3-Percent discount rate               7-Percent discount rate
----------------------------------------------------------------------------------------------------------------
Total monetized benefits \b\.........  $770 to $1,900...............  $690 to $1,700.
Total Compliance Costs \c\...........  $373.........................  $373.

Net Benefits.........................  $400 to $1,500...............  $320 to $1,300.
----------------------------------------------------------------------------------------------------------------
Non-Monetized Benefits...............                     Health effects from exposure to HAP.
                                                 Health effects from direct exposure to NO2 and ozone.
                                                      Health effects from PM2.5 exposure from VOC.
                                                                   Ecosystem effects.
                                                                 Visibility impairment.
----------------------------------------------------------------------------------------------------------------
\a\ All estimates are for the implementation year (2013) and are rounded to two significant figures.
\b\ The total monetized co-benefits reflect the human health benefits associated with reducing exposure to PM2.5
  through reductions of PM2.5 precursors, such as NOX and directly emitted PM2.5. Co-benefits are shown as a
  range from Pope, et al. (2002) to Laden, et al. (2006). These models assume that all fine particles,
  regardless of their chemical composition, are equally potent in causing premature mortality because the
  scientific evidence is not yet sufficient to allow differentiation of effects estimates by particle type.
\c\ The engineering compliance costs are annualized using a 7-percent discount rate.

    Table 5--Summary of the Monetized Benefits, Compliance Costs and Net Benefits for the 2010 Rule With the
                         Proposed Amendments to the Stationary SI Engine NESHAP in 2013
                                         [Millions of 2010 dollars] \a\
----------------------------------------------------------------------------------------------------------------
                                          3-Percent discount rate               7-Percent discount rate
----------------------------------------------------------------------------------------------------------------
Total monetized benefits \b\.........  $62 to $150..................  $55 to $140.
Total Compliance Costs \c\...........  $115.........................  $115.
Net Benefits.........................  $-53 to $35..................  $-60 to $25.
----------------------------------------------------------------------------------------------------------------
Non-Monetized Benefits...............                     Health effects from exposure to HAP.
                                                 Health effects from direct exposure to NO2 and ozone.
                                                      Health effects from PM2.5 exposure from VOC.
                                                                   Ecosystem effects.
                                                                 Visibility impairment.
----------------------------------------------------------------------------------------------------------------
\a\ All estimates are for the implementation year (2013) and are rounded to two significant figures.
\b\ The total monetized co-benefits reflect the human health benefits associated with reducing exposure to PM2.5
  through reductions of PM2.5 precursors, such as NOX and directly emitted PM2.5. Co-benefits are shown as a
  range from Pope, et al. (2002) to Laden, et al. (2006). These models assume that all fine particles,
  regardless of their chemical composition, are equally potent in causing premature mortality because the
  scientific evidence is not yet sufficient to allow differentiation of effects estimates by particle type.
\c\ The engineering compliance costs are annualized using a 7-percent discount rate.

    For more information on the cost-benefit analysis, please refer to
the RIA for these proposed amendments, which is available in the
docket.

B. Paperwork Reduction Act

    This action does not impose any new information collection burden.
This action does not impose an information collection burden because
the agency is not requiring any additional recordkeeping, reporting,
notification or other requirements in these proposed amendments. The
changes being proposed in this action do not affect information
collection, but include revisions to emission standards and other minor
issues. However, the OMB has previously approved the information
collection requirements contained in the existing regulations under the
provisions of the Paperwork Reduction Act, 44 U.S.C. 3501 et seq. and
has assigned OMB control number 2060-0548. The OMB control numbers for
the EPA's regulations in 40 CFR are listed in 40 CFR part 9.

C. Regulatory Flexibility Act

    The Regulatory Flexibility Act generally requires an agency to
prepare a regulatory flexibility analysis of any rule subject to notice
and comment rulemaking requirements under the Administrative Procedure
Act or any other statute unless the agency certifies that the rule will
not have a significant economic impact on a substantial number of small
entities. Small entities include small businesses, small organizations
and small governmental jurisdictions.
    For purposes of assessing the impacts of this rule on small
entities, small entity is defined as: (1) A small business as defined
by the Small Business Administration's (SBA) regulations at 13 CFR
121.201; (2) a small governmental jurisdiction that is a government of
a city, county, town, school district or special district with a
population of less than 50,000; and (3) a small organization that is
any not-for-profit enterprise which is independently owned and operated
and is not dominant in its field. The companies owning facilities with
affected RICE can be grouped into small and large categories using SBA
general size standard definitions. Size standards are based on industry
classification codes (i.e., North American Industrial Classification
System, or NAICS) that each company uses to identify the industry or
industries in which they operate. The SBA defines a small business in
terms of the maximum employment, annual sales, or annual energy-
generating capacity (for electricity generating units--EGUs) of the
owning entity. These thresholds vary by industry and are evaluated
based on the primary industry classification of the affected companies.
In cases where companies are classified by multiple NAICS codes, the
most conservative SBA definition (i.e., the NAICS code with the highest
employee or revenue size standard) was used.
    As mentioned earlier in this preamble, facilities across several
industries use affected CI and SI stationary RICE; therefore, a number
of size standards are utilized in this

analysis. For the 15 industries identified at the 6-digit NAICS code
represented in this analysis, the employment size standard (where it
applies) varies from 500 to 1,000 employees. The annual sales standard
(where it applies) is as low as 0.75 million dollars and as high as
33.5 million dollars. In addition, for the electric power generation
industry, the small business size standard is an ultimate parent entity
defined as having a total electric output of 4 million megawatt-hours
(MW-hr) in the previous fiscal year. The specific SBA size standard is
identified for each affected industry within the industry profile to
support this economic analysis.
    After considering the economic impacts of this proposed rule on
small entities, I certify that this action will not have a significant
economic impact on a substantial number of small entities. This
certification is based on the economic impact of this action to all
affected small entities across all industries affected. The percentage
of small entities impacted by this proposal having annualized costs of
greater than 1 percent of their sales is less than 2 percent according
to the small entity analysis. We conclude that there is no significant
economic impact on a substantial number of small entities for this
rule.
    For more information on the small entity impacts associated with
the rule, please refer to the Economic Impact and Small Business
Analyses in the public docket. These analyses can be found in the RIA
for each of the rules affected by this action.
    Although the proposed reconsideration rule would not have a
significant economic impact on a substantial number of small entities,
EPA nonetheless tried to reduce the impact of the rule on small
entities. When developing the revised standards, EPA took special steps
to ensure that the burdens imposed on small entities were minimal. EPA
conducted several meetings with industry trade associations to discuss
regulatory options and the corresponding burden on industry, such as
recordkeeping and reporting. In addition, as mentioned earlier in this
preamble, EPA proposes to reduce regulatory requirements for a variety
of area sources affected under each of the RICE rules with amendments
to the final RICE rules promulgated in 2010. We continue to be
interested in the potential impacts of this proposed rule on small
entities and welcome comments on issues related to such impacts.

D. Unfunded Mandates Reform Act of 1995

    This rule does not contain a federal mandate that may result in
expenditures of $100 million or more for state, local, and tribal
governments, in the aggregate, or the private sector in any one year.
The EPA is proposing management practices for certain existing engines
located at area sources and is proposing amendments that will provide
owners and operators with alternative and less expensive compliance
demonstration methods. As a result of these proposed changes, the EPA
anticipates a substantial reduction in the cost burden associated with
this rule. Thus, this rule is not subject to the requirements of
sections 202 or 205 of UMRA.
    This rule is also not subject to the requirements of section 203 of
UMRA because it contains no regulatory requirements that might
significantly or uniquely affect small governments. The changes being
proposed in this action by the agency will mostly affect stationary
engine owners and operators and will not affect small governments. The
proposed amendments will lead to a reduction in the cost burden.

E. Executive Order 13132: Federalism

    This action does not have federalism implications. It will not have
substantial direct effects on the states, on the relationship between
the national government and the states, or on the distribution of power
and responsibilities among the various levels of government, as
specified in Executive Order 13132. This proposed action primarily
affects private industry, and does not impose significant economic
costs on state or local governments. Thus, Executive Order 13132 does
not apply to this action. In the spirit of Executive Order 13132 and
consistent with the EPA policy to promote communications between the
EPA and state and local governments, the EPA specifically solicits
comment on this proposed action from state and local officials.

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

    This action does not have tribal implications, as specified in
Executive Order 13175 (65 FR 67249, November 9, 2000). It will not have
substantial direct effects on tribal governments, on the relationship
between the federal government and Indian tribes, or on the
distribution of power and responsibilities between the federal
government and Indian tribes, as specified in Executive Order 13175.
Thus, Executive Order 13175 does not apply to this action. The EPA
specifically solicits additional comment on this proposed action from
tribal officials.

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

    The EPA interprets Executive Order 13045 (62 FR 19885, April 23,
1997) as applying only to those regulatory actions that are based on
health or safety risks, such that the analysis required under section
5-501 of the Executive Order has the potential to influence the
regulation. This action is not subject to Executive Order 13045 because
it is based solely on technology performance.

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

    This action is not a ``significant energy action'' as defined in
Executive Order 13211 (66 FR 28355 (May 22, 2001)), because it is not
likely to have a significant adverse effect on the supply,
distribution, or use of energy. This action reduces the burden of the
rule on owners and operators of stationary engines by providing less
burdensome compliance demonstration methods to owners and operators and
greater flexibility in the operation of emergency engines. As a result
of these proposed changes, the EPA anticipates a substantial reduction
in the cost burden associated with this rule.

I. National Technology Transfer and Advancement Act

    Section 12(d) of the National Technology Transfer and Advancement
Act of 1995 (``NTTAA''), Public Law 104-113, 12(d) (15 U.S.C. 272 note)
directs EPA to use voluntary consensus standards in its regulatory
activities unless to do so would be inconsistent with applicable law or
otherwise impractical. Voluntary consensus standards are technical
standards (e.g., materials specifications, test methods, sampling
procedures, and business practices) that are developed or adopted by
voluntary consensus standards bodies. NTTAA directs EPA to provide
Congress, through OMB, explanations when the agency decides not to use
available and applicable voluntary consensus standards.
    This proposed rulemaking involves technical standards. The EPA
proposes to use EPA Method 25A of 40 CFR part 60, appendix A. While the
agency identified two voluntary consensus standards as being
potentially

applicable, we do not propose to use it in this rulemaking. The two
candidate voluntary consensus standards, ISO 14965:2000(E) and EN 12619
(1999), identified would not be practical due to lack of equivalency,
documentation, validation data and other important technical and policy
considerations. The search and review results have been documented and
are placed in the docket for the proposed rule.
    EPA welcomes comments on this aspect of the proposed rulemaking
and, specifically, invites the public to identify potentially-
applicable voluntary consensus standards and to explain why such
standards should be used in this regulation.

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

    Executive Order 12898 (59 FR 7629 (February 16, 1994)) establishes
federal executive policy on environmental justice. Its main provision
directs federal agencies, to the greatest extent practicable and
permitted by law, to make environmental justice part of their mission
by identifying and addressing, as appropriate, disproportionately high
and adverse human health or environmental effects of their programs,
policies and activities on minority populations and low-income
populations in the United States.
    The EPA has concluded that it is not feasible to determine whether
there would be disproportionately high and adverse human health or
environmental effects on minority, low income or indigenous populations
from the reconsideration of this final rule, as the EPA does not have
specific information about the location of the stationary RICE affected
by this rule.

List of Subjects

40 CFR Part 60

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

40 CFR Part 63

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

    Dated: May 22, 2012.
Lisa P. Jackson,
Administrator.

    For the reasons stated in the preamble, title 40, chapter I of the
Code of Federal Regulations is proposed to be amended as follows:

PART 60--[AMENDED]

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

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

Subpart IIII--[Amended]

    1. Section 60.4207 is amended by revising paragraph (b) to read as
follows:

Sec.  60.4207  What fuel requirements must I meet if I am an owner or
operator of a stationary CI internal combustion engine subject to this
subpart?

* * * * *
    (b) Beginning October 1, 2010, owners and operators of stationary
CI ICE subject to this subpart with a displacement of less than 30
liters per cylinder that use diesel fuel must use diesel fuel that
meets the requirements of 40 CFR 80.510(b) for nonroad diesel fuel,
except that any existing diesel fuel purchased (or otherwise obtained)
prior to October 1, 2010, may be used until depleted.
* * * * *
    2. Section 60.4211 is amended by revising paragraph (f) to read as
follows:

Sec.  60.4211  What are my compliance requirements if I am an owner or
operator of a stationary CI internal combustion engine?

* * * * *
    (f) If you own or operate an emergency stationary ICE, you must
operate the emergency stationary ICE according to the requirements in
paragraphs (f)(1) through (3) of this section. In order for the engine
to be considered an emergency stationary ICE under this subpart, any
operation other than emergency operation, maintenance and testing,
emergency demand response, and operation in non-emergency situations
for 50 hours per year, as described in paragraphs (f)(1) through (3) of
this section, is prohibited. If you do not operate the engine according
to the requirements in paragraphs (f)(1) through (3) of this section,
the engine will not be considered an emergency engine under this
subpart and must meet all requirements for non-emergency engines. An
engine that exceeds the calendar year limitations on non-emergency
operation will be considered a non-emergency engine and subject to the
requirements for non-emergency engines for the remaining life of the
engine.
    (1) There is no time limit on the use of emergency stationary ICE
in emergency situations.
    (2) You may operate your emergency stationary ICE for any
combination of the purposes specified in paragraphs (f)(2)(i) through
(iii) of this section for a maximum of 100 hours per calendar year. Any
operation for non-emergency situations as allowed by paragraph (f)(3)
of this section counts as part of the 100 hours per calendar year
allowed by this paragraph (f)(2).
    (i) Emergency stationary ICE may be operated for maintenance checks
and readiness testing, provided that the tests are recommended by
federal, state or local government, the manufacturer, the vendor, the
regional transmission authority or equivalent balancing authority and
transmission operator, or the insurance company associated with the
engine. 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 ICE beyond 100
hours per calendar year.
    (ii) Emergency stationary ICE may be operated for emergency demand
response for periods in which the regional transmission authority or
equivalent balancing authority and transmission operator has declared
an Energy Emergency Alert Level 2 (EEA Level 2) as defined in the North
American Electric Reliability Corporation Reliability Standard EOP-002-
3, Capacity and Energy Emergencies.
    (iii) Emergency stationary ICE may be operated for periods where
there is a deviation of voltage or frequency of 5 percent or greater
below standard voltage or frequency.
    (3) Emergency stationary ICE may be operated for up to 50 hours per
calendar year in non-emergency situations. The 50 hours of operation in
non-emergency situations are counted as part of the 100 hours per
calendar year for maintenance and testing and emergency demand response
provided in paragraph (f)(2) of this section. The 50 hours per year for
non-emergency situations cannot be used for peak shaving or non-
emergency demand response, or to otherwise supply power as part of a
financial arrangement with another entity.
* * * * *
    3. Section 60.4219 is amended by revising the definition of
``Emergency stationary internal combustion engine'' to read as follows:

Sec.  60.4219  What definitions apply to this subpart?

* * * * *

    Emergency stationary internal combustion engine means any
stationary reciprocating internal combustion engine that meets all of
the criteria in paragraphs (1) through (3) of this definition. All
emergency stationary ICE must comply with the requirements specified in
Sec.  60.4211(f) in order to be considered emergency stationary ICE. If
the engine does not comply with the requirements specified in Sec.
60.4211(f), then it is not considered to be an emergency stationary ICE
under this subpart.
    (1) The stationary ICE is operated to provide electrical power or
mechanical work during an emergency situation. Examples include
stationary ICE 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 ICE used to pump water in the case of fire or flood, etc.
    (2) The stationary ICE is operated under limited circumstances for
situations not included in paragraph (1) of this definition, as
specified in Sec.  60.4211(f).
    (3) The stationary ICE operates as part of a financial arrangement
with another entity in situations not included in paragraph (1) of this
definition only as allowed in Sec.  60.4211(f)(2)(ii) or (iii).
* * * * *

Subpart JJJJ--[Amended]

    4. Section 60.4231 is amended by revising paragraphs (b) through
(d) to read as follows:

Sec.  60.4231  What emission standards must I meet if I am a
manufacturer of stationary SI internal combustion engines or equipment
containing such engines?

* * * * *
    (b) Stationary SI internal combustion engine manufacturers must
certify their stationary SI ICE with a maximum engine power greater
than 19 KW (25 HP) (except emergency stationary ICE with a maximum
engine power greater than 25 HP and less than 130 HP) that use gasoline
and that are manufactured on or after the applicable date in Sec.
60.4230(a)(2), or manufactured on or after the applicable date in Sec.
60.4230(a)(4) for emergency stationary ICE with a maximum engine power
greater than or equal to 130 HP, to the certification emission
standards and other requirements for new nonroad SI engines in 40 CFR
part 1048. Stationary SI internal combustion engine manufacturers must
certify their emergency stationary SI ICE greater than 25 HP and less
than 130 HP that use gasoline and that are manufactured on or after the
applicable date in Sec.  60.4230(a)(4) to the Phase 1 emission
standards in 40 CFR 90.103, applicable to class II engines, and other
requirements for new nonroad SI engines in 40 CFR part 90. Stationary
SI internal combustion engine manufacturers may certify their
stationary SI ICE with a maximum engine power less than or equal to 30
KW (40 HP) with a total displacement less than or equal to 1,000 cubic
centimeters (cc) that use gasoline to the certification emission
standards and other requirements for new nonroad SI engines in 40 CFR
part 90.
    (c) Stationary SI internal combustion engine manufacturers must
certify their stationary SI ICE with a maximum engine power greater
than 19 KW (25 HP) (except emergency stationary ICE with a maximum
engine power greater than 25 HP and less than 130 HP) that are rich
burn engines that use LPG and that are manufactured on or after the
applicable date in Sec.  60.4230(a)(2), or manufactured on or after the
applicable date in Sec.  60.4230(a)(4) for emergency stationary ICE
with a maximum engine power greater than or equal to 130 HP, to the
certification emission standards and other requirements for new nonroad
SI engines in 40 CFR part 1048. Stationary SI internal combustion
engine manufacturers must certify their emergency stationary SI ICE
greater than 25 HP and less than 130 HP that are rich burn engines that
use LPG and that are manufactured on or after the applicable date in
Sec.  60.4230(a)(4) to the Phase 1 emission standards in 40 CFR 90.103,
applicable to class II engines, and other requirements for new nonroad
SI engines in 40 CFR part 90. Stationary SI internal combustion engine
manufacturers may certify their stationary SI ICE with a maximum engine
power less than or equal to 30 KW (40 HP) with a total displacement
less than or equal to 1,000 cc that are rich burn engines that use LPG
to the certification emission standards and other requirements for new
nonroad SI engines in 40 CFR part 90.
    (d) Stationary SI internal combustion engine manufacturers who
choose to certify their stationary SI ICE with a maximum engine power
greater than 19 KW (25 HP) and less than 75 KW (100 HP) (except
gasoline and rich burn engines that use LPG and emergency stationary
ICE with a maximum engine power greater than 25 HP and less than 130
HP) under the voluntary manufacturer certification program described in
this subpart must certify those engines to the certification emission
standards for new nonroad SI engines in 40 CFR part 1048. Stationary SI
internal combustion engine manufacturers who choose to certify their
emergency stationary SI ICE greater than 25 HP and less than 130 HP
(except gasoline and rich burn engines that use LPG), must certify
those engines to the Phase 1 emission standards in 40 CFR 90.103,
applicable to class II engines, for new nonroad SI engines in 40 CFR
part 90. Stationary SI internal combustion engine manufacturers may
certify their stationary SI ICE with a maximum engine power less than
or equal to 30 KW (40 HP) with a total displacement less than or equal
to 1,000 cc (except gasoline and rich burn engines that use LPG) to the
certification emission standards for new nonroad SI engines in 40 CFR
part 90. For stationary SI ICE with a maximum engine power greater than
19 KW (25 HP) and less than 75 KW (100 HP) (except gasoline and rich
burn engines that use LPG and emergency stationary ICE with a maximum
engine power greater than 25 HP and less than 130 HP) manufactured
prior to January 1, 2011, manufacturers may choose to certify these
engines to the standards in Table 1 to this subpart applicable to
engines with a maximum engine power greater than or equal to 100 HP and
less than 500 HP.
* * * * *
    5. Section 60.4243 is amended by revising paragraph (d) to read as
follows:

Sec.  60.4243  What are my compliance requirements if I am an owner or
operator of a stationary SI internal combustion engine?

* * * * *
    (d) If you own or operate an emergency stationary ICE, you must
operate the emergency stationary ICE according to the requirements in
paragraphs (d)(1) through (3) of this section. In order for the engine
to be considered an emergency stationary ICE under this subpart, any
operation other than emergency operation, maintenance and testing,
emergency demand response, and operation in non-emergency situations
for 50 hours per year, as described in paragraphs (d)(1) through (3) of
this section, is prohibited. If you do not operate the engine according
to the requirements in paragraphs (d)(1) through (3) of this section,
the engine will not be considered an emergency engine under this
subpart and must meet all requirements for non-emergency engines. An
engine that exceeds the calendar year limitations on non-emergency
operation will be considered

a non-emergency engine and subject to the requirements for non-
emergency engines for the remaining life of the engine.
    (1) There is no time limit on the use of emergency stationary ICE
in emergency situations.
    (2) You may operate your emergency stationary ICE for any
combination of the purposes specified in paragraphs (d)(2)(i) through
(iii) of this section for a maximum of 100 hours per calendar year. Any
operation for non-emergency situations as allowed by paragraph (d)(3)
of this section counts as part of the 100 hours per calendar year
allowed by this paragraph (d)(2).
    (i) Emergency stationary ICE may be operated for maintenance checks
and readiness testing, provided that the tests are recommended by
federal, state, or local government, the manufacturer, the vendor, the
regional transmission authority or equivalent balancing authority and
transmission operator, or the insurance company associated with the
engine. 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 ICE beyond 100
hours per calendar year.
    (ii) Emergency stationary ICE may be operated for emergency demand
response for periods in which the regional transmission authority or
equivalent balancing authority and transmission operator has declared
an Energy Emergency Alert Level 2 (EEA Level 2) as defined in the North
American Electric Reliability Corporation Reliability Standard EOP-002-
3, Capacity and Energy Emergencies.
    (iii) Emergency stationary ICE may be operated for periods where
there is a deviation of voltage or frequency of 5 percent or greater
below standard voltage or frequency.
    (3) Emergency stationary ICE may be operated for up to 50 hours per
calendar year in non-emergency situations. The 50 hours of operation in
non-emergency situations are counted as part of the 100 hours per
calendar year for maintenance and testing and emergency demand response
provided in paragraph (d)(2) of this section. The 50 hours per year for
non-emergency situations cannot be used for peak shaving or non-
emergency demand response, or to otherwise supply power as part of a
financial arrangement with another entity.
* * * * *
    6. Section 60.4248 is amended by revising the definition of
``Emergency stationary internal combustion engine'' to read as follows:

Sec.  60.4248  What definitions apply to this subpart?

* * * * *
    Emergency stationary internal combustion engine means any
stationary reciprocating internal combustion engine that meets all of
the criteria in paragraphs (1) through (3) of this definition. All
emergency stationary ICE must comply with the requirements specified in
Sec.  60.4243(d) in order to be considered emergency stationary ICE. If
the engine does not comply with the requirements specified in Sec.
60.4243(d), then it is not considered to be an emergency stationary ICE
under this subpart.
    (1) The stationary ICE is operated to provide electrical power or
mechanical work during an emergency situation. Examples include
stationary ICE 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 ICE used to pump water in the case of fire or flood, etc.
    (2) The stationary ICE is operated under limited circumstances for
situations not included in paragraph (1) of this definition, as
specified in Sec.  60.4243(d).
    (3) The stationary ICE operates as part of a financial arrangement
with another entity in situations not included in paragraph (1) of this
definition only as allowed in Sec.  60.4243(d)(2)(ii) or (iii).
* * * * *
    7. Table 2 to subpart JJJJ of part 60 is revised to read as
follows:
    As stated in Sec.  60.4244, you must comply with the following
requirements for performance tests within 10 percent of 100 percent
peak (or the highest achievable) load:

                     Table 2 to Subpart JJJJ of Part 60--Requirements for Performance Tests
----------------------------------------------------------------------------------------------------------------
                                                                                According to the
            For each              Complying with the       You must              Using             following
                                     requirement to                                              requirements
----------------------------------------------------------------------------------------------------------------
1. Stationary SI internal         a. limit the        i. Select the       (1) Method 1 or 1A  (a) If using a
 combustion engine demonstrating   concentration of    sampling port       of 40 CFR part      control device,
 compliance according to Sec.      NOX in the          location and the    60, appendix A or   the sampling site
 60.4244.                          stationary SI       number of           ASTM Method D6522-  must be located
                                   internal            traverse points.    00 (2005) \a\.      at the outlet of
                                   combustion engine                                           the control
                                   exhaust.                                                    device.
                                                      ii. Determine the   (2) Method 3, 3A,   (b) Measurements
                                                       O2 concentration    or 3B \b\ of 40     to determine O2
                                                       of the stationary   CFR part 60,        concentration
                                                       internal            appendix A or       must be made at
                                                       combustion engine   ASTM Method D6522-  the same time as
                                                       exhaust at the      00 (2005) \a\.      the measurements
                                                       sampling port                           for NOX
                                                       location.                               concentration.
                                                      iii. If necessary,  (3) Method 2 or 19
                                                       determine the       of 40 CFR part 60.
                                                       exhaust flowrate
                                                       of the stationary
                                                       internal
                                                       combustion engine
                                                       exhaust.
                                                      iv. If necessary,   (4) Method 4 of 40  (c) Measurements
                                                       measure moisture    CFR part 60,        to determine
                                                       content of the      appendix A,         moisture must be
                                                       stationary          Method 320 of 40    made at the same
                                                       internal            CFR part 63,        time as the
                                                       combustion engine   appendix A, or      measurement for
                                                       exhaust at the      ASTM D 6348-03      NOX
                                                       sampling port       (incorporated by    concentration.
                                                       location; and.      reference, see
                                                                           Sec.   60.17).

                                                      v. Measure NOX at   (5) Method 7E of    (d) Results of
                                                       the exhaust of      40 CFR part 60,     this test consist
                                                       the stationary      appendix A,         of the average of
                                                       internal            Method D6522-00     the three 1-hour
                                                       combustion engine.  (2005) \a\,         or longer runs.
                                                                           Method 320 of 40
                                                                           CFR part 63,
                                                                           appendix A, or
                                                                           ASTM D 6348-03
                                                                           (incorporated by
                                                                           reference, see
                                                                           Sec.   60.17).
                                  b. limit the        i. Select the       (1) Method 1 or 1A  (a) If using a
                                   concentration of    sampling port       of 40 CFR part      control device,
                                   CO in the           location and the    60, appendix A or   the sampling site
                                   stationary SI       number of           ASTM Method D6522-  must be located
                                   internal            traverse points.    00 (2005) \a\.      at the outlet of
                                   combustion engine                                           the control
                                   exhaust.                                                    device.
                                                      ii. Determine the   (2) Method 3, 3A,   (b) Measurements
                                                       O2 concentration    or 3B \b\ of 40     to determine O2
                                                       of the stationary   CFR part 60,        concentration
                                                       internal            appendix A or       must be made at
                                                       combustion engine   ASTM Method D6522-  the same time as
                                                       exhaust at the      00 (2005) \a\.      the measurements
                                                       sampling port                           for CO
                                                       location.                               concentration.
                                                      iii. If necessary,  (3) Method 2 or 19
                                                       determine the       of 40 CFR part 60.
                                                       exhaust flowrate
                                                       of the stationary
                                                       internal
                                                       combustion engine
                                                       exhaust.
                                                      iv. If necessary,   (4) Method 4 of 40  (c) Measurements
                                                       measure moisture    CFR part 60,        to determine
                                                       content of the      appendix A,         moisture must be
                                                       stationary          Method 320 of 40    made at the same
                                                       internal            CFR part 63,        time as the
                                                       combustion engine   appendix A, or      measurement for
                                                       exhaust at the      ASTM D 6348-03      CO concentration.
                                                       sampling port       (incorporated by
                                                       location; and.      reference, see
                                                                           Sec.   60.17).
                                                      v. Measure CO at    (5) Method 10 of    (d) Results of
                                                       the exhaust of      40 CFR part 60,     this test consist
                                                       the stationary      appendix A, ASTM    of the average of
                                                       internal            Method D6522-00     the three 1-hour
                                                       combustion engine.  (2005) \a\,         or longer runs.
                                                                           Method 320 of 40
                                                                           CFR part 63,
                                                                           appendix A, or
                                                                           ASTM D 6348-03
                                                                           (incorporated by
                                                                           reference, see
                                                                           Sec.   60.17).
                                  c. limit the        i. Select the       (1) Method 1 or 1A  (a) If using a
                                   concentration of    sampling port       of 40 CFR part      control device,
                                   VOC in the          location and the    60, appendix A.     the sampling site
                                   stationary SI       number of                               must be located
                                   internal            traverse points.                        at the outlet of
                                   combustion engine                                           the control
                                   exhaust.                                                    device.
                                                      ii. Determine the   (2) Method 3, 3A,   (b) Measurements
                                                       O2 concentration    or 3B\b\ of 40      to determine O2
                                                       of the stationary   CFR part 60,        concentration
                                                       internal            appendix A or       must be made at
                                                       combustion engine   ASTM Method D6522-  the same time as
                                                       exhaust at the      00 (2005)\ a\.      the measurements
                                                       sampling port                           for VOC
                                                       location.                               concentration.
                                                      iii. If necessary,  (3) Method 2 or 19
                                                       determine the       of 40 CFR part 60.
                                                       exhaust flowrate
                                                       of the stationary
                                                       internal
                                                       combustion engine
                                                       exhaust.
                                                      iv. If necessary,   (4) Method 4 of 40  (c) Measurements
                                                       measure moisture    CFR part 60,        to determine
                                                       content of the      appendix A,         moisture must be
                                                       stationary          Method 320 of 40    made at the same
                                                       internal            CFR part 63,        time as the
                                                       combustion engine   appendix A, or      measurement for
                                                       exhaust at the      ASTM D 6348-03      VOC
                                                       sampling port       (incorporated by    concentration.
                                                       location; and.      reference, see
                                                                           Sec.   60.17).

                                                      v. Measure VOC at   (5) Methods 25A     (d) Results of
                                                       the exhaust of      and 18 of 40 CFR    this test consist
                                                       the stationary      part 60, appendix   of the average of
                                                       internal            A, Method 25A       the three 1-hour
                                                       combustion engine.  with the use of a   or longer runs.
                                                                           methane cutter as
                                                                           described in 40
                                                                           CFR 1065.265,
                                                                           Method 18 of 40
                                                                           CFR part 60,
                                                                           appendix A c d,
                                                                           Method 320 of 40
                                                                           CFR part 63,
                                                                           appendix A, or
                                                                           ASTM D 6348-03
                                                                           (incorporated by
                                                                           reference, see
                                                                           Sec.   60.17).
----------------------------------------------------------------------------------------------------------------
\a\ ASTM D6522-00 is incorporated by reference; see 40 CFR 60.17. Also, you may petition the Administrator for
  approval to use alternative methods for portable analyzer.
\b\ You may use ASME PTC 19.10-1981, Flue and Exhaust Gas Analyses, for measuring the O2 content of the exhaust
  gas as an alternative to EPA Method 3B.
\c\ You may use EPA Method 18 of 40 CFR part 60, appendix A, provided that you conduct an adequate presurvey
  test prior to the emissions test, such as the one described in OTM 11 on EPA's Web site (http://www.epa.gov/ttn/emc/prelim/otm11.pdf).
\d\ You may use ASTM D6420-99 (2004), Test Method for Determination of Gaseous Organic Compounds by Direct
  Interface Gas Chromatography/Mass Spectrometry as an alternative to EPA Method 18 for measuring total
  nonmethane organic.

PART 63--[AMENDED]

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

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

Subpart ZZZZ--[Amended]

    9. Section 63.6585 is amended by adding paragraph (f) to read as
follows:

Sec.  63.6585  Am I subject to this subpart?

* * * * *
    (f) The emergency stationary RICE listed in paragraphs (f)(1)
through (3) of this section are not subject to this subpart. The
stationary RICE must meet the definition of an emergency stationary
RICE in Sec.  63.6675, which includes operating according to the
provisions specified in Sec.  63.6640(f).
    (1) Existing residential emergency stationary RICE located at an
area source of HAP emissions.
    (2) Existing commercial emergency stationary RICE located at an
area source of HAP emissions.
    (3) Existing institutional emergency stationary RICE located at an
area source of HAP emissions.

Sec.  63.6590  [Amended]

    10. Section 63.6590 is amended by removing paragraphs (b)(3)(vi)
through (viii).
    11. 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, operating limitations and
other requirements 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, operating limitations,
and other requirements 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, operating limitations,
and other requirements no later than October 19, 2013.
* * * * *
    12. Section 63.6602 is revised to read as follows:

Sec.  63.6602  What emission limitations and other requirements 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 and
other requirements 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.
    13. Section 63.6603 is amended by:
    a. Revising the section heading;
    b. Revising paragraph (b); and
    c. Adding paragraphs (c) through (e) to read as follows:

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

* * * * *
    (b) If you own or operate an existing stationary non-emergency CI
RICE with a site rating of more than 300 HP located at an area source
of HAP that meets either paragraph (b)(1) or (b)(2) of this section,
you do not have to meet the numerical CO emission limitations specified
in Table 2d of this subpart. Existing stationary non-emergency CI RICE
with a site rating of more than 300 HP located at an area source of HAP
that meet either paragraph (b)(1) or (b)(2) of this section must meet
the management practices that are shown for stationary non-emergency CI
RICE with a site rating of less than or equal to 300 HP in Table 2d of
this subpart.
    (1) The area source is located in an area of Alaska that is not
accessible by the Federal Aid Highway System (FAHS).
    (2) The stationary RICE is located at an area source that meets
paragraphs

(b)(2)(i), (b)(2)(ii), and (b)(2)(iii) of this section.
    (i) The only connection to the FAHS is through the Alaska Marine
Highway System (AMHS), or the stationary RICE operation is within an
isolated grid in Alaska that is not connected to the statewide
electrical grid referred to as the Alaska Railbelt Grid.
    (ii) At least 10 percent of the power generated by the stationary
RICE on an annual basis is used for residential purposes.
    (iii) The generating capacity of the area source is less than 12
megawatts, or the stationary RICE is used exclusively for backup power
for renewable energy and is used less than 500 hrs per year on a 10
year rolling average.
    (c) If you own or operate an existing non-emergency CI RICE with a
site rating of more than 300 HP located at an area source of HAP
emissions that is certified to the Tier 1 or Tier 2 emission standards
in Table 1 of 40 CFR 89.112 and that is subject to an enforceable state
or local standard that requires the engine to be replaced no later than
June 1, 2018, you may until January 1, 2015, or 12 years after the
installation date of the engine (whichever is later), but not later
than June 1, 2018, choose to comply with the management practices that
are shown for stationary non-emergency CI RICE with a site rating of
less than or equal to 300 HP in Table 2d of this subpart instead of the
applicable emission limitations in Table 2d, operating limitations in
Table 2b, and crankcase ventilation system requirements in Sec.
63.6625(g). You must comply with the emission limitations in Table 2d
and operating limitations in Table 2b that apply for non-emergency CI
RICE with a site rating of more than 300 HP located at an area source
of HAP emissions by January 1, 2015, or 12 years after the installation
date of the engine (whichever is later), but not later than June 1,
2018. You must also comply with the crankcase ventilation system
requirements in Sec.  63.6625(g) by January 1, 2015, or 12 years after
the installation date of the engine (whichever is later), but not later
than June 1, 2018.
    (d) If you own or operate an existing non-emergency CI RICE with a
site rating of more than 300 HP located at an area source of HAP
emissions that is certified to the Tier 3 (Tier 2 for engines above 560
kW) emission standards in Table 1 of 40 CFR 89.112, you may comply with
the requirements under this part by meeting the requirements for Tier 3
engines (Tier 2 for engines above 560 kW) in 40 CFR part 60 subpart
IIII instead of the emission limitations and other requirements that
would otherwise apply under this part for existing non-emergency CI
RICE with a site rating of more than 300 HP located at an area source
of HAP emissions.
    (e) An existing non-emergency SI 4SLB and 4SRB stationary RICE with
a site rating of more than 500 HP located at area sources of HAP must
meet the definition of remote stationary RICE in Sec.  63.6675 on the
initial compliance date for the engine, October 19, 2013, in order to
be considered a remote stationary RICE under this subpart. Owners and
operators of existing non-emergency SI 4SLB and 4SRB stationary RICE
with a site rating of more than 500 HP located at area sources of HAP
that meet the definition of remote stationary RICE in Sec.  63.6675 of
this subpart as of October 19, 2013 must evaluate the status of their
stationary RICE every 12 months. Owners and operators must keep records
of the initial and annual evaluation of the status of the engine. If
the evaluation indicates that the stationary RICE no longer meets the
definition of remote stationary RICE in Sec.  63.6675 of this subpart,
the owner or operator must comply with all of the requirements for
existing non-emergency SI 4SLB and 4SRB stationary RICE with a site
rating of more than 500 HP located at area sources of HAP that are not
remote stationary RICE within one year of the evaluation.
    14. 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 that meet either
Sec.  63.6603(b)(1) or Sec.  63.6603(b)(2) are exempt from the
requirements of this section.
    15. Section 63.6605 is amended by revising paragraph (a) to read as
follows:

Sec.  63.6605  What are my general requirements for complying with this
subpart?

    (a) You must be in compliance with the emission limitations,
operating limitations, and other requirements in this subpart that
apply to you at all times.
* * * * *
    16. Section 63.6620 is amended by revising paragraphs (b) and (e)
to read as follows:

Sec.  63.6620  What performance tests and other procedures must I use?

* * * * *
    (b) Each performance test must be conducted according to the
requirements that this subpart specifies in Table 4 to this subpart. If
you own or operate a non-operational stationary RICE that is subject to
performance testing, you do not need to start up the engine solely to
conduct the performance test. Owners and operators of a non-operational
engine can conduct the performance test when the engine is started up
again. The test must be conducted at any load condition within plus or
minus 10 percent of 100 percent load for the stationary RICE listed in
paragraphs (b)(1) through (4) of this section.
    (1) Non-emergency 4SRB stationary RICE with a site rating of
greater than 500 brake HP located at a major source of HAP emissions.
    (2) New non-emergency 4SLB stationary RICE with a site rating of
greater than or equal to 250 brake HP located at a major source of HAP
emissions.
    (3) New non-emergency 2SLB stationary RICE with a site rating of
greater than 500 brake HP located at a major source of HAP emissions.
    (4) New non-emergency CI stationary RICE with a site rating of
greater than 500 brake HP located at a major source of HAP emissions.
* * * * *
    (e)(1) You must use Equation 1 of this section to
    [GRAPHIC] [TIFF OMITTED] TP07JN12.000

determine compliance with the percent reduction requirement:

Where:

Ci = concentration of CO, THC, or formaldehyde at the
control device inlet,
Co = concentration of CO, THC, or formaldehyde at the
control device outlet, and
R = percent reduction of CO, THC, or formaldehyde emissions.

    (2) You must normalize the carbon monoxide (CO), total hydrocarbons
(THC), or formaldehyde concentrations at the inlet and outlet of the
control device to a dry basis and to 15 percent oxygen, or an
equivalent percent carbon dioxide (CO2). If pollutant

concentrations are to be corrected to 15 percent oxygen and
CO2 concentration is measured in lieu of oxygen
concentration measurement, a CO2 correction factor is
needed. Calculate the CO2 correction factor as described in
paragraphs (e)(2)(i) through (iii) of this section.
    (i) Calculate the fuel-specific Fo value for the fuel
burned during the test using values obtained from Method 19,
[GRAPHIC] [TIFF OMITTED] TP07JN12.001

Section 5.2, and the following equation:

Where:

Fo = Fuel factor based on the ratio of oxygen volume to
the ultimate CO2 volume produced by the fuel at zero
percent excess air.
0.209 = Fraction of air that is oxygen, percent/100.
Fd = Ratio of the volume of dry effluent gas to the gross
calorific value of the fuel from Method 19, dsm\3\/J (dscf/10\6\
Btu).
Fc = Ratio of the volume of CO2 produced to
the gross calorific value of the fuel from Method 19, dsm\3\/J
(dscf/10\6\ Btu)

    (ii) Calculate the CO2 correction factor for correcting
    [GRAPHIC] [TIFF OMITTED] TP07JN12.002

measurement data to 15 percent oxygen, as follows:

Where:

Xco2 = CO2 correction factor, percent.
5.9 = 20.9 percent O2--15 percent O2, the
defined O2 correction value, percent.

    (iii) Calculate the CO, THC, and formaldehyde gas concentrations
adjusted to 15 percent O2 using CO2 as follows:
[GRAPHIC] [TIFF OMITTED] TP07JN12.003

Where:

%CO2 = Measured CO2 concentration measured,
dry basis, percent.
* * * * *
    17. Section 63.6625 is amended by:
    a. Revising the introductory text of paragraph (a);
    b. Revising the introductory text of paragraph (b);
    c. Revising paragraph (e)(6); and
    d. Revising paragraph (g) to read as follows:

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

    (a) If you elect to install a CEMS as specified in Table 5 of this
subpart, you must install, operate, and maintain a CEMS to monitor CO
and either oxygen or CO2 according to the requirements in
paragraphs (a)(1) through (4) of this section. If you are meeting a
requirement to reduce CO emissions, the CEMS must be installed at both
the inlet and outlet of the control device. If you are meeting a
requirement to limit the concentration of CO, the CEMS must be
installed at the outlet of the control device. * * *
* * * * *
    (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 (6) of this section. * * *
* * * * *
    (e) * * *
    (6) An existing non-emergency, non-black start stationary RICE
located at an area 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;
* * * * *
    (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 that meet either Sec.
63.6603(b)(1) or Sec.  63.6603(b)(2) do not have to meet the
requirements of paragraph (g) of this section.
    (1) Install a closed crankcase ventilation system that prevents
crankcase emissions from being emitted to the atmosphere, or
    (2) Install an open crankcase filtration emission control system
that reduces emissions from the crankcase by filtering the exhaust
stream to remove oil mist, particulates and metals.
* * * * *
    18. Section 63.6630 is amended by:
    a. Revising the section heading;
    b. Revising paragraph (a);
    c. Adding paragraph (d); and
    d. Adding paragraph (e) to read as follows:

Sec.  63.6630  How do I demonstrate initial compliance with the
emission limitations, operating limitations, and other requirements?

    (a) You must demonstrate initial compliance with each emission
limitation, operating limitation, and other requirement that applies to
you according to Table 5 of this subpart.
* * * * *
    (d) Non-emergency 4SRB stationary RICE complying with the
requirement to reduce formaldehyde emissions by 76 percent or more can
demonstrate initial compliance with the formaldehyde emission limit by
testing for THC instead of formaldehyde. The testing must be conducted
according to the requirements in Table 4 of this subpart. The average
reduction of emissions of THC determined from the performance test must
be equal to or greater than 30 percent.
    (e) The initial compliance demonstration required for existing non-
emergency 4SLB and 4SRB stationary RICE with a site rating of more than
500 HP located at an area source of HAP that are not remote stationary
RICE and that are operated more than 24 hours per calendar year must be
conducted according to the following requirements:
    (1) The compliance demonstration must consist of at least three
test runs.
    (2) Each test run must be of at least 15 minute duration, except
that each test conducted using the method in appendix A to this subpart
must consist of at least one measurement cycle and include at least 2
minutes of test data phase measurement.
    (3) If you are demonstrating compliance with the CO concentration
or CO percent reduction requirement, you must measure CO emissions
using one of the CO measurement methods specified in Table 4 of this
subpart, or using appendix A to this subpart.
    (4) If you are demonstrating compliance with the THC percent
reduction requirement, you must measure THC emissions using Method 25A
of 40 CFR part 60, appendix A.
    (5) You must measure O2 using one of the O2
measurement methods specified in Table 4 of this subpart. Measurements
to determine O2 concentration must be made at the same time
as the measurements for CO or THC concentration.
    (6) If you are demonstrating compliance with the CO or THC percent
reduction requirement, you must measure CO or THC emissions and
O2 emissions simultaneously at the inlet and outlet of the
control device.
    19. Section 63.6640 is amended by:
    a. Amending the section heading;
    b. Revising paragraph (a);

    c. Revising paragraph (c); and
    d. Revising paragraph (f) to read as follows:

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

    (a) You must demonstrate continuous compliance with each emission
limitation, operating limitation, and other requirements in Tables 1a
and 1b, Tables 2a and 2b, Table 2c, and Table 2d to this subpart that
apply to you according to methods specified in Table 6 to this subpart.
* * * * *
    (c) The annual compliance demonstration required for existing non-
emergency 4SLB and 4SRB stationary RICE with a site rating of more than
500 HP located at an area source of HAP that are not remote stationary
RICE and that are operated more than 24 hours per calendar year must be
conducted according to the following requirements:
    (1) The compliance demonstration must consist of at least one test
run.
    (2) Each test run must be of at least 15 minute duration, except
that each test conducted using the method in appendix A to this subpart
must consist of at least one measurement cycle and include at least 2
minutes of test data phase measurement.
    (3) If you are demonstrating compliance with the CO concentration
or CO percent reduction requirement, you must measure CO emissions
using one of the CO measurement methods specified in Table 4 of this
subpart, or using appendix A to this subpart.
    (4) If you are demonstrating compliance with the THC percent
reduction requirement, you must measure THC emissions using Method 25A
of 40 CFR part 60, appendix A.
    (5) You must measure O2 using one of the O2
measurement methods specified in Table 4 of this subpart. Measurements
to determine O2 concentration must be made at the same time
as the measurements for CO or THC concentration.
    (6) If you are demonstrating compliance with the CO or THC percent
reduction requirement, you must measure CO or THC emissions and
O2 emissions simultaneously at the inlet and outlet of the
control device.
    (7) If the results of the annual compliance demonstration show that
the emissions exceed the levels specified in Table 6 of this subpart,
the stationary RICE must be shut down as soon as safely possible, and
appropriate corrective action must be taken (e.g., repairs, catalyst
cleaning, catalyst replacement). The stationary RICE must be retested
within 7 days of being restarted and the emissions must meet the levels
specified in Table 6 of this subpart. If the retest shows that the
emissions continue to exceed the specified levels, the stationary RICE
must again be shut down as soon as safely possible, and the stationary
RICE may not operate, except for purposes of startup and testing, until
the owner/operator demonstrates through testing that the emissions do
not exceed the levels specified in Table 6 of this subpart.
* * * * *
    (f) If you own or operate an emergency stationary RICE, you must
operate the emergency stationary RICE according to the requirements in
paragraphs (f)(1) through (4) of this section. In order for the engine
to be considered an emergency stationary RICE under this subpart, any
operation other than emergency operation, maintenance and testing,
emergency demand response, and operation in non-emergency situations
for 50 hours per year, as described in paragraphs (f)(1) through (4) of
this section, is prohibited. If you do not operate the engine according
to the requirements in paragraphs (f)(1) through (4) of this section,
the engine will not be considered an emergency engine under this
subpart and must meet all requirements for non-emergency engines. An
engine that exceeds the calendar year limitations on non-emergency
operation will be considered a non-emergency engine and subject to the
requirements for non-emergency engines for the remaining life of the
engine.
    (1) There is no time limit on the use of emergency stationary RICE
in emergency situations.
    (2) You may operate your emergency stationary RICE for any
combination of the purposes specified in paragraphs (f)(2)(i) through
(iii) of this section for a maximum of 100 hours per calendar year. Any
operation for non-emergency situations as allowed by paragraphs (f)(3)
and (4) of this section counts as part of the 100 hours per calendar
year allowed by this paragraph (f)(2).
    (i) Emergency stationary RICE may be operated for maintenance
checks and readiness testing, provided that the tests are recommended
by federal, state or local government, the manufacturer, the vendor,
the regional transmission authority or equivalent balancing authority
and transmission operator, or the insurance company associated with the
engine. 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 calendar year.
    (ii) Emergency stationary RICE may be operated for emergency demand
response for periods in which the regional transmission authority or
equivalent balancing authority and transmission operator has declared
an Energy Emergency Alert Level 2 (EEA Level 2) as defined in the North
American Electric Reliability Corporation Reliability Standard EOP-002-
3, Capacity and Energy Emergencies.
    (iii) Emergency stationary RICE may be operated for periods where
there is a deviation of voltage or frequency of 5 percent or greater
below standard voltage or frequency.
    (3) Emergency stationary RICE located at major sources of HAP may
be operated for up to 50 hours per calendar year in non-emergency
situations. The 50 hours of operation in non-emergency situations are
counted as part of the 100 hours per calendar year for maintenance and
testing and emergency demand response provided in paragraph (f)(2) of
this section. The 50 hours per year for non-emergency situations cannot
be used for peak shaving or non-emergency demand response, 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.
    (4) Existing emergency stationary RICE located at area sources of
HAP may be operated for up to 50 hours per calendar year in non-
emergency situations. The 50 hours of operation in non-emergency
situations are counted as part of the 100 hours per calendar year for
maintenance and testing and emergency demand response provided in
paragraph (f)(2) of this section.
    (i) Prior to April 16, 2017, the 50 hours per year for non-
emergency situations can be used for peak shaving or non-emergency
demand response to generate income for a facility, or to otherwise
supply power as part of a financial arrangement with another entity if
engines is operated as part of a peak shaving (load management program)
with the local distribution system operator and the power is provided
only to the facility itself or to support the local distribution
system.
    (ii) On or after April 16, 2017, the 50 hours per year for non-
emergency situations cannot be used for peak shaving or non-emergency
demand response, or to otherwise supply power

as part of a financial arrangement with another entity.
* * * * *
    20. Section 63.6645 is amended by adding a new paragraph (i) to
read as follows:

Sec.  63.6645  What notifications must I submit and when?

* * * * *
    (i) If you own or operate an existing non-emergency CI RICE with a
site rating of more than 300 HP located at an area source of HAP
emissions that is certified to the Tier 1 or Tier 2 emission standards
in Table 1 of 40 CFR 89.112 and subject to an enforceable state or
local standard requiring engine replacement and you intend to meet
management practices rather than emission limits, as specified in Sec.
63.6603(c), you must submit a notification by March 3, 2013, stating
that you intend to use the provision in Sec.  63.6603(c) and
identifying the state or local regulation that the engine is subject
to.
    21. Section 63.6675 is amended by:
    a. Adding in alphabetical order the definition of Alaska Railbelt
Grid;
    b. Revising the definition of Emergency stationary RICE; and
    c. Adding in alphabetical order the definition of Remote stationary
RICE to read as follows.

Sec.  63.6675  What definitions apply to this subpart?

* * * * *
    Alaska Railbelt Grid means the service areas of the six regulated
public utilities that extend from Fairbanks to Anchorage and the Kenai
Peninsula. These utilities are Golden Valley Electric Association;
Chugach Electric Association; Matanuska Electric Association; Homer
Electric Association; Anchorage Municipal Light & Power; and the City
of Seward Electric System.
* * * * *
    Emergency stationary RICE means any stationary reciprocating
internal combustion engine that meets all of the criteria in paragraphs
(1) through (3) of this definition. 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.
    (1) The stationary RICE is operated to provide electrical power or
mechanical work during an emergency situation. 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.
    (2) The stationary RICE is operated under limited circumstances for
situations not included in paragraph (1) of this definition, as
specified in Sec.  63.6640(f).
    (3) The stationary RICE operates as part of a financial arrangement
with another entity in situations not included in paragraph (1) of this
definition only as allowed in Sec.  63.6640(f)(2)(ii) or (iii) and
Sec.  63.6640(f)(4)(i).
* * * * *
    Remote stationary RICE means stationary RICE meeting any of the
following criteria:
    (1) Stationary RICE located in an offshore area that is beyond the
line of ordinary low water along that portion of the coast of the
United States that is in direct contact with the open seas and beyond
the line marking the seaward limit of inland waters.
    (2) Stationary RICE located on a pipeline segment that meets both
of the criteria in paragraphs (2)(i) and (ii) of this definition.
    (i) A pipeline segment with 10 or fewer buildings intended for
human occupancy within 220 yards (200 meters) on either side of the
centerline of any continuous 1-mile (1.6 kilometers) length of
pipeline. Each separate dwelling unit in a multiple dwelling unit
building is counted as a separate building intended for human
occupancy.
    (ii) The pipeline segment does not lie within 100 yards (91 meters)
of either a building or a small, well-defined outside area (such as a
playground, recreation area, outdoor theater, or other place of public
assembly) that is occupied by 20 or more persons on at least 5 days a
week for 10 weeks in any 12-month period. The days and weeks need not
be consecutive. The building or area is considered occupied for a full
day if it is occupied for any portion of the day.
    (iii) For purposes of this paragraph (2), the term pipeline segment
means all parts of those physical facilities through which gas moves in
transportation, including but not limited to pipe, valves, and other
appurtenance attached to pipe, compressor units, metering stations,
regulator stations, delivery stations, holders, and fabricated
assemblies. Stationary RICE located within 50 yards (46 m) of the
pipeline segment providing power for equipment on a pipeline segment
are part of the pipeline segment. Transportation of gas means the
gathering, transmission, or distribution of gas by pipeline, or the
storage of gas. A building is intended for human occupancy if its
primary use is for a purpose involving the presence of humans.
    (3) Stationary RICE that are not located on gas pipelines and that
have 5 or fewer buildings intended for human occupancy within a 0.25
mile radius around the engine. A building is intended for human
occupancy if its primary use is for a purpose involving the presence of
humans.
* * * * *
    22. Table 1b to Subpart ZZZZ of Part 63 is revised to read as
follows:
    As stated in Sec. Sec.  63.6600, 63.6603, 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:

Table 1b to Subpart ZZZZ of Part 63--Operating Limitations for Existing,
New, and Reconstructed SI 4SRB Stationary RICE 500 HP Located
                   at a Major Source of HAP Emissions
------------------------------------------------------------------------
                                           You must meet the following
             For each . . .                operating limitation, except
                                         during periods of startup . . .
------------------------------------------------------------------------
1. existing, new and reconstructed 4SRB  a. maintain your catalyst so
 stationary RICE >500 HP located at a     that the pressure drop across
 major source of HAP emissions            the catalyst does not change
 complying with the requirement to        by more than 2 inches of water
 reduce formaldehyde emissions by 76      at 100 percent load plus or
 percent or more (or by 75 percent or     minus 10 percent from the
 more, if applicable) and using NSCR;     pressure drop across the
 or                                       catalyst measured during the
                                          initial performance test; and

existing, new and reconstructed 4SRB     b. maintain the temperature of
 stationary RICE >500 HP located at a     your stationary RICE exhaust
 major source of HAP emissions            so that the catalyst inlet
 complying with the requirement to        temperature is greater than or
 limit the concentration of               equal to 750[deg]F and less
 formaldehyde in the stationary RICE      than or equal to 1250[deg]
 exhaust to 350 ppbvd or less at 15       F.\1\
 percent O2 and using NSCR;
------------------------------------------------------------------------
2. existing, new and reconstructed 4SRB  Comply with any operating
 stationary RICE >500 HP located at a     limitations approved by the
 major source of HAP emissions            Administrator.
 complying with the requirement to
 reduce formaldehyde emissions by 76
 percent or more (or by 75 percent or
 more, if applicable) and not using
 NSCR; or
existing, new and reconstructed 4SRB
 stationary RICE >500 HP located at a
 major source of HAP emissions
 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.
------------------------------------------------------------------------
\1\ Sources can petition the Administrator pursuant to the requirements
  of 40 CFR 63.8(f) for a different temperature range.

    23. Table 2b to Subpart ZZZZ of Part 63 is revised to read as
follows:
    As stated in Sec. Sec.  63.6600, 63.6601, 63.6603, 63.6630, and
63.6640, you must comply with the following operating limitations for
new and reconstructed 2SLB and CI 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; and existing
CI stationary RICE >500 HP:

 Table 2b to Subpart ZZZZ of Part 63--Operating Limitations for New and
Reconstructed 2SLB and CI 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 CI Stationary RICE 500 HP, and Existing 4SLB
   Stationary RICE 500 HP Located at an Area Source of HAP
                                Emissions
------------------------------------------------------------------------
                                           You must meet the following
             For each . . .                operating limitation, except
                                         during periods of startup . . .
------------------------------------------------------------------------
1. New and reconstructed 2SLB and CI     a. maintain your catalyst so
 stationary RICE >500 HP located at a     that the pressure drop across
 major source of HAP emissions and new    the catalyst does not change
 and reconstructed 4SLB stationary RICE   by more than 2 inches of water
 >=250 HP located at a major source of    at 100 percent load plus or
 HAP emissions complying with the         minus 10 percent from the
 requirement to reduce CO emissions and   pressure drop across the
 using an oxidation catalyst; and         catalyst that was measured
New and reconstructed 2SLB and CI         during the initial performance
 stationary RICE >500 HP located at a     test; and
 major source of HAP emissions and new   b. maintain the temperature of
 and reconstructed 4SLB stationary RICE   your stationary RICE exhaust
 >=250 HP located at a major source of    so that the catalyst inlet
 HAP emissions complying with the         temperature is greater than or
 requirement to limit the concentration   equal to 450 [deg]F and less
 of formaldehyde in the stationary RICE   than or equal to 1350
 exhaust and using an oxidation           [deg]F.\1\
 catalyst.
2. Existing CI stationary RICE >500 HP   a. maintain your catalyst so
 complying with the requirement to        that the pressure drop across
 limit or reduce the concentration of     the catalyst does not change
 CO in the stationary RICE exhaust and    by more than 2 inches of water
 using an oxidation catalyst.             from the pressure drop across
                                          the catalyst that was measured
                                          during the initial performance
                                          test; and
                                         b. maintain the temperature of
                                          your stationary RICE exhaust
                                          so that the catalyst inlet
                                          temperature is greater than or
                                          equal to 450 [deg]F and less
                                          than or equal to 1350
                                          [deg]F.\1\
3. New and reconstructed 2SLB and CI     Comply with any operating
 stationary RICE >500 HP located at a     limitations approved by the
 major source of HAP emissions and new    Administrator.
 and reconstructed 4SLB stationary RICE
 >=250 HP located at a major source of
 HAP emissions complying with the
 requirement to reduce CO emissions and
 not using an oxidation catalyst; and
New and reconstructed 2SLB and CI
 stationary RICE >500 HP located at a
 major source of HAP emissions and new
 and reconstructed 4SLB stationary RICE
 >=250 HP located at a major source of
 HAP emissions complying with the
 requirement to limit the concentration
 of formaldehyde in the stationary RICE
 exhaust and not using an oxidation
 catalyst and
existing CI stationary RICE >500 HP
 complying with the requirement to
 limit or reduce 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(f) for a different temperature range.

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

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
----------------------------------------------------------------------------------------------------------------
                                                  You must meet the following
                For each . . .                    requirement, except during      During periods of startup you
                                                   periods of startup . . .                 must . . .
----------------------------------------------------------------------------------------------------------------
1. Emergency stationary CI RICE and black      a. Change oil and filter every    Minimize the engine's time
 start stationary CI RICE.\1\                   500 hours of operation or         spent at idle and minimize the
                                                annually, whichever comes         engine's startup time at
                                                first; \2\                        startup to a period needed for
                                               b. Inspect air cleaner every       appropriate and safe loading
                                                1,000 hours of operation or       of the engine, not to exceed
                                                annually, whichever comes         30 minutes, after which time
                                                first, and replace as             the non-startup emission
                                                necessary;.                       limitations apply.\3\
                                               c. Inspect all hoses and belts
                                                every 500 hours of operation or
                                                annually, whichever comes
                                                first, and replace as
                                                necessary.\3\
----------------------------------------------------------------------------------------------------------------
2. Non-Emergency, non-black start stationary   a. Change oil and filter every
 CI RICE <100 HP.                               1,000 hours of operation or
                                                annually, whichever comes
                                                first; \2\
                                               b. Inspect air cleaner every
                                                1,000 hours of operation or
                                                annually, whichever comes
                                                first, and replace as
                                                necessary;.
                                               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 start CI           Limit concentration of CO in the
 stationary RICE 100 <=HP<=300 HP.              stationary RICE exhaust to 230
                                                ppmvd or less at 15 percent O2.
----------------------------------------------------------------------------------------------------------------
4. Non-Emergency, non- black start CI          a. Limit concentration of CO in
 stationary RICE 300500 HP.                               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 RICE and black      a. Change oil and filter every
 start stationary SI RICE.\1\                   500 hours of operation or
                                                annually, whichever comes
                                                first; \2\
                                               b. Inspect spark plugs every
                                                1,000 hours of operation or
                                                annually, whichever comes
                                                first, and replace as
                                                necessary;.
                                               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 start stationary   a. Change oil and filter every
 SI RICE <100 HP that are not 2SLB stationary   1,440 hours of operation or
 RICE.                                          annually, whichever comes
                                                first; \2\
                                               b. Inspect spark plugs every
                                                1,440 hours of operation or
                                                annually, whichever comes
                                                first, and replace as
                                                necessary;.
                                               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 start 2SLB         a. Change oil and filter every
 stationary SI RICE <100 HP.                    4,320 hours of operation or
                                                annually, whichever comes
                                                first; \2\
                                               b. Inspect spark plugs every
                                                4,320 hours of operation or
                                                annually, whichever comes
                                                first, and replace as
                                                necessary;.
                                               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 start 2SLB         Limit concentration of CO in the
 stationary RICE 100<=HP<=500                   stationary RICE exhaust to 225
                                                ppmvd or less at 15 percent O2.
----------------------------------------------------------------------------------------------------------------

10. Non-emergency, non-black start 4SLB        Limit concentration of CO in the
 stationary RICE 100<=HP<=500                   stationary RICE exhaust to 47
                                                ppmvd or less at 15 percent O2.
----------------------------------------------------------------------------------------------------------------
11. Non-emergency, non-black start 4SRB        Limit concentration of
 stationary RICE 100<=HP<=500                   formaldehyde in the stationary
                                                RICE exhaust to 10.3 ppmvd or
                                                less at 15 percent O2.
----------------------------------------------------------------------------------------------------------------
12. Non-emergency, non-black start stationary  Limit concentration of CO in the
 RICE 100<=HP<=500 which combusts landfill or   stationary RICE exhaust to 177
 digester gas equivalent to 10 percent or       ppmvd or less at 15 percent O2.
 more of the gross heat input on an annual
 basis
----------------------------------------------------------------------------------------------------------------
\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.

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

  Table 2d to Subpart ZZZZ of Part 63--Requirements for Existing Stationary RICE Located at Area Sources of HAP
                                                    Emissions
----------------------------------------------------------------------------------------------------------------
                                                  You must meet the following
                For each . . .                    requirement, except during      During periods of startup you
                                                   periods of startup . . .                 must . . .
----------------------------------------------------------------------------------------------------------------
1. Non-Emergency, non-black start CI           a. Change oil and filter every    Minimize the engine's time
 stationary RICE <=300 HP.                      1,000 hours of operation or       spent at idle and minimize the
                                                annually, whichever comes         engine's startup time at
                                                first; \1\                        startup to a period needed for
                                               b. Inspect air cleaner every       appropriate and safe loading
                                                1,000 hours of operation or       of the engine, not to exceed
                                                annually, whichever comes         30 minutes, after which time
                                                first, and replace as             the non-startup emission
                                                necessary; and.                   limitations apply.
                                               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 start CI           a. Limit concentration of CO in
 stationary RICE 300 < HP <= 500.               the stationary RICE exhaust to
                                                49 ppmvd at 15 percent O2; or
                                               b. Reduce CO emissions by 70
                                                percent or more..
----------------------------------------------------------------------------------------------------------------
3. Non-Emergency, non-black start CI           a. Limit concentration of CO in
 stationary RICE >500 HP.                       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 RICE and black      a. Change oil and filter every
 start stationary CI RICE.\2\                   500 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 replace as
                                                necessary; 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 RICE; black start   a. Change oil and filter every
 stationary SI RICE; non-emergency, non-black   500 hours of operation or
 start 4SLB stationary RICE >500 HP that        annually, whichever comes
 operate 24 hours or less per calendar year;    first; \1\
 non-emergency, non-black start 4SRB           b. Inspect spark plugs every
 stationary RICE >500 HP that operate 24        1,000 hours of operation or
 hours or less per calendar year.\2\            annually, whichever comes
                                                first, and replace as
                                                necessary; 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 start 2SLB         a. Change oil and filter every
 stationary RICE.                               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 replace as
                                                necessary; 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 start 4SLB         a. Change oil and filter every
 stationary RICE <=500 HP; non-emergency, non-  1,440 hours of operation or
 black start 4SLB remote stationary RICE >500   annually, whichever comes
 HP.                                            first; \1\
                                               b. Inspect spark plugs every
                                                1,440 hours of operation or
                                                annually, whichever comes
                                                first, and replace as
                                                necessary; 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 start 4SLB         Install an oxidation catalyst to
 stationary RICE >500 HP that are not remote    reduce HAP emissions from the
 stationary RICE and that operate more than     stationary RICE.
 24 hours per calendar year.
----------------------------------------------------------------------------------------------------------------
9. Non-emergency, non-black start 4SRB         a. Change oil and filter every
 stationary RICE <=500 HP; non-emergency, non-  1,440 hours of operation or
 black start 4SRB remote stationary RICE >500   annually, whichever comes
 HP.                                            first; \1\
                                               b. Inspect spark plugs every
                                                1,440 hours of operation or
                                                annually, whichever comes
                                                first, and replace as
                                                necessary; 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 start 4SRB        Install NSCR to reduce HAP
 stationary RICE >500 HP that are not remote    emissions from the stationary
 stationary RICE and that operate more than     RICE.
 24 hours per calendar year.
----------------------------------------------------------------------------------------------------------------
11. Non-emergency, non-black start stationary  a. Change oil and filter every
 RICE which combusts landfill or digester gas   1,440 hours of operation or
 equivalent to 10 percent or more of the        annually, whichever comes
 gross heat input on an annual basis.           first; \1\
                                               b. Inspect spark plugs every
                                                1,440 hours of operation or
                                                annually, whichever comes
                                                first, and replace as
                                                necessary; 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.

    26. Table 3 to Subpart ZZZZ of Part 63 is revised to read as
follows:
    As stated in Sec. Sec.  63.6615 and 63.6620, you must comply with
the following subsequent performance test requirements:

                        Table 3 to Subpart ZZZZ of Part 63--Subsequent Performance Tests
----------------------------------------------------------------------------------------------------------------
                                                Complying with the requirement
                For each . . .                             to . . .                       You must . . .
----------------------------------------------------------------------------------------------------------------
1. New or reconstructed 2SLB stationary RICE   Reduce CO emissions and not       Conduct subsequent performance
 >500 HP located at major sources; new or       using a CEMS.                     tests semiannually \1\.
 reconstructed 4SLB stationary RICE >=250 HP
 located at major sources; and new or
 reconstructed CI stationary RICE >500 HP
 located at major sources.
----------------------------------------------------------------------------------------------------------------
2. 4SRB stationary RICE >=5,000 HP located at  Reduce formaldehyde emissions...  Conduct subsequent performance
 major sources.                                                                   tests semiannually\1\.
----------------------------------------------------------------------------------------------------------------
3. Stationary RICE >500 HP located at major    Limit the concentration of        Conduct subsequent performance
 sources and new or reconstructed 4SLB          formaldehyde in the stationary    tests semiannually \1\.
 stationary RICE 250 <= HP <=500 located at     RICE exhaust.
 major sources.
----------------------------------------------------------------------------------------------------------------
4. Existing non-emergency, non-black start CI  Limit or reduce CO emissions and  Conduct subsequent performance
 stationary RICE >500 HP that are not limited   not using a CEMS.                 tests every 8,760 hrs or 3
 use stationary RICE.                                                             years, whichever comes first.
----------------------------------------------------------------------------------------------------------------
5. Existing non-emergency, non-black start CI  Limit or reduce CO emissions and  Conduct subsequent performance
 stationary RICE >500 HP that are limited use   not using a CEMS.                 tests every 8,760 hrs or 5
 stationary RICE.                                                                 years, whichever comes first.
----------------------------------------------------------------------------------------------------------------
\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.

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

                     Table 4 to Subpart ZZZZ of Part 63--Requirements for Performance Tests
----------------------------------------------------------------------------------------------------------------
                                  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) Method 3 or 3A  (a) Measurements
 RICE.                             emissions.          at the inlet and    or 3B of 40 CFR     to determine O2
                                                       outlet of the       part 60, appendix   must be made at
                                                       control device;     A, or ASTM Method   the same time as
                                                       and                 D6522-00 (2005)     the measurements
                                                                           \a\ (incorporated   for CO
                                                                           by reference, see   concentration.
                                                                           Sec.   63.14).
                                                      ii. Measure the CO  (1) ASTM D6522-00   (a) The CO
                                                       at the inlet and    (2005) \a,b\        concentration
                                                       the outlet of the   (incorporated by    must be at 15
                                                       control device.     reference, see      percent O2, dry
                                                                           Sec.   63.14) or    basis.
                                                                           Method 10 of 40
                                                                           CFR part 60,
                                                                           appendix A.
----------------------------------------------------------------------------------------------------------------

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                 D6522-00 (2005).    the same time as
                                                                                the measurements
                                                                                for formaldehyde
                                                                                or THC
                                                                                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 or
                                                                                THC
                                                                                concentration.
                                                      iv. If              (1) Method 320 or   (a) formaldehyde
                                                       demonstrating       323 of 40 CFR       concentration
                                                       compliance with     part 63, appendix   must be at 15
                                                       the formaldehyde    A; or ASTM D6348-   percent O2, dry
                                                       percent reduction   03 \c\, provided    basis. Results of
                                                       requirement,        in ASTM D6348-03    this test consist
                                                       measure formalde-   Annex A5 (Analyte   of the average of
                                                       hyde at the inlet   Spiking             the three 1-hour
                                                       and the outlet of   Technique), the     or longer runs.
                                                       the control         percent R must be
                                                       device.             greater than or
                                                                           equal to 70 and
                                                                           less than or
                                                                           equal to 130.
                                                      v. If               (1) Method 25A of   (a) THC
                                                       demonstrating       40 CFR part 60,     concentration
                                                       compliance with     appendix A.         must be at 15
                                                       the THC percent                         percent O2, dry
                                                       reduction                               basis. Results of
                                                       requirement,                            this test consist
                                                       measure THC at                          of the average of
                                                       the inlet and the                       the three 1-hour
                                                       outlet of the                           or longer runs.
                                                       control device.
----------------------------------------------------------------------------------------------------------------
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,
                                   formalde-hyde 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 or
                                                                                CO concentration.
                                                      iii. Measure        (1) Method 4 of 40  (a) measurements
                                                       moisture content    CFR part 60,        to determine
                                                       of the station-     appendix A, or      moisture content
                                                       ary RICE exhaust    Test Method 320     must be made at
                                                       at the sampling     of 40 CFR part      the same time and
                                                       port location;      63, appendix A,     location as the
                                                       and                 or ASTM D 6348-03.  measurements for
                                                                                formaldehyde or
                                                                                CO concentration.
                                                      iv. Measure         (1) Method 320 or   (a) Formaldehyde
                                                       formalde-hyde at    323 of 40 CFR       concentration
                                                       the exhaust of      part 63, appendix   must be at 15
                                                       the station-ary     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 station-ary     appendix A, ASTM    must be at 15
                                                       RICE.               Method D6522-00     percent O2, dry
                                                                           (2005) \a\,         basis. Results of
                                                                           Method 320 of 40    this test consist
                                                                           CFR part 63,        of the average of
                                                                           appendix A, or      the three 1-hour
                                                                           ASTM D6348-03.      or longer runs.
----------------------------------------------------------------------------------------------------------------
\a\ 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.

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

   Table 5 to Subpart ZZZZ of Part 63--Initial Compliance With Emission Limitations and Operating Limitations
----------------------------------------------------------------------------------------------------------------
                                                Complying with the requirement    You have demonstrated initial
                For each . . .                             to . . .                    compliance if . . .
----------------------------------------------------------------------------------------------------------------
1. New or reconstructed non-emergency 2SLB     a. Reduce CO emissions and using  i. The average reduction of
 stationary RICE >500 HP located at a major     oxidation catalyst, and using a   emissions of CO determined
 source of HAP, new or reconstructed non-       CPMS.                             from the initial performance
 emergency 4SLB stationary RICE >=250 HP                                          test achieves the required CO
 located at a major source of HAP, non-                                           percent reduction; and
 emergency stationary CI RICE >500 HP located                                    ii. You have installed a CPMS
 at a major source of HAP, and existing non-                                      to continuously monitor