 and 63.6620, you must comply with
the following subsequent performance test requirements:

------------------------------------------------------------------------
                                  Complying with the
         For each . . .           requirement to . .    You must . . .
                                           .
------------------------------------------------------------------------
1. New or reconstructed 2SLB      Reduce CO           Conduct subsequent
 stationary RICE with a brake      emissions and not   performance tests
 horsepower > 500 located at       using a CEMS.       semiannually.\1\
 major sources; new or
 reconstructed 4SLB stationary
 RICE with a brake horsepower >=
 250 located at major sources;
 and new or reconstructed CI
 stationary RICE with a brake
 horsepower > 500 located at
 major sources.
2. 4SRB stationary RICE with a    Reduce              Conduct subsequent
 brake horsepower >= 5,000         formaldehyde        performance tests
 located at major sources.         emissions.          semiannually.\1\
3. Stationary RICE with a brake   Limit the           Conduct subsequent
 horsepower > 500 located at       concentration of    performance tests
 major sources and new or          formaldehyde in     semiannually.\1\
 reconstructed 4SLB stationary     the stationary
 RICE with a brake horsepower      RICE exhaust.
 250 <= HP <= 500 located at
 major sources.
4. Existing non-emergency, non-   Limit or reduce CO  Conduct subsequent
 black start CI stationary RICE    or formaldehyde     performance tests
 with a brake horsepower > 500     emissions.          every 8,760 hrs.
 that are not limited use                              or 3 years,
 stationary RICE; existing non-                        whichever comes
 emergency, non-black start 4SLB                       first.
 and 4SRB stationary RICE
 located at an area source of
 HAP emissions with a brake
 horsepower > 500 that are
 operated more than 24 hours per
 calendar year that are not
 limited use stationary RICE.

5. Existing non-emergency, non-   Limit or reduce CO  Conduct subsequent
 black start CI stationary RICE    or formaldehyde     performance tests
 with a brake horsepower > 500     emissions.          every 8,760 hrs.
 that are limited use stationary                       or 5 years,
 RICE; existing non-emergency,                         whichever comes
 non-black start 4SLB and 4SRB                         first.
 stationary RICE located at an
 area source of HAP emissions
 with a brake horsepower > 500
 that are operated more than 24
 hours per calendar year and are
 limited use stationary RICE.
------------------------------------------------------------------------
\1\ After you have demonstrated compliance for two consecutive tests,
  you may reduce the frequency of subsequent performance tests to
  annually. If the results of any subsequent annual performance test
  indicate the stationary RICE is not in compliance with the CO or
  formaldehyde emission limitation, or you deviate from any of your
  operating limitations, you must resume semiannual performance tests.

0
21. Table 4 to Subpart ZZZZ of Part 63 is revised to read as follows:

Table 4 to Subpart ZZZZ of Part 63--Requirements for Performance Tests

    As stated in Sec. Sec.  63.6610, 63.6611, 63.6612, 63.6620, and
63.6640, you must comply with the following requirements for
performance tests for stationary RICE:

----------------------------------------------------------------------------------------------------------------
                                  Complying with the                                           According to the
         For each . . .             requirement to .    You must . . .        Using . . .          following
                                          . .                                                 requirements . . .
----------------------------------------------------------------------------------------------------------------
1. 2SLB, 4SLB, and CI stationary  a. Reduce CO        i. Measure the O2   (1) Portable CO     (a) Using ASTM
 RICE.                             emissions.          at the inlet and    and O2 analyzer.    D6522-00 (2005)
                                                       outlet of the                           \a\ (incorporated
                                                       control device;                         by reference, see
                                                       and                                     Sec.   63.14).
                                                                                Measurements to
                                                                                determine O2 must
                                                                                be made at the
                                                                                same time as the
                                                                                measurements for
                                                                                CO concentration.
                                                      ii. Measure the CO  (1) Portable CO     (a) Using ASTM
                                                       at the inlet and    and O2 analyzer.    D6522-00 (2005) a
                                                       the outlet of the                       b (incorporated
                                                       control device.                         by reference, see
                                                                                Sec.   63.14) or
                                                                                Method 10 of 40
                                                                                CFR appendix A.
                                                                                The CO
                                                                                concentration
                                                                                must be at 15
                                                                                percent O2, dry
                                                                                basis.
2. 4SRB stationary RICE.........  a. Reduce           i. Select the       (1) Method 1 or 1A  (a) Sampling sites
                                   formaldehyde        sampling port       of 40 CFR part      must be located
                                   emissions.          location and the    60, appendix A      at the inlet and
                                                       number of           Sec.                outlet of the
                                                       traverse points;    63.7(d)(1)(i).      control device.
                                                       and
                                                      ii. Measure O2 at   (1) Method 3 or 3A  (a) Measurements
                                                       the inlet and       or 3B of 40 CFR     to determine O2
                                                       outlet of the       part 60, appendix   concentration
                                                       control device;     A, or ASTM Method   must be made at
                                                       and                 D6522-00m (2005).   the same time as
                                                                                the measurements
                                                                                for formaldehyde
                                                                                concentration.
                                                      iii. Measure        (1) Method 4 of 40  (a) Measurements
                                                       moisture content    CFR part 60,        to determine
                                                       at the inlet and    appendix A, or      moisture content
                                                       outlet of the       Test Method 320     must be made at
                                                       control device;     of 40 CFR part      the same time and
                                                       and                 63, appendix A,     location as the
                                                                           or ASTM D 6348-03.  measurements for
                                                                                formaldehyde
                                                                                concentration.
                                                      iv. Measure         (1) Method 320 or   (a) Formaldehyde
                                                       formaldehyde at     323 of 40 CFR       concentration
                                                       the inlet and the   part 63, appendix   must be at 15
                                                       outlet of the       A; or ASTM D6348-   percent O2, dry
                                                       control device.     03,\c\ provided     basis. Results of
                                                                           in ASTM D6348-03    this test consist
                                                                           Annex A5 (Analyte   of the average of
                                                                           Spiking             the three 1-hour
                                                                           Technique), the     or longer runs.
                                                                           percent R must be
                                                                           greater than or
                                                                           equal to 70 and
                                                                           less than or
                                                                           equal to 130.
3. Stationary RICE..............  a. Limit the        i. Select the       (1) Method 1 or 1A  (a) If using a
                                   concentration of    sampling port       of 40 CFR part      control device,
                                   formaldehyde or     location and the    60, appendix A      the sampling site
                                   CO in the           number of           Sec.                must be located
                                   stationary RICE     traverse points;    63.7(d)(1)(i).      at the outlet of
                                   exhaust.            and                                     the control
                                                                                device.

                                                      ii. Determine the   (1) Method 3 or 3A  (a) Measurements
                                                       O2 concentration    or 3B of 40 CFR     to determine O2
                                                       of the stationary   part 60, appendix   concentration
                                                       RICE exhaust at     A, or ASTM Method   must be made at
                                                       the sampling port   D6522-00 (2005).    the same time and
                                                       location; and                           location as the
                                                                                measurements for
                                                                                formaldehyde
                                                                                concentration.
                                                      iii. Measure        (1) Method 4 of 40  (a) Measurements
                                                       moisture content    CFR part 60,        to determine
                                                       of the stationary   appendix A, or      moisture content
                                                       RICE exhaust at     Test Method 320     must be made at
                                                       the sampling port   of 40 CFR part      the same time and
                                                       location; and       63, appendix A,     location as the
                                                                           or ASTM D 6348-03.  measurements for
                                                                                formaldehyde
                                                                                concentration.
                                                      iv. Measure         (1) Method 320 or   (a) Formaldehyde
                                                       formaldehyde at     323 of 40 CFR       concentration
                                                       the exhaust of      part 63, appendix   must be at 15
                                                       the stationary      A; or ASTM D6348-   percent O2, dry
                                                       RICE; or            03,\c\ provided     basis. Results of
                                                                           in ASTM D6348-03    this test consist
                                                                           Annex A5 (Analyte   of the average of
                                                                           Spiking             the three 1-hour
                                                                           Technique), the     or longer runs.
                                                                           percent R must be
                                                                           greater than or
                                                                           equal to 70 and
                                                                           less than or
                                                                           equal to 130.
                                                      v. Measure CO at    (1) Method 10 of    (a) CO
                                                       the exhaust of      40 CFR part 60,     Concentration
                                                       the stationary      appendix A, ASTM    must be at 15
                                                       RICE.               Method D6522-00     percent O2, dry
                                                                           (2005),\a\ Method   basis. Results of
                                                                           320 of 40 CFR       this test consist
                                                                           part 63, appendix   of the average of
                                                                           A, or ASTM D6348-   the three 1-hour
                                                                           03.                 longer runs.
----------------------------------------------------------------------------------------------------------------
\a\ You may also use Methods 3A and 10 as options to ASTM-D6522-00 (2005). You may obtain a copy of ASTM-D6522-
  00 (2005) from at least one of the following addresses: American Society for Testing and Materials, 100 Barr
  Harbor Drive, West Conshohocken, PA 19428-2959, or University Microfilms International, 300 North Zeeb Road,
  Ann Arbor, MI 48106. ASTM-D6522-00 (2005) may be used to test both CI and SI stationary RICE.
\b\ You may also use Method 320 of 40 CFR part 63, appendix A, or ASTM D6348-03.
\c\ You may obtain a copy of ASTM-D6348-03 from at least one of the following addresses: American Society for
  Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, or University Microfilms
  International, 300 North Zeeb Road, Ann Arbor, MI 48106.

0
22. Table 5 to Subpart ZZZZ of Part 63 is revised to read as follows:

Table 5 to Subpart ZZZZ of Part 63. Initial Compliance With Emission
Limitations and Operating Limitations

    As stated in Sec. Sec.  63.6612, 63.6625 and 63.6630, you must
initially comply with the emission and operating limitations as
required by the following:

------------------------------------------------------------------------
                                                           You have
                                  Complying with the     demonstrated
         For each . . .           requirement to . .  initial compliance
                                           .                if . . .
------------------------------------------------------------------------
1. New or reconstructed non-      a. Reduce CO        i. The average
 emergency 2SLB stationary RICE    emissions and       reduction of
 > 500 HP located at a major       using oxidation     emissions of CO
 source of HAP, new or             catalyst, and       determined from
 reconstructed non-emergency       using a CPMS.       the initial
 4SLB stationary RICE >= 250 HP                        performance test
 located at a major source of                          achieves the
 HAP, non-emergency stationary                         required CO
 CI RICE > 500 HP located at a                         percent
 major source of HAP, existing                         reduction; and
 non-emergency stationary CI                          ii. You have
 RICE > 500 HP located at an                           installed a CPMS
 area source of HAP, and                               to continuously
 existing non-emergency 4SLB                           monitor catalyst
 stationary RICE > 500 HP                              inlet temperature
 located at an area source of                          according to the
 HAP that are operated more than                       requirements in
 24 hours per calendar year.                           Sec.
                                                       63.6625(b); and
                                                      iii. You have
                                                       recorded the
                                                       catalyst pressure
                                                       drop and catalyst
                                                       inlet temperature
                                                       during the
                                                       initial
                                                       performance test.

2. New or reconstructed non-      a. Reduce CO        i. The average
 emergency 2SLB stationary RICE    emissions and not   reduction of
 > 500 HP located at a major       using oxidation     emissions of CO
 source of HAP, new or             catalyst.           determined from
 reconstructed non-emergency                           the initial
 4SLB stationary RICE >= 250 HP                        performance test
 located at a major source of                          achieves the
 HAP, non-emergency stationary                         required CO
 CI RICE > 500 HP located at a                         percent
 major source of HAP, existing                         reduction; and
 non-emergency stationary CI                          ii. You have
 RICE > 500 HP located at an                           installed a CPMS
 area source of HAP, and                               to continuously
 existing non-emergency 4SLB                           monitor operating
 stationary RICE > 500 HP                              parameters
 located at an area source of                          approved by the
 HAP that are operated more than                       Administrator (if
 24 hours per calendar year.                           any) according to
                                                       the requirements
                                                       in Sec.
                                                       63.6625(b); and
                                                      iii. You have
                                                       recorded the
                                                       approved
                                                       operating
                                                       parameters (if
                                                       any) during the
                                                       initial
                                                       performance test.
3. New or reconstructed non-      a. Reduce CO        i. You have
 emergency 2SLB stationary RICE    emissions, and      installed a CEMS
 > 500 HP located at a major       using a CEMS.       to continuously
 source of HAP, new or                                 monitor CO and
 reconstructed non-emergency                           either O2 or CO2
 4SLB stationary RICE >= 250 HP                        at both the inlet
 located at a major source of                          and outlet of the
 HAP, non-emergency stationary                         oxidation
 CI RICE > 500 HP located at a                         catalyst
 major source of HAP, existing                         according to the
 non-emergency stationary CI                           requirements in
 RICE > 500 HP located at an                           Sec.
 area source of HAP, and                               63.6625(a); and
 existing non-emergency 4SLB                          ii. You have
 stationary RICE > 500 HP                              conducted a
 located at an area source of                          performance
 HAP that are operated more than                       evaluation of
 24 hours per calendar year.                           your CEMS using
                                                       PS 3 and 4A of 40
                                                       CFR part 60,
                                                       appendix B; and
                                                      iii. The average
                                                       reduction of CO
                                                       calculated using
                                                       Sec.   63.6620
                                                       equals or exceeds
                                                       the required
                                                       percent
                                                       reduction. The
                                                       initial test
                                                       comprises the
                                                       first 4-hour
                                                       period after
                                                       successful
                                                       validation of the
                                                       CEMS. Compliance
                                                       is based on the
                                                       average percent
                                                       reduction
                                                       achieved during
                                                       the 4-hour
                                                       period.
4. Non-emergency 4SRB stationary  a. Reduce           i. The average
 RICE > 500 HP located at a        formaldehyde        reduction of
 major source of HAP, and          emissions and       emissions of
 existing non-emergency 4SRB       using NSCR.         formaldehyde
 stationary RICE > 500 HP                              determined from
 located at an area source of                          the initial
 HAP that are operated more than                       performance test
 24 hours per calendar year.                           is equal to or
                                                       greater than the
                                                       required
                                                       formaldehyde
                                                       percent
                                                       reduction; and
                                                      ii. You have
                                                       installed a CPMS
                                                       to continuously
                                                       monitor catalyst
                                                       inlet temperature
                                                       according to the
                                                       requirements in
                                                       Sec.
                                                       63.6625(b); and
                                                      iii. You have
                                                       recorded the
                                                       catalyst pressure
                                                       drop and catalyst
                                                       inlet temperature
                                                       during the
                                                       initial
                                                       performance test.
5. Non-emergency 4SRB stationary  a. Reduce           i. The average
 RICE > 500 HP located at a        formaldehyde        reduction of
 major source of HAP, and          emissions and not   emissions of
 existing non-emergency 4SRB       using NSCR.         formaldehyde
 stationary RICE > 500 HP                              determined from
 located at an area source of                          the initial
 HAP that are operated more than                       performance test
 24 hours per calendar year.                           is equal to or
                                                       greater than the
                                                       required
                                                       formaldehyde
                                                       percent
                                                       reduction; and
                                                      ii. You have
                                                       installed a CPMS
                                                       to continuously
                                                       monitor operating
                                                       parameters
                                                       approved by the
                                                       Administrator (if
                                                       any) according to
                                                       the requirements
                                                       in Sec.
                                                       63.6625(b); and
                                                      iii. You have
                                                       recorded the
                                                       approved
                                                       operating
                                                       parameters (if
                                                       any) during the
                                                       initial
                                                       performance test.
6. New or reconstructed non-      a. Limit the        i. The average
 emergency stationary RICE > 500   concentration of    formaldehyde
 HP located at a major source of   formaldehyde in     concentration,
 HAP, new or reconstructed non-    the stationary      corrected to 15
 emergency 4SLB stationary RICE    RICE exhaust and    percent O2, dry
 250 <= HP <=500 located at a      using oxidation     basis, from the
 major source of HAP, and          catalyst or NSCR.   three test runs
 existing non-emergency 4SRB                           is less than or
 stationary RICE > 500 HP.                             equal to the
                                                       formaldehyde
                                                       emission
                                                       limitation; and
                                                      ii. You have
                                                       installed a CPMS
                                                       to continuously
                                                       monitor catalyst
                                                       inlet temperature
                                                       according to the
                                                       requirements in
                                                       Sec.
                                                       63.6625(b); and
                                                      iii. You have
                                                       recorded the
                                                       catalyst pressure
                                                       drop and catalyst
                                                       inlet temperature
                                                       during the
                                                       initial
                                                       performance test.
7. New or reconstructed non-      a. Limit the        i. The average
 emergency stationary RICE > 500   concentration of    formaldehyde
 HP located at a major source of   formaldehyde in     concentration,
 HAP, new or reconstructed non-    the stationary      corrected to 15
 emergency 4SLB stationary RICE    RICE exhaust and    percent O2, dry
 250 <= HP <=500 located at a      not using           basis, from the
 major source of HAP, and          oxidation           three test runs
 existing non-emergency 4SRB       catalyst or NSCR.   is less than or
 stationary RICE > 500 HP.                             equal to the
                                                       formaldehyde
                                                       emission
                                                       limitation; and
                                                      ii. You have
                                                       installed a CPMS
                                                       to continuously
                                                       monitor operating
                                                       parameters
                                                       approved by the
                                                       Administrator (if
                                                       any) according to
                                                       the requirements
                                                       in Sec.
                                                       63.6625(b); and
                                                      iii. You have
                                                       recorded the
                                                       approved
                                                       operating
                                                       parameters (if
                                                       any) during the
                                                       initial
                                                       performance test.

8. Existing non-emergency         a. Reduce CO or     i. The average
 stationary RICE 100 <= HP <=      formaldehyde        reduction of
 500 located at a major source     emissions.          emissions of CO
 of HAP, and existing non-                             or formaldehyde,
 emergency stationary CI RICE                          as applicable
 300 < HP <= 500 located at an                         determined from
 area source of HAP.                                   the initial
                                                       performance test
                                                       is equal to or
                                                       greater than the
                                                       required CO or
                                                       formaldehyde, as
                                                       applicable,
                                                       percent
                                                       reduction.
9. Existing non-emergency         a. Limit the        i. The average
 stationary RICE 100 <= HP <=      concentration of    formaldehyde or
 500 located at a major source     formaldehyde or     CO concentration,
 of HAP, and existing non-         CO in the           as applicable,
 emergency stationary CI RICE      stationary RICE     corrected to 15
 300 < HP <= 500 located at an     exhaust.            percent O2, dry
 area source of HAP.                                   basis, from the
                                                       three test runs
                                                       is less than or
                                                       equal to the
                                                       formaldehyde or
                                                       CO emission
                                                       limitation, as
                                                       applicable.
------------------------------------------------------------------------

0
23. Table 6 to Subpart ZZZZ of Part 63 is revised to read as follows:

Table 6 to Subpart ZZZZ of Part 63. Continuous Compliance With Emission
Limitations, Operating Limitations, Work Practices, and Management
Practices

    As stated in Sec.  63.6640, you must continuously comply with the
emissions and operating limitations and work or management practices as
required by the following:

------------------------------------------------------------------------
                                                           You must
                                  Complying with the      demonstrate
         For each . . .           requirement to . .      continuous
                                           .           compliance by . .
                                                               .
------------------------------------------------------------------------
1. New or reconstructed non-      a. Reduce CO        i. Conducting
 emergency 2SLB stationary RICE    emissions and       semiannual
 > 500 HP located at a major       using an            performance tests
 source of HAP, new or             oxidation           for CO to
 reconstructed non-emergency       catalyst, and       demonstrate that
 4SLB stationary RICE >= 250 HP    using a CPMS.       the required CO
 located at a major source of                          percent reduction
 HAP, and new or reconstructed                         is achieved; \a\
 non-emergency CI stationary                           and
 RICE > 500 HP located at a                           ii. Collecting the
 major source of HAP.                                  catalyst inlet
                                                       temperature data
                                                       according to Sec.
                                                         63.6625(b); and
                                                      iii. Reducing
                                                       these data to 4-
                                                       hour rolling
                                                       averages; and
                                                      iv. Maintaining
                                                       the 4-hour
                                                       rolling averages
                                                       within the
                                                       operating
                                                       limitations for
                                                       the catalyst
                                                       inlet
                                                       temperature; and
                                                      v. Measuring the
                                                       pressure drop
                                                       across the
                                                       catalyst once per
                                                       month and
                                                       demonstrating
                                                       that the pressure
                                                       drop across the
                                                       catalyst is
                                                       within the
                                                       operating
                                                       limitation
                                                       established
                                                       during the
                                                       performance test.
2. New or reconstructed non-      a. Reduce CO        i. Conducting
 emergency 2SLB stationary RICE    emissions and not   semiannual
 > 500 HP located at a major       using an            performance tests
 source of HAP, new or             oxidation           for CO to
 reconstructed non-emergency       catalyst, and       demonstrate that
 4SLB stationary RICE >= 250 HP    using a CPMS.       the required CO
 located at a major source of                          percent reduction
 HAP, and new or reconstructed                         is achieved;\a\
 non-emergency CI stationary                           and
 RICE > 500 HP located at a                           ii. Collecting the
 major source of HAP.                                  approved
                                                       operating
                                                       parameter (if
                                                       any) data
                                                       according to Sec.
                                                         63.6625(b); and
                                                      iii. Reducing
                                                       these data to 4-
                                                       hour rolling
                                                       averages; and
                                                      iv. Maintaining
                                                       the 4-hour
                                                       rolling averages
                                                       within the
                                                       operating
                                                       limitations for
                                                       the operating
                                                       parameters
                                                       established
                                                       during the
                                                       performance test.
3. New or reconstructed non-      a. Reduce CO        i. Collecting the
 emergency 2SLB stationary RICE    emissions and       monitoring data
 > 500 HP located at a major       using a CEMS.       according to Sec.
 source of HAP, new or                                   63.6625(a),
 reconstructed non-emergency                           reducing the
 4SLB stationary RICE >= 250 HP                        measurements to 1-
 located at a major source of                          hour averages,
 HAP, new or reconstructed non-                        calculating the
 emergency stationary CI RICE >                        percent reduction
 500 HP located at a major                             of CO emissions
 source of HAP, existing non-                          according to Sec.
 emergency stationary CI RICE >                          63.6620; and
 500 HP, existing non-emergency                       ii. Demonstrating
 4SLB stationary RICE > 500 HP                         that the catalyst
 located at an area source of                          achieves the
 HAP that are operated more than                       required percent
 24 hours per calendar year.                           reduction of CO
                                                       emissions over
                                                       the 4-hour
                                                       averaging period;
                                                       and
                                                      iii. Conducting an
                                                       annual RATA of
                                                       your CEMS using
                                                       PS 3 and 4A of 40
                                                       CFR part 60,
                                                       appendix B, as
                                                       well as daily and
                                                       periodic data
                                                       quality checks in
                                                       accordance with
                                                       40 CFR part 60,
                                                       appendix F,
                                                       procedure 1.
4. Non-emergency 4SRB stationary  a. Reduce           i. Collecting the
 RICE > 500 HP located at a        formaldehyde        catalyst inlet
 major source of HAP.              emissions and       temperature data
                                   using NSCR.         according to Sec.
                                                         63.6625(b); and
                                                      ii. Reducing these
                                                       data to 4-hour
                                                       rolling averages;
                                                       and
                                                      iii. Maintaining
                                                       the 4-hour
                                                       rolling averages
                                                       within the
                                                       operating
                                                       limitations for
                                                       the catalyst
                                                       inlet
                                                       temperature; and

                                                      iv. Measuring the
                                                       pressure drop
                                                       across the
                                                       catalyst once per
                                                       month and
                                                       demonstrating
                                                       that the pressure
                                                       drop across the
                                                       catalyst is
                                                       within the
                                                       operating
                                                       limitation
                                                       established
                                                       during the
                                                       performance test.
5. Non-emergency 4SRB stationary  a. Reduce           i. Collecting the
 RICE > 500 HP located at a        formaldehyde        approved
 major source of HAP.              emissions and not   operating
                                   using NSCR.         parameter (if
                                                       any) data
                                                       according to Sec.
                                                         63.6625(b); and
                                                      ii. Reducing these
                                                       data to 4-hour
                                                       rolling averages;
                                                       and
                                                      iii. Maintaining
                                                       the 4-hour
                                                       rolling averages
                                                       within the
                                                       operating
                                                       limitations for
                                                       the operating
                                                       parameters
                                                       established
                                                       during the
                                                       performance test.
6. Non-emergency 4SRB stationary  a. Reduce           Conducting
 RICE with a brake HP >= 5,000     formaldehyde        semiannual
 located at a major source of      emissions.          performance tests
 HAP.                                                  for formaldehyde
                                                       to demonstrate
                                                       that the required
                                                       formaldehyde
                                                       percent reduction
                                                       is achieved.\a\
7. New or reconstructed non-      a. Limit the        i. Conducting
 emergency stationary RICE > 500   concentration of    semiannual
 HP located at a major source of   formaldehyde in     performance tests
 HAP and new or reconstructed      the stationary      for formaldehyde
 non-emergency 4SLB stationary     RICE exhaust and    to demonstrate
 RICE 250 <= HP <= 500 located     using oxidation     that your
 at a major source of HAP.         catalyst or NSCR.   emissions remain
                                                       at or below the
                                                       formaldehyde
                                                       concentration
                                                       limit;\a\ and
                                                      ii. Collecting the
                                                       catalyst inlet
                                                       temperature data
                                                       according to Sec.
                                                         63.6625(b); and
                                                      iii. Reducing
                                                       these data to 4-
                                                       hour rolling
                                                       averages; and
                                                      iv. Maintaining
                                                       the 4-hour
                                                       rolling averages
                                                       within the
                                                       operating
                                                       limitations for
                                                       the catalyst
                                                       inlet
                                                       temperature; and
                                                      v. Measuring the
                                                       pressure drop
                                                       across the
                                                       catalyst once per
                                                       month and
                                                       demonstrating
                                                       that the pressure
                                                       drop across the
                                                       catalyst is
                                                       within the
                                                       operating
                                                       limitation
                                                       established
                                                       during the
                                                       performance test.
8. New or reconstructed non-      a. Limit the        i. Conducting
 emergency stationary RICE > 500   concentration of    semiannual
 HP located at a major source of   formaldehyde in     performance tests
 HAP and new or reconstructed      the stationary      for formaldehyde
 non-emergency 4SLB stationary     RICE exhaust and    to demonstrate
 RICE 250 <= HP <= 500 located     not using           that your
 at a major source of HAP.         oxidation           emissions remain
                                   catalyst or NSCR.   at or below the
                                                       formaldehyde
                                                       concentration
                                                       limit;\a\ and
                                                      ii. Collecting the
                                                       approved
                                                       operating
                                                       parameter (if
                                                       any) data
                                                       according to Sec.
                                                         63.6625(b); and
                                                      iii. Reducing
                                                       these data to 4-
                                                       hour rolling
                                                       averages; and
                                                      iv. Maintaining
                                                       the 4-hour
                                                       rolling averages
                                                       within the
                                                       operating
                                                       limitations for
                                                       the operating
                                                       parameters
                                                       established
                                                       during the
                                                       performance test.
9. Existing emergency and black   a. Work or          i. Operating and
 start stationary RICE <= 500 HP   Management          maintaining the
 located at a major source of      practices.          stationary RICE
 HAP, existing non-emergency                           according to the
 stationary RICE < 100 HP                              manufacturer's
 located at a major source of                          emission-related
 HAP, existing emergency and                           operation and
 black start stationary RICE                           maintenance
 located at an area source of                          instructions; or
 HAP, existing non-emergency                          ii. Develop and
 stationary CI RICE <= 300 HP                          follow your own
 located at an area source of                          maintenance plan
 HAP, existing non-emergency                           which must
 2SLB stationary RICE located at                       provide to the
 an area source of HAP, existing                       extent
 non-emergency landfill or                             practicable for
 digester gas stationary SI RICE                       the maintenance
 located at an area source of                          and operation of
 HAP, existing non-emergency                           the engine in a
 4SLB and 4SRB stationary RICE                         manner consistent
 <= 500 HP located at an area                          with good air
 source of HAP, existing non-                          pollution control
 emergency 4SLB and 4SRB                               practice for
 stationary RICE > 500 HP                              minimizing
 located at an area source of                          emissions.
 HAP that operate 24 hours or
 less per calendar year.

10. Existing stationary CI RICE   a. Reduce CO or     i. Conducting
 > 500 HP that are not limited     formaldehyde        performance tests
 use stationary RICE, and          emissions, or       every 8,760 hours
 existing 4SLB and 4SRB            limit the           or 3 years,
 stationary RICE > 500 HP          concentration of    whichever comes
 located at an area source of      formaldehyde or     first, for CO or
 HAP that operate more than 24     CO in the           formaldehyde, as
 hours per calendar year and are   stationary RICE     appropriate, to
 not limited use stationary RICE.  exhaust, and        demonstrate that
                                   using oxidation     the required CO
                                   catalyst or NSCR.   or formaldehyde,
                                                       as appropriate,
                                                       percent reduction
                                                       is achieved or
                                                       that your
                                                       emissions remain
                                                       at or below the
                                                       CO or
                                                       formaldehyde
                                                       concentration
                                                       limit; and
                                                      ii. Collecting the
                                                       catalyst inlet
                                                       temperature data
                                                       according to Sec.
                                                         63.6625(b); and
                                                      iii. Reducing
                                                       these data to 4-
                                                       hour rolling
                                                       averages; and
                                                      iv. Maintaining
                                                       the 4-hour
                                                       rolling averages
                                                       within the
                                                       operating
                                                       limitations for
                                                       the catalyst
                                                       inlet
                                                       temperature; and
                                                      v. Measuring the
                                                       pressure drop
                                                       across the
                                                       catalyst once per
                                                       month and
                                                       demonstrating
                                                       that the pressure
                                                       drop across the
                                                       catalyst is
                                                       within the
                                                       operating
                                                       limitation
                                                       established
                                                       during the
                                                       performance test.
11. Existing stationary CI RICE   a. Reduce CO or     i. Conducting
 > 500 HP that are not limited     formaldehyde        performance tests
 use stationary RICE, and          emissions, or       every 8,760 hours
 existing 4SLB and 4SRB            limit the           or 3 years,
 stationary RICE > 500 HP          concentration of    whichever comes
 located at an area source of      formaldehyde or     first, for CO or
 HAP that operate more than 24     CO in the           formaldehyde, as
 hours per calendar year and are   stationary RICE     appropriate, to
 not limited use stationary RICE.  exhaust, and not    demonstrate that
                                   using oxidation     the required CO
                                   catalyst or NSCR.   or formaldehyde,
                                                       as appropriate,
                                                       percent reduction
                                                       is achieved or
                                                       that your
                                                       emissions remain
                                                       at or below the
                                                       CO or
                                                       formaldehyde
                                                       concentration
                                                       limit; and
                                                      ii. Collecting the
                                                       approved
                                                       operating
                                                       parameter (if
                                                       any) data
                                                       according to Sec.
                                                         63.6625(b); and
                                                      iii. Reducing
                                                       these data to 4-
                                                       hour rolling
                                                       averages; and
                                                      iv. Maintaining
                                                       the 4-hour
                                                       rolling averages
                                                       within the
                                                       operating
                                                       limitations for
                                                       the operating
                                                       parameters
                                                       established
                                                       during the
                                                       performance test.
12. Existing limited use CI       a. Reduce CO or     i. Conducting
 stationary RICE > 500 HP and      formaldehyde        performance tests
 existing limited use 4SLB and     emissions or        every 8,760 hours
 4SRB stationary RICE > 500 HP     limit the           or 5 years,
 located at an area source of      concentration of    whichever comes
 HAP that operate more than 24     formaldehyde or     first, for CO or
 hours per calendar year.          CO in the           formaldehyde, as
                                   stationary RICE     appropriate, to
                                   exhaust, and        demonstrate that
                                   using an            the required CO
                                   oxidation           or formaldehyde,
                                   catalyst or NSCR.   as appropriate,
                                                       percent reduction
                                                       is achieved or
                                                       that your
                                                       emissions remain
                                                       at or below the
                                                       CO or
                                                       formaldehyde
                                                       concentration
                                                       limit; and
                                                      ii. Collecting the
                                                       catalyst inlet
                                                       temperature data
                                                       according to Sec.
                                                         63.6625(b); and
                                                      iii. Reducing
                                                       these data to 4-
                                                       hour rolling
                                                       averages; and
                                                      iv. Maintaining
                                                       the 4-hour
                                                       rolling averages
                                                       within the
                                                       operating
                                                       limitations for
                                                       the catalyst
                                                       inlet
                                                       temperature; and
                                                      v. Measuring the
                                                       pressure drop
                                                       across the
                                                       catalyst once per
                                                       month and
                                                       demonstrating
                                                       that the pressure
                                                       drop across the
                                                       catalyst is
                                                       within the
                                                       operating
                                                       limitation
                                                       established
                                                       during the