the hourly values.
* * * * *
    (7) Operate an oxygen trim system with the oxygen level set no
lower than the lowest hourly average oxygen concentration measured
during the most recent CO performance test as the operating limit for
oxygen according to Table 7 to this subpart, or if the facility is not
required to conduct a performance test, set the oxygen level to the
oxygen concentration measured during the most recent tune-up to
optimize CO to manufacturer's specification.
    (b) If your boiler or process heater is in the unit designed to
burn coal/solid fossil fuel subcategory or the unit designed to burn
heavy liquid

subcategory and has an average annual heat input rate greater than 250
MMBtu per hour from solid fossil fuel and/or heavy liquid, and you
demonstrate compliance with the PM limit instead of the alternative TSM
limit, you must install, maintain, and operate a PM CPMS monitoring
emissions discharged to the atmosphere and record the output of the
system as specified in paragraphs (b)(1) through (4) of this section.
As an alternative to use of a PM CPMS to demonstrate compliance with
the PM limit, you may choose to use a PM CEMS. If you choose to use a
PM CEMS to demonstrate compliance with the PM limit instead of the
alternative TSM limit, you must install, certify, maintain, and operate
a PM CEMS monitoring emissions discharged to the atmosphere and record
the output of the system as specified in paragraph (b)(5) through (8)
of this section. For other boilers or process heaters, you may elect to
use a PM CPMS or PM CEMS operated in accordance with this section in
lieu of using other CMS for monitoring PM compliance (e.g., bag leak
detectors, ESP secondary power, PM scrubber pressure). Owners of
boilers and process heaters who elect to comply with the alternative
TSM limit are not required to install a PM CPMS.
    (1) Install, operate, and maintain your PM CPMS according to the
procedures in your approved site-specific monitoring plan developed in
accordance with Sec.  63.7505(d), the requirements in Sec.
63.7540(a)(9), and paragraphs (b)(1)(i) through (iii) of this section.
    (i) The operating principle of the PM CPMS must be based on in-
stack or extractive light scatter, light scintillation, beta
attenuation, or mass accumulation detection of PM in the exhaust gas or
representative exhaust gas sample. The reportable measurement output
from the PM CPMS must be expressed as milliamps.
    (ii) The PM CPMS must have a cycle time (i.e., period required to
complete sampling, measurement, and reporting for each measurement) no
longer than 60 minutes.
    (iii) The PM CPMS must have a documented detection limit of 0.5
milligram per actual cubic meter, or less.
* * * * *
    (g) * * *
    (3) Calibrate the pH monitoring system in accordance with your
monitoring plan at least once each process operating day.
* * * * *
    (m) If your unit is subject to a HCl emission limit in Tables 1, 2,
or 11 through 13 of this subpart and you have an acid gas wet scrubber
or dry sorbent injection control technology and you elect to use an
SO2 CEMS to demonstrate continuous compliance with the HCl
emission limit, you must install the monitor at the outlet of the
boiler or process heater, downstream of all emission control devices,
and you must install, certify, operate, and maintain the CEMS according
to either part 60 or part 75 of this chapter.
    (1) * * *
    (2) For on-going quality assurance (QA), the SO2 CEMS
must meet either the applicable daily and quarterly requirements in
Procedure 1 of appendix F of part 60 or the applicable daily,
quarterly, and semiannual or annual requirements in sections 2.1
through 2.3 of appendix B to part 75 of this chapter, with the
following addition: You must perform the linearity checks required in
section 2.2 of appendix B to part 75 of this chapter if the
SO2 CEMS has a span value of 30 ppm or less.
* * * * *
0
12. Section 63.7530 is amended by:
0
a. Revising paragraphs (a).
0
b. Revising paragraph (b) introductory text.
0
c. Revising paragraphs (b)(1)(iii), (b)(2)(iii), and (b)(3)(iii).
0
d. Revising paragraph (b)(4)(ii)(F).
0
e. Redesignating paragraphs (b)(4)(iii) through (b)(4)(viii) as
(b)(4)(iv) through (b)(4)(ix) and adding new paragraph (b)(4)(iii).
0
f. Revising paragraphs (c)(3), (c)(4), and (c)(5).
0
g. Revising paragraph (d).
0
h. Revising paragraph (e).
0
i. Revising paragraph (h).
0
j. Revising paragraph (i)(3).
    The revisions and addition read as follows:

Sec.  63.7530  How do I demonstrate initial compliance with the
emission limitations, fuel specifications and work practice standards?

    (a) You must demonstrate initial compliance with each emission
limit that applies to you by conducting initial performance tests and
fuel analyses and establishing operating limits, as applicable,
according to Sec.  63.7520, paragraphs (b) and (c) of this section, and
Tables 5 and 7 to this subpart. The requirement to conduct a fuel
analysis is not applicable for units that burn a single type of fuel,
as specified by Sec.  63.7510(a)(2). If applicable, you must also
install, operate, and maintain all applicable CMS (including CEMS,
COMS, and CPMS) according to Sec.  63.7525.
    (b) If you demonstrate compliance through performance stack
testing, you must establish each site-specific operating limit in Table
4 to this subpart that applies to you according to the requirements in
Sec.  63.7520, Table 7 to this subpart, and paragraph (b)(4) of this
section, as applicable. You must also conduct fuel analyses according
to Sec.  63.7521 and establish maximum fuel pollutant input levels
according to paragraphs (b)(1) through (3) of this section, as
applicable, and as specified in Sec.  63.7510(a)(2). (Note that Sec.
63.7510(a)(2) exempts certain fuels from the fuel analysis
requirements.) However, if you switch fuel(s) and cannot show that the
new fuel(s) does (do) not increase the chlorine, mercury, or TSM input
into the unit through the results of fuel analysis, then you must
repeat the performance test to demonstrate compliance while burning the
new fuel(s).
    (1) * * *
    (iii) You must establish a maximum chlorine input level using
Equation 7 of this section.
[GRAPHIC] [TIFF OMITTED] TP21JA15.001

Where:

Clinput = Maximum amount of chlorine entering the boiler or process
heater through fuels burned in units of pounds per million Btu.
Ci = Arithmetic average concentration of chlorine in fuel type, i,
analyzed according to Sec.  63.7521, in units of pounds per million
Btu.
Qi = Fraction of total heat input from fuel type, i, based on the
fuel mixture that has the highest content of chlorine during the
initial compliance test. If you do not burn multiple fuel types
during the performance testing, it is not necessary to determine the
value of this term. Insert a value of ``1'' for Qi. For continuous
compliance demonstration, the actual fraction of the fuel burned
during the month would be used.
n = Number of different fuel types burned in your boiler or process
heater for the

mixture that has the highest content of chlorine.

    (2) * * *
    (iii) You must establish a maximum mercury input level using
Equation 8 of this section.
[GRAPHIC] [TIFF OMITTED] TP21JA15.002

Where:

Mercuryinput = Maximum amount of mercury entering the boiler or
process heater through fuels burned in units of pounds per million
Btu.
HGi = Arithmetic average concentration of mercury in fuel type, i,
analyzed according to Sec.  63.7521, in units of pounds per million
Btu.
Qi = Fraction of total heat input from fuel type, i, based on the
fuel mixture that has the highest mercury content during the initial
compliance test. If you do not burn multiple fuel types during the
performance test, it is not necessary to determine the value of this
term. Insert a value of ``1'' for Qi. For continuous compliance
demonstration, the actual fraction of the fuel burned during the
month would be used.
n = Number of different fuel types burned in your boiler or process
heater for the mixture that has the highest content of mercury.

    (3) * * *
    (iii) You must establish a maximum TSM input level using Equation 9
of this section.
[GRAPHIC] [TIFF OMITTED] TP21JA15.003

Where:

TSMinput = Maximum amount of TSM entering the boiler or process
heater through fuels burned in units of pounds per million Btu.
TSMi = Arithmetic average concentration of TSM in fuel type, i,
analyzed according to Sec.  63.7521, in units of pounds per million
Btu.
Qi = Fraction of total heat input from fuel type, i, based on the
fuel mixture that has the highest content of TSM during the initial
compliance test. If you do not burn multiple fuel types during the
performance testing, it is not necessary to determine the value of
this term. Insert a value of ``1'' for Qi. For continuous compliance
demonstration, the actual fraction of the fuel burned during the
month would be used.
n = Number of different fuel types burned in your boiler or process
heater for the mixture that has the highest content of TSM.

    (4) * * *
    (ii) * * *
    (F) For PM performance test reports used to set a PM CPMS operating
limit, the electronic submission of the test report must also include
the make and model of the PM CPMS instrument, serial number of the
instrument, analytical principle of the instrument (e.g. beta
attenuation), span of the instruments primary analytical range,
milliamp value equivalent to the instrument zero output, technique by
which this zero value was determined, and the average milliamp signals
corresponding to each PM compliance test run.
    (iii) For a particulate wet scrubber, you must establish the
minimum pressure drop and liquid flow rate as defined in Sec.  63.7575,
as your operating limits during the three-run performance test during
which you demonstrate compliance with your applicable limit. If you use
a wet scrubber and you conduct separate performance tests for PM and
TSM emissions, you must establish one set of minimum scrubber liquid
flow rate and pressure drop operating limits. The minimum scrubber
effluent pH operating limit must be established during the HCl
performance test. If you conduct multiple performance tests, you must
set the minimum liquid flow rate and pressure drop operating limits at
the higher of the minimum values established during the performance
tests.
* * * * *
    (c) * * *
    (3) To demonstrate compliance with the applicable emission limit
for HCl, the HCl emission rate that you calculate for your boiler or
process heater using Equation 16 of this section must not exceed the
applicable emission limit for HCl.
[GRAPHIC] [TIFF OMITTED] TP21JA15.004

Where:

HCl = HCl emission rate from the boiler or process heater in units
of pounds per million Btu.
Ci90 = 90th percentile confidence level concentration of chlorine in
fuel type, i, in units of pounds per million Btu as calculated
according to Equation 15 of this section.
Qi = Fraction of total heat input from fuel type, i, based on the
fuel mixture that has the highest content of chlorine. If you do not
burn multiple fuel types, it is not necessary to determine the value
of this term. Insert a value of ``1'' for Qi.
n = Number of different fuel types burned in your boiler or process
heater for the mixture that has the highest content of chlorine.
1.028 = Molecular weight ratio of HCl to chlorine.

    (4) To demonstrate compliance with the applicable emission limit
for mercury, the mercury emission rate that you calculate for your
boiler or process heater using Equation 17 of this section must not
exceed the applicable emission limit for mercury.

[GRAPHIC] [TIFF OMITTED] TP21JA15.005

Where:

Mercury = Mercury emission rate from the boiler or process heater in
units of pounds per million Btu.
Hgi90 = 90th percentile confidence level concentration of mercury in
fuel, i, in units of pounds per million Btu as calculated according
to Equation 15 of this section.
Qi = Fraction of total heat input from fuel type, i, based on the
fuel mixture that has the highest mercury content. If you do not
burn multiple fuel types, it is not necessary to determine the value
of this term. Insert a value of ``1'' for Qi.
n = Number of different fuel types burned in your boiler or process
heater for the mixture that has the highest mercury content.

    (5) To demonstrate compliance with the applicable emission limit
for TSM for solid or liquid fuels, the TSM emission rate that you
calculate for your boiler or process heater from solid fuels using
Equation 18 of this section must not exceed the applicable emission
limit for TSM.

[GRAPHIC] [TIFF OMITTED] TP21JA15.006

Where:

Metals = TSM emission rate from the boiler or process heater in
units of pounds per million Btu.
TSMi90 = 90th percentile confidence level concentration of TSM in
fuel, i, in units of pounds per million Btu as calculated according
to Equation 15 of this section.
Qi = Fraction of total heat input from fuel type, i, based on the
fuel mixture that has the highest TSM content. If you do not burn
multiple fuel types, it is not necessary to determine the value of
this term. Insert a value of ``1'' for Qi.
n = Number of different fuel types burned in your boiler or process
heater for the mixture that has the highest TSM content.

    (d) If you own or operate an existing unit, you must submit a
signed statement in the Notification of Compliance Status report that
indicates that you conducted a tune-up of the unit.
    (e) You must include with the Notification of Compliance Status a
signed certification that the energy assessment was completed according
to Table 3 to this subpart and that the assessment is an accurate
depiction of your facility at the time of the assessment or that the
maximum number of on-site technical hours specified in the definition
of energy assessment applicable to the facility has been expended.
* * * * *
    (h) If you own or operate a unit subject to emission limits in
Tables 1 or 2 or 11 through 13 to this subpart, you must meet the work
practice standard according to Table 3 of this subpart. During startup
and shutdown, you must only follow the work practice standards
according to items 5 and 6 of Table 3 of this subpart.
    (i) * * *
    (3) You establish a unit-specific maximum SO2 operating
limit by collecting the maximum hourly SO2 emission rate on
the SO2 CEMS during the paired 3-run test for HCl. The
maximum SO2 operating limit is equal to the highest hourly
average SO2 concentration measured during the most recent
HCl performance test.
0
13. Section 63.7533 is amended by revising paragraph (e).

Sec.  63.7533  Can I use efficiency credits earned from implementation
of energy conservation measures to comply with this subpart?

* * * * *
    (e) The emissions rate as calculated using Equation 20 of this
section from each existing boiler participating in the efficiency
credit option must be in compliance with the limits in Table 2 to this
subpart at all times the affected unit is subject to numeric emission
limits, following the compliance date specified in Sec.  63.7495.
* * * * *
0
14. Section 63.7535 is amended by revising paragraphs (c) and (d).

Sec.  63.7535  Is there a minimum amount of monitoring data I must
obtain?

* * * * *
    (c) You may not use data recorded during periods of startup and
shutdown, monitoring system malfunctions or out-of-control periods,
repairs associated with monitoring system malfunctions or out-of-
control periods, or required monitoring system quality assurance or
control activities in data averages and calculations used to report
emissions or operating levels. You must record and make available upon
request results of CMS performance audits and dates and duration of
periods when the CMS is out of control to completion of the corrective
actions necessary to return the CMS to operation consistent with your
site-specific monitoring plan. You must use all the data collected
during all other periods in assessing compliance and the operation of
the control device and associated control system.
    (d) Except for periods of monitoring system malfunctions, repairs
associated with monitoring system malfunctions, and required monitoring
system quality assurance or quality control activities (including, as
applicable, system accuracy audits, calibration checks, and required
zero and span adjustments), failure to collect required data is a
deviation of the monitoring requirements. In calculating monitoring
results, do not use any data collected during periods of startup and
shutdown, when the monitoring system is out of control as specified in
your site-specific monitoring plan, while conducting repairs associated
with periods when the monitoring system is out of control, or while
conducting required monitoring system quality assurance or quality
control activities. You must calculate monitoring results using all
other monitoring data collected while the process is operating. You
must report all periods when the monitoring system is out of control in
your semi-annual report.
0
15. Section 63.7540 is amended by:
0
a. Revising paragraph (a)(2) introductory text.
0
b. Revising paragraph (a)(3).
0
c. Revising paragraph (a)(5).
0
d. Revising paragraph (a)(8)(ii).
0
e. Revising paragraph (a)(10) introductory text.
0
f. Revising paragraph (a)(10)(vi) introductory text.
0
g. Revising paragraph (a)(17).
0
h. Revising paragraph (a)(19)(iii).
0
i. Revising paragraph (d).

    The revisions read as follows:

Sec.  63.7540  How do I demonstrate continuous compliance with the
emission limitations, fuel specifications and work practice standards?

    (a) * * *
    (2) As specified in Sec.  63.7550(d), you must keep records of the
type and amount of all fuels burned in each boiler or process heater
during the reporting period to demonstrate that all fuel types and
mixtures of fuels burned would result in either of the following:
* * * * *
    (3) If you demonstrate compliance with an applicable HCl emission
limit through fuel analysis for a solid or liquid fuel and you plan to
burn a new type of solid or liquid fuel, you must recalculate the HCl
emission rate using Equation 16 of Sec.  63.7530 according to
paragraphs (a)(3)(i) through (iii) of this section. You are not
required to conduct fuel analyses for the fuels described in Sec.
63.7510(a)(2)(i) through (iii). You may exclude the fuels described in
Sec.  63.7510(a)(2)(i) through (iii) when recalculating the HCl
emission rate.
    (i) You must determine the chlorine concentration for any new fuel
type in units of pounds per million Btu, based on supplier data or your
own fuel analysis, according to the provisions in your site-specific
fuel analysis plan developed according to Sec.  63.7521(b).
    (ii) You must determine the new mixture of fuels that will have the
highest content of chlorine.
    (iii) Recalculate the HCl emission rate from your boiler or process
heater under these new conditions using Equation 16 of Sec.  63.7530.
The recalculated HCl emission rate must be less than the applicable
emission limit.
* * * * *
    (5) If you demonstrate compliance with an applicable mercury
emission limit through fuel analysis, and you plan to burn a new type
of fuel, you must recalculate the mercury emission rate using Equation
17 of Sec.  63.7530 according to the procedures specified in paragraphs
(a)(5)(i) through (iii) of this section. You are not required to
conduct fuel analyses for the fuels described in Sec.  63.7510(a)(2)(i)
through (iii). You may exclude the fuels described in Sec.
63.7510(a)(2)(i) through (iii) when recalculating the mercury emission
rate.
    (i) You must determine the mercury concentration for any new fuel
type in units of pounds per million Btu, based on supplier data or your
own fuel analysis, according to the provisions in your site-specific
fuel analysis plan developed according to Sec.  63.7521(b).
    (ii) You must determine the new mixture of fuels that will have the
highest content of mercury.
    (iii) Recalculate the mercury emission rate from your boiler or
process heater under these new conditions using Equation 17 of Sec.
63.7530. The recalculated mercury emission rate must be less than the
applicable emission limit.
* * * * *
    (8) * * *
    (ii) Maintain a CO emission level below or at your applicable
alternative CO CEMS-based standard in Tables 1 or 2 or 11 through 13 to
this subpart at all times the affected unit is subject to numeric
emission limits.
* * * * *
    (10) If your boiler or process heater has a heat input capacity of
10 million Btu per hour or greater, you must conduct an annual tune-up
of the boiler or process heater to demonstrate continuous compliance as
specified in paragraphs (a)(10)(i) through (vi) of this section. You
must conduct the tune-up while burning the type of fuel (or fuels in
case of units that routinely burn a mixture) that provided the majority
of the heat input to the boiler or process heater over the 12 months
prior to the tune-up. This frequency does not apply to limited-use
boilers and process heaters, as defined in Sec.  63.7575, or units with
continuous oxygen trim systems that maintain an optimum air to fuel
ratio.
* * * * *
    (vi) Maintain on-site and submit, if requested by the
Administrator, a report containing the information in paragraphs
(a)(10)(vi)(A) through (C) of this section,
* * * * *
    (17) If you demonstrate compliance with an applicable TSM emission
limit through fuel analysis for solid or liquid fuels, and you plan to
burn a new type of fuel, you must recalculate the TSM emission rate
using Equation 18 of Sec.  63.7530 according to the procedures
specified in paragraphs (a)(5)(i) through (iii) of this section. You
are not required to conduct fuel analyses for the fuels described in
Sec.  63.7510(a)(2)(i) through (iii). You may exclude the fuels
described in Sec.  63.7510(a)(2)(i) through (iii) when recalculating
the TSM emission rate.
    (i) You must determine the TSM concentration for any new fuel type
in units of pounds per million Btu, based on supplier data or your own
fuel analysis, according to the provisions in your site-specific fuel
analysis plan developed according to Sec.  63.7521(b).
    (ii) You must determine the new mixture of fuels that will have the
highest content of TSM.
    (iii) Recalculate the TSM emission rate from your boiler or process
heater under these new conditions using Equation 18 of Sec.  63.7530.
The recalculated TSM emission rate must be less than the applicable
emission limit.
* * * * *
    (19) * * *
* * * * *
    (iii) Collect PM CEMS hourly average output data for all boiler
operating hours except as indicated in paragraph (v) of this section.
* * * * *
    (d) For startup and shutdown, you must meet the work practice
standards according to items 5 and 6 of Table 3 of this subpart.
* * * * *
0
16. Section 63.7545 is amended by revising paragraphs (e)(8)(i) and (h)
introductory text.

Sec.  63.7545  What notifications must I submit and when?

* * * * *
    (e) * * *
    (8) * * *
    (i) ``This facility completed the required initial tune-up
according to the procedures in Sec.  63.7540(a)(10)(i) through (vi).''
* * * * *
    (h) If you have switched fuels or made a physical change to the
boiler or process heater and the fuel switch or physical change
resulted in the applicability of a different subcategory, you must
provide notice of the date upon which you switched fuels or made the
physical change within 30 days of the switch/change. The notification
must identify:
* * * * *
0
17. Section 63.7550 is amended by revising paragraphs (b), (c), (d)
introductory text, (d)(1), and (h) to read as follows:

Sec.  63.7550  What reports must I submit and when?

* * * * *
    (b) Unless the EPA Administrator has approved a different schedule
for submission of reports under Sec.  63.10(a), you must submit each
report, according to paragraph (h) of this section, by the date in
Table 9 to this subpart and according to the requirements in paragraphs
(b)(1) through (4) of this section. For units that are subject only to
the energy assessment requirement and a requirement to conduct an
annual, biennial, or 5-year tune-up according to Sec.  63.7540(a)(10),
(11), or (12),

respectively, and not subject to emission limits or Table 4 operating
limits, you may submit only an annual, biennial, or 5-year compliance
report, as applicable, as specified in paragraphs (b)(1) through (4) of
this section, instead of a semi-annual compliance report.
    (1) The first semi-annual compliance report must cover the period
beginning on the compliance date that is specified for each boiler or
process heater in Sec.  63.7495 and ending on June 30 or December 31,
whichever date is the first date that occurs at least 180 days (or 1,
2, or 5 years, as applicable, if submitting an annual, biennial, or 5-
year compliance report) after the compliance date that is specified for
your source in Sec.  63.7495.
    (2) The first semi-annual compliance report must be postmarked or
submitted no later than July 31 or January 31, whichever date is the
first date following the end of the first calendar half after the
compliance date that is specified for each boiler or process heater in
Sec.  63.7495. The first annual, biennial, or 5-year compliance report
must be postmarked or submitted no later than January 31.
    (3) Each subsequent semi-annual compliance report must cover the
semiannual reporting period from January 1 through June 30 or the
semiannual reporting period from July 1 through December 31. Annual,
biennial, and 5-year compliance reports must cover the applicable 1-,
2-, or 5-year periods from January 1 to December 31.
    (4) Each subsequent semi-annual compliance report must be
postmarked or submitted no later than July 31 or January 31, whichever
date is the first date following the end of the semiannual reporting
period. Annual, biennial, and 5-year compliance reports must be
postmarked or submitted no later than January 31.
    (c) A compliance report must contain the following information
depending on how the facility chooses to comply with the limits set in
this rule.
    (1) If the facility is subject to the requirements of a tune up you
must submit a compliance report with the information in paragraphs
(c)(5)(i) through (iii), (xiv) and (xvii) of this section, and
paragraph (c)(5)(iv) of this section for limited-use boiler or process
heater.
    (2) If you are complying with the fuel analysis you must submit a
compliance report with the information in paragraphs (c)(5)(i) through
(iii), (vi), (x), (xi), (xiii), (xv), (xvii), (xviii) and paragraph (d)
of this section.
    (3) If you are complying with the applicable emissions limit with
performance testing you must submit a compliance report with the
information in (c)(5)(i) through (iii), (vi), (vii), (viii), (ix),
(xi), (xiii), (xv), (xvii), (xviii) and paragraph (d) of this section.
    (4) If you are complying with an emissions limit using a CMS the
compliance report must contain the information required in paragraphs
(c)(5)(i) through (iii), (v), (vi), (xi) through (xiii), (xv) through
(xviii), and paragraph (e) of this section.
    (5)(i) Company and Facility name and address.
    (ii) Process unit information, emissions limitations, and operating
parameter limitations.
    (iii) Date of report and beginning and ending dates of the
reporting period.
    (iv) The total operating time during the reporting period.
    (v) If you use a CMS, including CEMS, COMS, or CPMS, you must
include the monitoring equipment manufacturer(s) and model numbers and
the date of the last CMS certification or audit.
    (vi) The total fuel use by each individual boiler or process heater
subject to an emission limit within the reporting period, including,
but not limited to, a description of the fuel, whether the fuel has
received a non-waste determination by the EPA or your basis for
concluding that the fuel is not a waste, and the total fuel usage
amount with units of measure.
    (vii) If you are conducting performance tests once every 3 years
consistent with Sec.  63.7515(b) or (c), the date of the last 2
performance tests and a statement as to whether there have been any
operational changes since the last performance test that could increase
emissions.
    (viii) A statement indicating that you burned no new types of fuel
in an individual boiler or process heater subject to an emission limit.
Or, if you did burn a new type of fuel and are subject to a HCl
emission limit, you must submit the calculation of chlorine input,
using Equation 7 of Sec.  63.7530, that demonstrates that your source
is still within its maximum chlorine input level established during the
previous performance testing (for sources that demonstrate compliance
through performance testing) or you must submit the calculation of HCl
emission rate using Equation 16 of Sec.  63.7530 that demonstrates that
your source is still meeting the emission limit for HCl emissions (for
boilers or process heaters that demonstrate compliance through fuel
analysis). If you burned a new type of fuel and are subject to a
mercury emission limit, you must submit the calculation of mercury
input, using Equation 8 of Sec.  63.7530, that demonstrates that your
source is still within its maximum mercury input level established
during the previous performance testing (for sources that demonstrate
compliance through performance testing), or you must submit the
calculation of mercury emission rate using Equation 17 of Sec.  63.7530
that demonstrates that your source is still meeting the emission limit
for mercury emissions (for boilers or process heaters that demonstrate
compliance through fuel analysis). If you burned a new type of fuel and
are subject to a TSM emission limit, you must submit the calculation of
TSM input, using Equation 9 of Sec.  63.7530, that demonstrates that
your source is still within its maximum TSM input level established
during the previous performance testing (for sources that demonstrate
compliance through performance testing), or you must submit the
calculation of TSM emission rate, using Equation 18 of Sec.  63.7530,
that demonstrates that your source is still meeting the emission limit
for TSM emissions (for boilers or process heaters that demonstrate
compliance through fuel analysis).
    (ix) If you wish to burn a new type of fuel in an individual boiler
or process heater subject to an emission limit and you cannot
demonstrate compliance with the maximum chlorine input operating limit
using Equation 7 of Sec.  63.7530 or the maximum mercury input
operating limit using Equation 8 of Sec.  63.7530, or the maximum TSM
input operating limit using Equation 9 of Sec.  63.7530 you must
include in the compliance report a statement indicating the intent to
conduct a new performance test within 60 days of starting to burn the
new fuel.
    (x) A summary of any monthly fuel analyses conducted to demonstrate
compliance according to Sec. Sec.  63.7521 and 63.7530 for individual
boilers or process heaters subject to emission limits, and any fuel
specification analyses conducted according to Sec. Sec.  63.7521(f) and
63.7530(g).
    (xi) If there are no deviations from any emission limits or
operating limits in this subpart that apply to you, a statement that
there were no deviations from the emission limits or operating limits
during the reporting period.
    (xii) If there were no deviations from the monitoring requirements
including no periods during which the CMSs, including CEMS, COMS, and
CPMS, were out of control as specified in Sec.  63.8(c)(7), a statement
that there were no deviations and no periods during which the CMS were
out of control during the reporting period.
    (xiii) If a malfunction occurred during the reporting period, the
report must

include the number, duration, and a brief description for each type of
malfunction which occurred during the reporting period and which caused
or may have caused any applicable emission limitation to be exceeded.
The report must also include a description of actions taken by you
during a malfunction of a boiler, process heater, or associated air
pollution control device or CMS to minimize emissions in accordance
with Sec.  63.7500(a)(3), including actions taken to correct the
malfunction.
    (xiv) Include the date of the most recent tune-up for each unit
subject to only the requirement to conduct an annual, biennial, or 5-
year tune-up according to Sec.  63.7540(a)(10), (11), or (12)
respectively. Include the date of the most recent burner inspection if
it was not done annually, biennially, or on a 5-year period and was
delayed until the next scheduled or unscheduled unit shutdown.
    (xv) If you plan to demonstrate compliance by emission averaging,
certify the emission level achieved or the control technology employed
is no less stringent than the level or control technology contained in
the notification of compliance status in Sec.  63.7545(e)(5)(i).
    (xvi) For each reporting period, the compliance reports must
include all of the calculated 30 day rolling average values based on
the daily CEMS (CO and mercury) and CPMS (PM CPMS output, scrubber pH,
scrubber liquid flow rate, scrubber pressure drop) data.
    (xvii) Statement by a responsible official with that official's
name, title, and signature, certifying the truth, accuracy, and
completeness of the content of the report.
    (xviii) For each instance of startup or shutdown include the
information required to be monitored, collected, or recorded according
to the requirements of Sec.  63.7555(d).
* * * * *
    (d) For each deviation from an emission limit or operating limit in
this subpart that occurs at an individual boiler or process heater
where you are not using a CMS to comply with that emission limit or
operating limit, or from the work practice standards for periods if
startup and shutdown, the compliance report must additionally contain
the information required in paragraphs (d)(1) through (3) of this
section.
    (1) A description of the deviation and which emission limit,
operating limit, or work practice standard from which you deviated.
* * * * *
    (h) You must submit the reports according to the procedures
specified in paragraphs (h)(1) through (3) of this section.
    (1) Within 60 days after the date of completing each performance
test (defined in Sec.  63.2) required by this subpart, you must submit
the results of the performance test, including any associated fuel
analyses, following the procedure specified in either paragraph
(h)(1)(i) or (h)(1)(ii) of this section.
    (i) For data collected using test methods supported by the EPA's
Electronic Reporting Tool (ERT) as listed on the EPA's ERT Web site
(http://www.epa.gov/ttn/chief/ert/index.html) at the time of the test,
you must submit the results of the performance test to the EPA via the
Compliance and Emissions Data Reporting Interface (CEDRI). (CEDRI can
be accessed through the EPA's Central Data Exchange (CDX) (www.epa.gov/cdx).) Performance test data must be submitted in a file format
generated through use of the EPA's ERT. Instead of submitting
performance test data in a file format generated through the use of the
EPA's ERT, you may submit an alternate electronic file format
consistent with the extensible markup language (XML) schema listed on
the EPA's ERT Web site, once the XML schema is available. If you claim
that some of the performance test information being submitted is
confidential business information (CBI), you must submit a complete
file generated through the use of the EPA's ERT (or an alternate
electronic file consistent with the XML schema listed on the EPA's ERT
Web site once the XML schema is available), including information
claimed to be CBI, on a compact disc, flash drive or other commonly
used electronic storage media to the EPA. The electronic media must be
clearly marked as CBI and mailed to U.S. EPA/OAPQS/CORE CBI Office,
Attention: Group Leader, Measurement Policy Group, MD C404-02, 4930 Old
Page Rd., Durham, NC 27703. The same ERT or alternate file with the CBI
omitted must be submitted to the EPA via the EPA's CDX as described
earlier in this paragraph.
    (ii) For data collected using test methods that are not supported
by the EPA's ERT as listed on the EPA's ERT Web site, you must submit
the results of the performance test to the Administrator at the
appropriate address listed in Sec.  63.13.
    (2) Within 60 days after the date of completing each CEMS
performance evaluation (as defined in 63.2), you must submit the
results of the performance evaluation following the procedure specified
in either paragraph (h)(2)(i) or (h)(2)(ii) of this section.
    (i) For performance evaluations of continuous monitoring systems
measuring relative accuracy test audit (RATA) pollutants that are
supported by the EPA's ERT as listed on the EPA's ERT Web site at the
time of the test, you must submit the results of the performance
evaluation to the EPA via the CEDRI. (CEDRI can be accessed through the
EPA's CDX.) Performance evaluation data must be submitted in a file
format generated through the use of the EPA's ERT. Instead of
submitting performance evaluation data in a file format generated
through the use of the EPA's ERT, you may submit an alternate
electronic file format consistent with the XML schema listed on the
EPA's ERT Web site, once the XML schema is available. If you claim that
some of the performance evaluation information being submitted is CBI,
you must submit a complete file generated through the use of the EPA's
ERT (or an alternate electronic file consistent with the XML schema
listed on the EPA's ERT Web site once the XML schema is available),
including information claimed to be CBI, on a compact disc, flash drive
or other commonly used electronic storage media to the EPA. The
electronic media must be clearly marked as CBI and mailed to U.S. EPA/
OAPQS/CORE CBI Office, Attention: Group Leader, Measurement Policy
Group, MD C404-02, 4930 Old Page Rd., Durham, NC 27703. The same ERT or
alternate file with the CBI omitted must be submitted to the EPA via
the EPA's CDX as described earlier in this paragraph.
    (ii) For any performance evaluations of continuous monitoring
systems measuring RATA pollutants that are not supported by the EPA's
ERT as listed on the ERT Web site, you must submit the results of the
performance evaluation to the Administrator at the appropriate address
listed in Sec.  63.13.
    (3) You must submit all reports required by Table 9 of this subpart
electronically to the EPA via the CEDRI. (CEDRI can be accessed through
the EPA's CDX.) You must use the appropriate electronic report in CEDRI
for this subpart. Instead of using the electronic report in CEDRI for
this subpart, you may submit an alternate electronic file consistent
with the XML schema listed on the CEDRI Web site (http://www.epa.gov/ttn/chief/cedri/index.html), once the XML schema is available. If the
reporting form specific to this subpart is not available in CEDRI at
the time that the report is due, you must submit the report to the
Administrator at the appropriate address listed in Sec.  63.13. You
must

begin submitting reports via CEDRI no later than 90 days after the form
becomes available in CEDRI.
0
18. Section 63.7555 is amended by:
0
a. Adding paragraph (a)(3).
0
b. Removing paragraph (d)(3).
0
c. Redesignating paragraphs (d)(4) through (d)(11) as paragraphs (d)(3)
through (d)(10).
0
d. Revising newly designated paragraphs (d)(3), (d)(4), and (d)(8).
0
e. Adding new paragraphs (d)(11) and (12).
0
f. Removing paragraphs (i) and (j).
    The revisions and additions read as follows:

Sec.  63.7555  What records must I keep?

    (a) * * *
    (3) For units in the limited use subcategory, you must keep a copy
of the federally enforceable permit that limits the annual capacity
factor to less than or equal to 10 percent and fuel use records for the
days the boiler or process heater was operating.
* * * * *
    (d) * * *
    (3) A copy of all calculations and supporting documentation of
maximum chlorine fuel input, using Equation 7 of Sec.  63.7530, that
were done to demonstrate continuous compliance with the HCl emission
limit, for sources that demonstrate compliance through performance
testing. For sources that demonstrate compliance through fuel analysis,
a copy of all calculations and supporting documentation of HCl emission
rates, using Equation 16 of Sec.  63.7530, that were done to
demonstrate compliance with the HCl emission limit. Supporting
documentation should include results of any fuel analyses and basis for
the estimates of maximum chlorine fuel input or HCl emission rates. You
can use the results from one fuel analysis for multiple boilers and
process heaters provided they are all burning the same fuel type.
However, you must calculate chlorine fuel input, or HCl emission rate,
for each boiler and process heater.
    (4) A copy of all calculations and supporting documentation of
maximum mercury fuel input, using Equation 8 of Sec.  63.7530, that
were done to demonstrate continuous compliance with the mercury
emission limit for sources that demonstrate compliance through
performance testing. For sources that demonstrate compliance through
fuel analysis, a copy of all calculations and supporting documentation
of mercury emission rates, using Equation 17 of Sec.  63.7530, that
were done to demonstrate compliance with the mercury emission limit.
Supporting documentation should include results of any fuel analyses
and basis for the estimates of maximum mercury fuel input or mercury
emission rates. You can use the results from one fuel analysis for
multiple boilers and process heaters provided they are all burning the
same fuel type. However, you must calculate mercury fuel input, or
mercury emission rates, for each boiler and process heater.
* * * * *
    (8) A copy of all calculations and supporting documentation of
maximum TSM fuel input, using Equation 9 of Sec.  63.7530, that were
done to demonstrate continuous compliance with the TSM emission limit
for sources that demonstrate compliance through performance testing.
For sources that demonstrate compliance through fuel analysis, a copy
of all calculations and supporting documentation of TSM emission rates,
using Equation 18 of Sec.  63.7530, that were done to demonstrate
compliance with the TSM emission limit. Supporting documentation should
include results of any fuel analyses and basis for the estimates of
maximum TSM fuel input or TSM emission rates. You can use the results
from one fuel analysis for multiple boilers and process heaters
provided they are all burning the same fuel type. However, you must
calculate TSM fuel input, or TSM emission rates, for each boiler and
process heater.
* * * * *
    (11) For each startup period, you must maintain records of the time
that clean fuel combustion begins; the time when firing (i.e., feeding)
start for coal/solid fossil fuel, biomass/bio-based solids, heavy
liquid fuel, or gas 2 (other) gases; the time when useful thermal
energy is first supplied; and the time when the PM controls are
engaged.
    (12) For each startup period, you must maintain records of the
hourly steam temperature, hourly steam pressure, hourly steam flow,
hourly flue gas temperature, and all hourly average CMS data (e.g.,
CEMS, PM CPMS, COMS, ESP total secondary electric power input, scrubber
pressure drop, scrubber liquid flow rate) collected during each startup
period to confirm that the control devices are engaged. In addition, if
compliance with the PM emission limit is demonstrated using a PM
control device, you must maintain records as specified in paragraphs
(d)(12)(i) through (iii) of this section.
    (i) For a boiler or process heater with an electrostatic
precipitator, record the number of fields in service, as well as each
field's secondary voltage and secondary current during each hour of
startup.
    (ii) For a boiler or process heater with a fabric filter, record
the number of compartments in service, as well as the differential
pressure across the baghouse during each hour of startup.
    (iii) For a boiler or process heater with a wet scrubber needed for
filterable PM control, record the scrubber liquid to fuel ratio and the
differential pressure of the liquid during each hour of startup.
* * * * *
0
19. Section 63.7575 is amended by:
0
a. Revising the definitions for ``Coal,'' ``Limited-use boiler or
process heater,'' ``Load fraction,'' ``Oxygen trim system,''
``Shutdown,'' ``Startup,'' ``Steam output,'' and ``Temporary boiler.''
0
b. Adding in alphabetical order definitions for ``Fossil fuel'' and
``Useful thermal energy.''
0
c. Removing the definition for ``Affirmative defense.''
    The revisions read as follows:

Sec.  63.7575  What definitions apply to this subpart?

* * * * *
    Coal means all solid fuels classifiable as anthracite, bituminous,
sub-bituminous, or lignite by ASTM D388 (incorporated by reference, see
Sec.  63.14), coal refuse, and petroleum coke. For the purposes of this
subpart, this definition of ``coal'' includes synthetic fuels derived
from coal, including but not limited to, solvent-refined coal, coal-oil
mixtures, and coal-water mixtures. Coal derived gases and liquids are
excluded from this definition.
* * * * *
    Fossil fuel means natural gas, oil, coal, and any form of solid,
liquid, or gaseous fuel derived from such material.
* * * * *
    Limited-use boiler or process heater means any boiler or process
heater that burns any amount of solid, liquid, or gaseous fuels and has
a federally enforceable annual capacity factor of no more than 10
percent.
* * * * *
    Load fraction means the actual heat input of a boiler or process
heater divided by heat input during the performance test that
established the minimum sorbent injection rate or minimum activated
carbon injection rate, expressed as a fraction (e.g., for 50 percent
load the load fraction is 0.5). For boilers and process heaters that
co-fire natural gas or refinery gas with a solid or liquid fuel, the
load fraction is determined by the actual heat input of the solid or
liquid fuel divided by heat input of the solid or liquid fuel fired
during the performance test (e.g., if the performance test was
conducted at 100 percent solid fuel firing, for 100 percent

load firing 50 percent solid fuel and 50 percent natural gas the load
fraction is 0.5).
* * * * *
    Oxygen trim system means a system of monitors that is used to
maintain excess air at the desired level in a combustion device over
its operating load range. A typical system consists of a flue gas
oxygen and/or CO monitor that automatically provides a feedback signal
to the combustion air controller or draft controller.
* * * * *
    Shutdown means the period in which cessation of operation of a
boiler or process heater is initiated for any purpose. Shutdown begins
when the boiler or process heater no longer makes useful thermal energy
(such as heat or steam) for heating, cooling, or process purposes and/
or generates electricity or when no fuel is being fed to the boiler or
process heater, whichever is earlier. Shutdown ends when the boiler or
process heater no longer makes useful thermal energy (such as steam or
heat) for heating, cooling, or process purposes and/or generates
electricity, and no fuel is being combusted in the boiler or process
heater.
* * * * *
    Startup means:
    (1) Either the first-ever firing of fuel in a boiler or process
heater for the purpose of supplying steam or heat for heating and/or
producing electricity, or for any other purpose, or the firing of fuel
in a boiler after a shutdown event for any purpose. Startup ends when
any of the steam or heat from the boiler or process heater is supplied
for heating, and/or producing electricity, or for any other purpose, or
    (2) The period in which operation of a boiler or process heater is
initiated for any purpose. Startup begins with either the first-ever
firing of fuel in a boiler or process heater for the purpose of
supplying useful thermal energy (such as steam or heat) for heating,
cooling or process purposes, or producing electricity, or the firing of
fuel in a boiler or process heater for any purpose after a shutdown
event. Startup ends four hours after when the boiler or process heater
makes useful thermal energy (such as heat or steam) for heating,
cooling, or process purposes, or generates electricity, whichever is
earlier.
    Steam output means:
    (1) For a boiler that produces steam for process or heating only
(no power generation), the energy content in terms of MMBtu of the
boiler steam output,
    (2) For a boiler that cogenerates process steam and electricity
(also known as combined heat and power), the total energy output, which
is the sum of the energy content of the steam exiting the turbine and
sent to process in MMBtu and the energy of the electricity generated
converted to MMBtu at a rate of 10,000 Btu per kilowatt-hour generated
(10 MMBtu per megawatt-hour), and
    (3) For a boiler that generates only electricity, the alternate
output-based emission limits would be the appropriate emission limit
from Table 1 or 2 of this subpart in units of pounds per million Btu
heat input (lb per MWh).
    (4) For a boiler that performs multiple functions and produces
steam to be used for any combination of (1), (2) and (3) that includes
electricity generation (3), the total energy output, in terms of MMBtu
of steam output, is the sum of the energy content of steam sent
directly to the process and/or used for heating (S1), the
energy content of turbine steam sent to process plus energy in
electricity according to (2) above (S2), and the energy
content of electricity generated by a electricity only turbine as (3)
above (S3) and would be calculated using Equation 21 of this
section. In the case of boilers supplying steam to one or more common
heaters, S1, S2, and MW(3) for each
boiler would be calculated based on the its (steam energy) contribution
(fraction of total stam energy) to the common heater.

[GRAPHIC] [TIFF OMITTED] TP21JA15.007

Where:

SOM = Total steam output for multi-function boiler, MMBtu
S1 = Energy content of steam sent directly to the process
and/or used for heating, MMBtu
S2 = Energy content of turbine steam sent to the process
plus energy in electricity according to (2) above, MMBtu
MW(3) = Electricity generated according to (3) above, MWh
CFn = Conversion factor for the appropriate subcategory for
converting electricity generated according to (3) above to
equivalent steam energy, MMBtu/MWh
CFn for emission limits for boilers in the unit designed to burn
solid fuel subcategory = 10.8
CFn PM and CO emission limits for boilers in one of the
subcategories of units designed to burn coal = 11.7
CFn PM and CO emission limits for boilers in one of the
subcategories of units designed to burn biomass = 12.1
CFn for emission limits for boilers in one of the subcategories of
units designed to burn liquid fuel = 11.2
CFn for emission limits for boilers in the unit designed to burn gas
2 (other) subcategory = 6.2
* * * * *
    Temporary boiler means any gaseous or liquid fuel boiler or process
heater that is designed to, and is capable of, being carried or moved
from one location to another by means of, for example, wheels, skids,
carrying handles, dollies, trailers, or platforms. A boiler or process
heater is not a temporary boiler or process heater if any one of the
following conditions exists:
    (1) The equipment is attached to a foundation.
    (2) The boiler or process heater or a replacement remains at a
location within the facility and performs the same or similar function
for more than 12 consecutive months, unless the regulatory agency
approves an extension. An extension may be granted by the regulating
agency upon petition by the owner or operator of a unit specifying the
basis for such a request. Any temporary boiler or process heater that
replaces a temporary boiler or process heater at a location and
performs the same or similar function will be included in calculating
the consecutive time period.
    (3) The equipment is located at a seasonal facility and operates
during the full annual operating period of the seasonal facility,
remains at the facility for at least 2 years, and operates at that
facility for at least 3 months each year.
    (4) The equipment is moved from one location to another within the
facility but continues to perform the same or similar function and
serve the same electricity, process heat, steam, and/or hot water
system in an attempt to circumvent the residence time requirements of
this definition.
* * * * *
    Useful thermal energy means energy (i.e., steam, hot water, or
process heat) that meets the minimum operating temperature and/or
pressure required by any energy use system that uses energy provided by
the affected boiler or process heater.
* * * * *
0
20. Table 1 to subpart DDDDD of part 63 is revised to read as follows:

    Table 1 to Subpart DDDDD of Part 63--Emission Limits for New or Reconstructed Boilers and Process Heaters
           As Stated in Sec.   63.7500, You Must Comply With the Following Applicable Emission Limits:
                     [Units with heat input capacity of 10 million Btu per hour or greater]
----------------------------------------------------------------------------------------------------------------
                                                                        Or the emissions
                                                 The emissions must    must not exceed the
  If your boiler or process        For the         not exceed the           following       Using this specified
heater is in this subcategory     following      following emission    alternative output-   sampling volume or
            . . .               pollutants . .     limits, except     based limits, except   test run duration .
                                      .          during startup and    during startup and            . .
                                                   shutdown . . .        shutdown . . .
----------------------------------------------------------------------------------------------------------------
1. Units in all subcategories  a. HCl.........  2.2E-02 lb per MMBtu  2.5E-02 lb per MMBtu  For M26A, collect a
 designed to burn solid fuel..                   of heat input.        of steam output or    minimum of 1 dscm
                                                                       0.28 lb per MWh.      per run; for M26
                                                                                collect a minimum
                                                                                of 120 liters per
                                                                                run.
                               b. Mercury.....  8.0E-07 \a\ lb per    8.7E-07 \a\ lb per    For M29, collect a
                                                 MMBtu of heat input.  MMBtu of steam        minimum of 4 dscm
                                                                       output or 1.1E-05     per run; for M30A
                                                                       \a\ lb per MWh.       or M30B, collect a
                                                                                minimum sample as
                                                                                specified in the
                                                                                method; for ASTM
                                                                                D6784 \b\ collect a
                                                                                minimum of 4 dscm.
2. Units designed to burn      a. Filterable    1.1E-03 lb per MMBtu  1.1E-03 lb per MMBtu  Collect a minimum of
 coal/solid fossil fuel.        PM (or TSM).     of heat input; or     of steam output or    3 dscm per run.
                                                 (2.3E-05 lb per       1.4E-02 lb per MWh;
                                                 MMBtu of heat         or (2.7E-05 lb per
                                                 input).               MMBtu of steam
                                                                       output or 2.9E-04
                                                                       lb per MWh).
3. Pulverized coal boilers     a. Carbon        130 ppm by volume on  0.11 lb per MMBtu of  1 hr minimum
 designed to burn coal/solid    monoxide (CO)    a dry basis           steam output or 1.4   sampling time.
 fossil fuel.                   (or CEMS).       corrected to 3        lb per MWh; 3-run
                                                 percent oxygen, 3-    average.
                                                 run average; or
                                                 (320 ppm by volume
                                                 on a dry basis
                                                 corrected to 3
                                                 percent oxygen \d\,
                                                 30-day rolling
                                                 average).
4. Stokers/others designed to  a. CO (or CEMS)  130 ppm by volume on  0.12 lb per MMBtu of  1 hr minimum
 burn coal/solid fossil fuel.                    a dry basis           steam output or 1.4   sampling time.
                                                 corrected to 3        lb per MWh; 3-run
                                                 percent oxygen, 3-    average.
                                                 run average; or
                                                 (340 ppm by volume
                                                 on a dry basis
                                                 corrected to 3
                                                 percent oxygen \d\,
                                                 30-day rolling
                                                 average).
5. Fluidized bed units         a. CO (or CEMS)  130 ppm by volume on  0.11 lb per MMBtu of  1 hr minimum
 designed to burn coal/solid                     a dry basis           steam output or 1.4   sampling time.
 fossil fuel.                                    corrected to 3        lb per MWh; 3-run
                                                 percent oxygen, 3-    average.
                                                 run average; or
                                                 (230 ppm by volume
                                                 on a dry basis
                                                 corrected to 3
                                                 percent oxygen \d\,
                                                 30-day rolling
                                                 average).
6. Fluidized bed units with    a. CO (or CEMS)  140 ppm by volume on  1.2E-01 lb per MMBtu  1 hr minimum
 an integrated heat exchanger                    a dry basis           of steam output or    sampling time.
 designed to burn coal/solid                     corrected to 3        1.5 lb per MWh; 3-
 fossil fuel.                                    percent oxygen, 3-    run average.
                                                 run average; or
                                                 (150 ppm by volume
                                                 on a dry basis
                                                 corrected to 3
                                                 percent oxygen \d\,
                                                 30-day rolling
                                                 average).
7. Stokers/sloped grate/       a. CO (or CEMS)  620 ppm by volume on  5.8E-01 lb per MMBtu  1 hr minimum
 others designed to burn wet                     a dry basis           of steam output or    sampling time.
 biomass fuel.                                   corrected to 3        6.8 lb per MWh; 3-
                                                 percent oxygen, 3-    run average.
                                                 run average; or
                                                 (390 ppm by volume
                                                 on a dry basis
                                                 corrected to 3
                                                 percent oxygen \d\,
                                                 30-day rolling
                                                 average).
                               b. Filterable    3.0E-02 lb per MMBtu  3.5E-02 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    2 dscm per run.
                                                 (2.6E-05 lb per       4.2E-01 lb per MWh;
                                                 MMBtu of heat         or (2.7E-05 lb per
                                                 input).               MMBtu of steam
                                                                       output or 3.7E-04
                                                                       lb per MWh).
8. Stokers/sloped grate/       a. CO..........  460 ppm by volume on  4.2E-01 lb per MMBtu  1 hr minimum
 others designed to burn kiln-                   a dry basis           of steam output or    sampling time.
 dried biomass fuel.                             corrected to 3        5.1 lb per MWh.
                                                 percent oxygen.
                               b. Filterable    3.0E-02 lb per MMBtu  3.5E-02 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    2 dscm per run.
                                                 (4.0E-03 lb per       4.2E-01 lb per MWh;
                                                 MMBtu of heat         or (4.2E-03 lb per
                                                 input).               MMBtu of steam
                                                                       output or 5.6E-02
                                                                       lb per MWh).

9. Fluidized bed units         a. CO (or CEMS)  230 ppm by volume on  2.2E-01 lb per MMBtu  1 hr minimum
 designed to burn biomass/bio-                   a dry basis           of steam output or    sampling time.
 based solids.                                   corrected to 3        2.6 lb per MWh; 3-
                                                 percent oxygen, 3-    run average.
                                                 run average; or
                                                 (310 ppm by volume
                                                 on a dry basis
                                                 corrected to 3
                                                 percent oxygen \d\,
                                                 30-day rolling
                                                 average).
                               b. Filterable    9.8E-03 lb per MMBtu  1.2E-02 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    3 dscm per run.
                                                 (8.3E-05 \a\ lb per   0.14 lb per MWh; or
                                                 MMBtu of heat         (1.1E-04 \a\ lb per
                                                 input).               MMBtu of steam
                                                                       output or 1.2E-03
                                                                       \a\ lb per MWh).
10. Suspension burners         a. CO (or CEMS)  2,400 ppm by volume   1.9 lb per MMBtu of   1 hr minimum
 designed to burn biomass/bio-                   on a dry basis        steam output or 27    sampling time.
 based solids.                                   corrected to 3        lb per MWh; 3-run
                                                 percent oxygen, 3-    average.
                                                 run average; or
                                                 (2,000 ppm by
                                                 volume on a dry
                                                 basis corrected to
                                                 3 percent oxygen
                                                 \d\, 10-day rolling
                                                 average).
                               b. Filterable    3.0E-02 lb per MMBtu  3.1E-02 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    2 dscm per run.
                                                 (6.5E-03 lb per       4.2E-01 lb per MWh;
                                                 MMBtu of heat         or (6.6E-03 lb per
                                                 input).               MMBtu of steam
                                                                       output or 9.1E-02
                                                                       lb per MWh).
11. Dutch Ovens/Pile burners   a. CO (or CEMS)  330 ppm by volume on  3.5E-01 lb per MMBtu  1 hr minimum
 designed to burn biomass/bio-                   a dry basis           of steam output or    sampling time.
 based solids.                                   corrected to 3        3.6 lb per MWh; 3-
                                                 percent oxygen, 3-    run average.
                                                 run average; or
                                                 (520 ppm by volume
                                                 on a dry basis
                                                 corrected to 3
                                                 percent oxygen \d\,
                                                 10-day rolling
                                                 average).
                               b. Filterable    3.2E-03 lb per MMBtu  4.3E-03 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    3 dscm per run.
                                                 (3.9E-05 lb per       4.5E-02 lb per MWh;
                                                 MMBtu of heat         or (5.2E-05 lb per
                                                 input).               MMBtu of steam
                                                                       output or 5.5E-04
                                                                       lb per MWh).
12. Fuel cell units designed   a. CO..........  910 ppm by volume on  1.1 lb per MMBtu of   1 hr minimum
 to burn biomass/bio-based                       a dry basis           steam output or       sampling time.
 solids.                                         corrected to 3        1.0E+01 lb per MWh.
                                                 percent oxygen.
                               b. Filterable    2.0E-02 lb per MMBtu  3.0E-02 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    2 dscm per run.
                                                 (2.9E-05 \a\ lb per   2.8E-01 lb per MWh;
                                                 MMBtu of heat         or (5.1E-05 lb per
                                                 input).               MMBtu of steam
                                                                       output or 4.1E-04
                                                                       lb per MWh).
13. Hybrid suspension grate    a. CO (or CEMS)  1,100 ppm by volume   1.4 lb per MMBtu of   1 hr minimum
 boiler designed to burn                         on a dry basis        steam output or 12    sampling time.
 biomass/bio-based solids.                       corrected to 3        lb per MWh; 3-run
                                                 percent oxygen, 3-    average.
                                                 run average; or
                                                 (900 ppm by volume
                                                 on a dry basis
                                                 corrected to 3
                                                 percent oxygen \d\,
                                                 30-day rolling
                                                 average).
                               b. Filterable    2.6E-02 lb per MMBtu  3.3E-02 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    3 dscm per run.
                                                 (4.4E-04 lb per       3.7E-01 lb per MWh;
                                                 MMBtu of heat         or (5.5E-04 lb per
                                                 input).               MMBtu of steam
                                                                       output or 6.2E-03
                                                                       lb per MWh).
14. Units designed to burn     a. HCl.........  4.4E-04 lb per MMBtu  4.8E-04 lb per MMBtu  For M26A: Collect a
 liquid fuel.                                    of heat input.        of steam output or    minimum of 2 dscm
                                                                       6.1E-03 lb per MWh.   per run; for M26,
                                                                                collect a minimum
                                                                                of 240 liters per
                                                                                run.
                               b. Mercury.....  4.8E-07 \a\ lb per    5.3E-07 \a\ lb per    For M29, collect a
                                                 MMBtu of heat input.  MMBtu of steam        minimum of 4 dscm
                                                                       output or 6.7E-06     per run; for M30A
                                                                       \a\ lb per MWh.       or M30B, collect a
                                                                                minimum sample as
                                                                                specified in the
                                                                                method; for ASTM
                                                                                D6784 \b\ collect a
                                                                                minimum of 4 dscm.

15. Units designed to burn     a. CO..........  130 ppm by volume on  0.13 lb per MMBtu of  1 hr minimum
 heavy liquid fuel.                              a dry basis           steam output or 1.4   sampling time.
                                                 corrected to 3        lb per MWh; 3-run
                                                 percent oxygen, 3-    average.
                                                 run average.
                               b. Filterable    1.3E-02 lb per MMBtu  1.5E-02 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    3 dscm per run.
                                                 (7.5E-05 lb per       1.8E-01 lb per MWh;
                                                 MMBtu of heat         or (8.2E-05 lb per
                                                 input).               MMBtu of steam
                                                                       output or 1.1E-03
                                                                       lb per MWh).
16. Units designed to burn     a. CO..........  130 ppm by volume on  0.13 lb per MMBtu of  1 hr minimum
 light liquid fuel.                              a dry basis           steam output or 1.4   sampling time.
                                                 corrected to 3        lb per MWh.
                                                 percent oxygen.
                               b. Filterable    1.1E-03 \a\ lb per    1.2E-03 \a\ lb per    Collect a minimum of
                                PM (or TSM).     MMBtu of heat         MMBtu of steam        3 dscm per run.
                                                 input; or (2.9E-05    output or 1.6E-02
                                                 lb per MMBtu of       \a\ lb per MWh; or
                                                 heat input).          (3.2E-05 lb per
                                                                       MMBtu of steam
                                                                       output or 4.0E-04
                                                                       lb per MWh).
17. Units designed to burn     a. CO..........  130 ppm by volume on  0.13 lb per MMBtu of  1 hr minimum
 liquid fuel that are non-                       a dry basis           steam output or 1.4   sampling time.
 continental units.                              corrected to 3        lb per MWh; 3-run
                                                 percent oxygen, 3-    average.
                                                 run average based
                                                 on stack test.
                               b. Filterable    2.3E-02 lb per MMBtu  2.5E-02 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    4 dscm per run.
                                                 (8.6E-04 lb per       3.2E-01 lb per MWh;
                                                 MMBtu of heat         or (9.4E-04 lb per
                                                 input).               MMBtu of steam
                                                                       output or 1.2E-02
                                                                       lb per MWh).
18. Units designed to burn     a. CO..........  130 ppm by volume on  0.16 lb per MMBtu of  1 hr minimum
 gas 2 (other) gases.                            a dry basis           steam output or 1.0   sampling time.
                                                 corrected to 3        lb per MWh.
                                                 percent oxygen.
                               b. HCl.........  1.7E-03 lb per MMBtu  2.9E-03 lb per MMBtu  For M26A, Collect a
                                                 of heat input.        of steam output or    minimum of 2 dscm
                                                                       1.8E-02 lb per MWh.   per run; for M26,
                                                                                collect a minimum
                                                                                of 240 liters per
                                                                                run.
                               c. Mercury.....  7.9E-06 lb per MMBtu  1.4E-05 lb per MMBtu  For M29, collect a
                                                 of heat input.        of steam output or    minimum of 3 dscm
                                                                       8.3E-05 lb per MWh.   per run; for M30A
                                                                                or M30B, collect a
                                                                                minimum sample as
                                                                                specified in the
                                                                                method; for ASTM
                                                                                D6784 \b\, collect
                                                                                a minimum of 3
                                                                                dscm.
                               d. Filterable    6.7E-03 lb per MMBtu  1.2E-02 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    3 dscm per run.
                                                 (2.1E-04 lb per       7.0E-02 lb per MWh;
                                                 MMBtu of heat         or (3.5E-04 lb per
                                                 input).               MMBtu of steam
                                                                       output or 2.2E-03
                                                                       lb per MWh).
----------------------------------------------------------------------------------------------------------------
\a\ If you are conducting stack tests to demonstrate compliance and your performance tests for this pollutant
  for at least 2 consecutive years show that your emissions are at or below this limit, you can skip testing
  according to Sec.   63.7515 if all of the other provisions of Sec.   63.7515 are met. For all other pollutants
  that do not contain a footnote ``a'', your performance tests for this pollutant for at least 2 consecutive
  years must show that your emissions are at or below 75 percent of this limit in order to qualify for skip
  testing.
\b\ Incorporated by reference, see Sec.   63.14.
\c\ If your affected source is a new or reconstructed affected source that commenced construction or
  reconstruction after June 4, 2010, and before January 31, 2013, you may comply with the emission limits in
  Tables 11, 12 or 13 to this subpart until January 31, 2016. On and after January 31, 2016, you must comply
  with the emission limits in Table 1 to this subpart.
\d\ An owner or operator may request that compliance with the carbon monoxide emission limit be determined using
  carbon dioxide measurements corrected to an equivalent of 3 percent oxygen. The relationship between oxygen
  and carbon dioxide levels for the affected facility shall be established during the initial compliance test.

0
21. Table 2 to subpart DDDDD of part 63 is revised to read as follows:

          Table 2 to Subpart DDDDD of Part 63--Emission Limits for Existing Boilers and Process Heaters
           As Stated in Sec.   63.7500, You Must Comply With the Following Applicable Emission Limits:
                     [Units with heat input capacity of 10 million Btu per hour or greater]
----------------------------------------------------------------------------------------------------------------
                                                                       The emissions must
                                                 The emissions must      not exceed the
  If your boiler or process        For the         not exceed the           following       Using this specified
heater is in this subcategory     following      following emission    alternative output-   sampling volume or
            . . .               pollutants . .     limits, except     based limits, except   test run duration .
                                      .          during startup and    during startup and            . .
                                                   shutdown . . .        shutdown . . .
----------------------------------------------------------------------------------------------------------------
1. Units in all subcategories  a. HCl.........  2.2E-02 lb per MMBtu  2.5E-02 lb per MMBtu  For M26A, Collect a
 designed to burn solid fuel.                    of heat input.        of steam output or    minimum of 1 dscm
                                                                       0.27 lb per MWh.      per run; for M26,
                                                                                collect a minimum
                                                                                of 120 liters per
                                                                                run.
                               b. Mercury.....  5.7E-06 lb per MMBtu  6.4E-06 lb per MMBtu  For M29, collect a
                                                 of heat input.        of steam output or    minimum of 3 dscm
                                                                       7.3E-05 lb per MWh.   per run; for M30A
                                                                                or M30B, collect a
                                                                                minimum sample as
                                                                                specified in the
                                                                                method; for ASTM
                                                                                D6784 \b\ collect a
                                                                                minimum of 3 dscm.
2. Units design to burn coal/  a. Filterable    4.0E-02 lb per MMBtu  4.2E-02 lb per MMBtu  Collect a minimum of
 solid fossil fuel.             PM (or TSM).     of heat input; or     of steam output or    2 dscm per run.
                                                 (5.3E-05 lb per       4.9E-01 lb per MWh;
                                                 MMBtu of heat         or (5.6E-05 lb per
                                                 input).               MMBtu of steam
                                                                       output or 6.5E-04
                                                                       lb per MWh).
3. Pulverized coal boilers     a. CO (or CEMS)  130 ppm by volume on  0.11 lb per MMBtu of  1 hr minimum
 designed to burn coal/solid                     a dry basis           steam output or 1.4   sampling time.
 fossil fuel.                                    corrected to 3        lb per MWh; 3-run
                                                 percent oxygen, 3-    average.
                                                 run average; or
                                                 (320 ppm by volume
                                                 on a dry basis
                                                 corrected to 3
                                                 percent oxygen,\c\
                                                 30-day rolling
                                                 average).
4. Stokers/others designed to  a. CO (or CEMS)  160 ppm by volume on  0.14 lb per MMBtu of  1 hr minimum
 burn coal/solid fossil fuel.                    a dry basis           steam output or 1.7   sampling time.
                                                 corrected to 3        lb per MWh; 3-run
                                                 percent oxygen, 3-    average.
                                                 run average; or
                                                 (340 ppm by volume
                                                 on a dry basis
                                                 corrected to 3
                                                 percent oxygen,\c\
                                                 30-day rolling
                                                 average).
5. Fluidized bed units         a. CO (or CEMS)  130 ppm by volume on  0.12 lb per MMBtu of  1 hr minimum
 designed to burn coal/solid                     a dry basis           steam output or 1.4   sampling time.
 fossil fuel.                                    corrected to 3        lb per MWh; 3-run
                                                 percent oxygen, 3-    average.
                                                 run average; or
                                                 (230 ppm by volume
                                                 on a dry basis
                                                 corrected to 3
                                                 percent oxygen,\c\
                                                 30-day rolling
                                                 average).
6. Fluidized bed units with    a. CO (or CEMS)  140 ppm by volume on  1.3E-01 lb per MMBtu  1 hr minimum
 an integrated heat exchanger                    a dry basis           of steam output or    sampling time.
 designed to burn coal/solid                     corrected to 3        1.5 lb per MWh; 3-
 fossil fuel.                                    percent oxygen, 3-    run average.
                                                 run average; or
                                                 (150 ppm by volume
                                                 on a dry basis
                                                 corrected to 3
                                                 percent oxygen,\c\
                                                 30-day rolling
                                                 average).
7. Stokers/sloped grate/       a. CO (or CEMS)  1,500 ppm by volume   1.4 lb per MMBtu of   1 hr minimum
 others designed to burn wet                     on a dry basis        steam output or 17    sampling time.
 biomass fuel.                                   corrected to 3        lb per MWh; 3-run
                                                 percent oxygen, 3-    average.
                                                 run average; or
                                                 (720 ppm by volume
                                                 on a dry basis
                                                 corrected to 3
                                                 percent oxygen,\c\
                                                 30-day rolling
                                                 average).
                               b. Filterable    3.7E-02 lb per MMBtu  4.3E-02 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    2 dscm per run.
                                                 (2.4E-04 lb per       5.2E-01 lb per MWh;
                                                 MMBtu of heat         or (2.8E-04 lb per
                                                 input).               MMBtu of steam
                                                                       output or 3.4E-04
                                                                       lb per MWh).
8. Stokers/sloped grate/       a. CO..........  460 ppm by volume on  4.2E-01 lb per MMBtu  1 hr minimum
 others designed to burn kiln-                   a dry basis           of steam output or    sampling time.
 dried biomass fuel.                             corrected to 3        5.1 lb per MWh.
                                                 percent oxygen.
                               b. Filterable    3.2E-01 lb per MMBtu  3.7E-01 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    1 dscm per run.
                                                 (4.0E-03 lb per       4.5 lb per MWh; or
                                                 MMBtu of heat         (4.6E-03 lb per
                                                 input).               MMBtu of steam
                                                                       output or 5.6E-02
                                                                       lb per MWh).

9. Fluidized bed units         a. CO (or CEMS)  470 ppm by volume on  4.6E-01 lb per MMBtu  1 hr minimum
 designed to burn biomass/bio-                   a dry basis           of steam output or    sampling time.
 based solid.                                    corrected to 3        5.2 lb per MWh; 3-
                                                 percent oxygen, 3-    run average.
                                                 run average; or
                                                 (310 ppm by volume
                                                 on a dry basis
                                                 corrected to 3
                                                 percent oxygen,\c\
                                                 30-day rolling
                                                 average).
                               b. Filterable    1.1E-01 lb per MMBtu  1.4E-01 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    1 dscm per run.
                                                 (1.2E-03 lb per       1.6 lb per MWh; or
                                                 MMBtu of heat         (1.5E-03 lb per
                                                 input).               MMBtu of steam
                                                                       output or 1.7E-02
                                                                       lb per MWh).
10. Suspension burners         a. CO (or CEMS)  2,400 ppm by volume   1.9 lb per MMBtu of   1 hr minimum
 designed to burn biomass/bio-                   on a dry basis        steam output or 27    sampling time.
 based solid.                                    corrected to 3        lb per MWh; 3-run
                                                 percent oxygen, 3-    average.
                                                 run average; or
                                                 (2,000 ppm by
                                                 volume on a dry
                                                 basis corrected to
                                                 3 percent
                                                 oxygen,\c\ 10-day
                                                 rolling average).
                               b. Filterable    5.1E-02 lb per MMBtu  5.2E-02 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    2 dscm per run.
                                                 (6.5E-03 lb per       7.1E-01 lb per MWh;
                                                 MMBtu of heat         or (6.6E-03 lb per
                                                 input).               MMBtu of steam
                                                                       output or 9.1E-02
                                                                       lb per MWh).
11. Dutch Ovens/Pile burners   a. CO (or CEMS)  770 ppm by volume on  8.4E-01 lb per MMBtu  1 hr minimum
 designed to burn biomass/bio-                   a dry basis           of steam output or    sampling time.
 based solid.                                    corrected to 3        8.4 lb per MWh; 3-
                                                 percent oxygen, 3-    run average.
                                                 run average; or
                                                 (520 ppm by volume
                                                 on a dry basis
                                                 corrected to 3
                                                 percent oxygen,\c\
                                                 10-day rolling
                                                 average).
                               b. Filterable    2.8E-01 lb per MMBtu  3.9E-01 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    1 dscm per run.
                                                 (2.0E-03 lb per       3.9 lb per MWh; or
                                                 MMBtu of heat         (2.8E-03 lb per
                                                 input).               MMBtu of steam
                                                                       output or 2.8E-02
                                                                       lb per MWh).
12. Fuel cell units designed   a. CO..........  1,100 ppm by volume   2.4 lb per MMBtu of   1 hr minimum
 to burn biomass/bio-based                       on a dry basis        steam output or 12    sampling time.
 solid.                                          corrected to 3        lb per MWh.
                                                 percent oxygen.
                               b. Filterable    2.0E-02 lb per MMBtu  5.5E-02 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    2 dscm per run.
                                                 (5.8E-03 lb per       2.8E-01 lb per MWh;
                                                 MMBtu of heat         or (1.6E-02 lb per
                                                 input).               MMBtu of steam
                                                                       output or 8.1E-02
                                                                       lb per MWh).
13. Hybrid suspension grate    a. CO (or CEMS)  3,500 ppm by volume   3.5 lb per MMBtu of   1 hr minimum
 units designed to burn                          on a dry basis        steam output or 39    sampling time.
 biomass/bio-based solid.                        corrected to 3        lb per MWh; 3-run
                                                 percent oxygen, 3-    average.
                                                 run average; or
                                                 (900 ppm by volume
                                                 on a dry basis
                                                 corrected to 3
                                                 percent oxygen,\c\
                                                 30-day rolling
                                                 average).
                               b. Filterable    4.4E-01 lb per MMBtu  5.5E-01 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    1 dscm per run.
                                                 (4.5E-04 lb per       6.2 lb per MWh; or
                                                 MMBtu of heat         (5.7E-04 lb per
                                                 input).               MMBtu of steam
                                                                       output or 6.3E-03
                                                                       lb per MWh).
14. Units designed to burn     a. HCl.........  1.1E-03 lb per MMBtu  1.4E-03 lb per MMBtu  For M26A, collect a
 liquid fuel.                                    of heat input.        of steam output or    minimum of 2 dscm
                                                                       1.6E-02 lb per MWh.   per run; for M26,
                                                                                collect a minimum
                                                                                of 240 liters per
                                                                                run.
                               b. Mercury.....  2.0E-06 \a\ lb per    2.5E-06 \a\ lb per    For M29, collect a
                                                 MMBtu of heat input.  MMBtu of steam        minimum of 3 dscm
                                                                       output or 2.8E-05     per run; for M30A
                                                                       lb per MWh.           or M30B collect a
                                                                                minimum sample as
                                                                                specified in the
                                                                                method, for ASTM
                                                                                D6784, \b\ collect
                                                                                a minimum of 2
                                                                                dscm.

15. Units designed to burn     a. CO..........  130 ppm by volume on  0.13 lb per MMBtu of  1 hr minimum
 heavy liquid fuel.                              a dry basis           steam output or 1.4   sampling time.
                                                 corrected to 3        lb per MWh; 3-run
                                                 percent oxygen, 3-    average.
                                                 run average.
                               b. Filterable    6.2E-02 lb per MMBtu  7.5E-02 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    1 dscm per run.
                                                 (2.0E-04 lb per       8.6E-01 lb per MWh;
                                                 MMBtu of heat         or (2.5E-04 lb per
                                                 input).               MMBtu of steam
                                                                       output or 2.8E-03
                                                                       lb per MWh).
16. Units designed to burn     a. CO..........  130 ppm by volume on  0.13 lb per MMBtu of  1 hr minimum
 light liquid fuel.                              a dry basis           steam output or 1.4   sampling time.
                                                 corrected to 3        lb per MWh.
                                                 percent oxygen.
                               b. Filterable    7.9E-03 \a\ lb per    9.6E-03 \a\ lb per    Collect a minimum of
                                PM (or TSM).     MMBtu of heat         MMBtu of steam        3 dscm per run.
                                                 input; or (6.2E-05    output or 1.1E-01
                                                 lb per MMBtu of       \a\ lb per MWh; or
                                                 heat input).          (7.5E-05 lb per
                                                                       MMBtu of steam
                                                                       output or 8.6E-04
                                                                       lb per MWh).
17. Units designed to burn     a. CO..........  130 ppm by volume on  0.13 lb per MMBtu of  1 hr minimum
 liquid fuel that are non-                       a dry basis           steam output or 1.4   sampling time.
 continental units.                              corrected to 3        lb per MWh; 3-run
                                                 percent oxygen, 3-    average.
                                                 run average based
                                                 on stack test.
                               b. Filterable    2.7E-01 lb per MMBtu  3.3E-01 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input; or     of steam output or    2 dscm per run.
                                                 (8.6E-04 lb per       3.8 lb per MWh; or
                                                 MMBtu of heat         (1.1E-03 lb per
                                                 input).               MMBtu of steam
                                                                       output or 1.2E-02
                                                                       lb per MWh).
18. Units designed to burn     a. CO..........  130 ppm by volume on  0.16 lb per MMBtu of  1 hr minimum
 gas 2 (other) gases.                            a dry basis           steam output or 1.0   sampling time.
                                                 corrected to 3        lb per MWh.
                                                 percent oxygen.
                               b. HCl.........  1.7E-03 lb per MMBtu  2.9E-03 lb per MMBtu  For M26A, collect a
                                                 of heat input.        of steam output or    minimum of 2 dscm
                                                                       1.8E-02 lb per MWh.   per run; for M26,
                                                                                collect a minimum
                                                                                of 240 liters per
                                                                                run.
                               c. Mercury.....  7.9E-06 lb per MMBtu  1.4E-05 lb per MMBtu  For M29, collect a
                                                 of heat input.        of steam output or    minimum of 3 dscm
                                                                       8.3E-05 lb per MWh.   per run; for M30A
                                                                                or M30B, collect a
                                                                                minimum sample as
                                                                                specified in the
                                                                                method; for ASTM
                                                                                D6784,\b\ collect a
                                                                                minimum of 2 dscm.
                               d. Filterable    6.7E-03 lb per MMBtu  1.2E-02 lb per MMBtu  Collect a minimum of
                                PM (or TSM).     of heat input or      of steam output or    3 dscm per run.
                                                 (2.1E-04 lb per       7.0E-02 lb per MWh;
                                                 MMBtu of heat         or (3.5E-04 lb per
                                                 input).               MMBtu of steam
                                                                       output or 2.2E-03
                                                                       lb per MWh).
----------------------------------------------------------------------------------------------------------------
\a\ If you are conducting stack tests to demonstrate compliance and your performance tests for this pollutant
  for at least 2 consecutive years show that your emissions are at or below this limit, you can skip testing
  according to Sec.   63.7515 if all of the other provisions of Sec.   63.7515 are met. For all other pollutants
  that do not contain a footnote a, your performance tests for this pollutant for at least 2 consecutive years
  must show that your emissions are at or below 75 percent of this limit in order to qualify for skip testing.
\b\ Incorporated by reference, see Sec.   63.14.
\c\ An owner or operator may request that compliance with the carbon monoxide emission limit be determined using
  carbon dioxide measurements corrected to an equivalent of 3 percent oxygen. The relationship between oxygen
  and carbon dioxide levels for the affected facility shall be established during the initial compliance test.

0
22. Table 3 to subpart DDDDD of part 63 is amended by revising the
entry for ``4,'' ``5,'' and ``6'' to read as follows:

      Table 3 to Subpart DDDDD of Part 63--Work Practice Standards
    [As stated in Sec.   63.7500, you must comply with the following
                  applicable work practice standards:]
------------------------------------------------------------------------
    If your unit is . . .          You must meet the following . . .
------------------------------------------------------------------------
4. An existing boiler or       Must have a one-time energy assessment
 process heater located at a    performed by a qualified energy
 major source facility, not     assessor. An energy assessment completed
 including limited use units.   on or after January 1, 2008, that meets
                                or is amended to meet the energy
                                assessment requirements in this table,
                                satisfies the energy assessment
                                requirement. A facility that operated
                                under an energy management program
                                developed according to the ENERGY STAR
                                guidelines for energy management or
                                compatible with ISO 50001 for at least
                                one year between January 1, 2008 and the
                                compliance date specified in Sec.
                                63.7495 that includes the affected units
                                also satisfies the energy assessment
                                requirement. The energy assessment must
                                include the following with extent of the
                                evaluation for items a. to e.
                                appropriate for the on-site technical
                                hours listed in Sec.   63.7575:
                               a. A visual inspection of the boiler or
                                process heater system.
                               b. An evaluation of operating
                                characteristics of the boiler or process
                                heater systems, specifications of energy
                                using systems, operating and maintenance
                                procedures, and unusual operating
                                constraints.
                               c. An inventory of major energy use
                                systems consuming energy from affected
                                boilers and process heaters and which
                                are under the control of the boiler/
                                process heater owner/operator.
                               d. A review of available architectural
                                and engineering plans, facility
                                operation and maintenance procedures and
                                logs, and fuel usage.
                               e. A review of the facility's energy
                                management program and provide
                                recommendations for improvements
                                consistent with the definition of energy
                                management program, if identified.
                               f. A list of cost-effective energy
                                conservation measures that are within
                                the facility's control.
                               g. A list of the energy savings potential
                                of the energy conservation measures
                                identified.
                               h. A comprehensive report detailing the
                                ways to improve efficiency, the cost of
                                specific improvements, benefits, and the
                                time frame for recouping those
                                investments.
5. An existing or new boiler   a. You must operate all CMS during
 or process heater subject to   startup.
 emission limits in Table 1
 or 2 or 11 through 13 to
 this subpart during startup.
                               b. For startup of a boiler or process
                                heater, you must use one or a
                                combination of the following clean
                                fuels: Natural gas, synthetic natural
                                gas, propane, other Gas 1 fuels,
                                distillate oil, syngas, ultra-low sulfur
                                diesel, fuel oil-soaked rags, kerosene,
                                hydrogen, paper, cardboard, refinery
                                gas, liquefied petroleum gas, and any
                                fuels meeting the appropriate HCl,
                                mercury and TSM emission standards by
                                fuel analysis.
                               c. You have the option of complying using
                                either of the following work practice
                                standards.
                               (1) If you start firing coal/solid fossil
                                fuel, biomass/bio-based solids, heavy
                                liquid fuel, or gas 2 (other) gases, you
                                must vent emissions to the main stack(s)
                                and engage all of the applicable control
                                devices except limestone injection in
                                fluidized bed combustion (FBC) boilers,
                                dry scrubber, fabric filter, selective
                                non-catalytic reduction (SNCR), and
                                selective catalytic reduction (SCR). You
                                must start your limestone injection in
                                FBC boilers, dry scrubber, fabric
                                filter, SNCR, and SCR systems as
                                expeditiously as possible. Startup ends
                                when steam or heat is supplied for any
                                purpose, OR
                               (2) If you choose to comply using
                                definition (2) of ``startup'' in Sec.
                                63.7575, once you start firing (i.e.,
                                feeding) coal/solid fossil fuel, biomass/
                                bio-based solids, heavy liquid fuel, or
                                gas 2 (other) gases, you must vent
                                emissions to the main stack(s) and
                                engage all of the applicable control
                                devices so as to comply with the
                                emission limits within 4 hours of start
                                of supplying useful thermal energy. You
                                must effect PM control within one hour
                                of first firing coal/solid fossil fuel,
                                biomass/bio-based solids, heavy liquid
                                fuel, or gas 2 (other) gases \a\. You
                                must start all applicable control
                                devices as expeditiously as possible,
                                but, in any case, when necessary to
                                comply with other standards applicable
                                to the source by a permit limit or a
                                rule other than this subpart that
                                require operation of the control
                                devices.
                               d. You must comply with all applicable
                                emission limits at all times except
                                during startup and shutdown periods at
                                which time you must meet this work
                                practice. You must collect monitoring
                                data during periods of startup, as
                                specified in Sec.   63.7535(b). You must
                                keep records during periods of startup.
                                You must provide reports concerning
                                activities and periods of startup, as
                                specified in Sec.   63.7555.
6. An existing or new boiler   You must operate all CMS during shutdown.
 or process heater subject to   While firing coal/solid fossil fuel,
 emission limits in Tables 1    biomass/bio-based solids, heavy liquid
 or 2 or 11 through 13 to       fuel, or gas 2 (other) gases during
 this subpart during shutdown.  shutdown, you must vent emissions to the
                                main stack(s) and operate all applicable
                                control devices, except limestone
                                injection in FBC boilers, dry scrubber,
                                fabric filter, SNCR, and SCR but, in any
                                case, when necessary to comply with
                                other standards applicable to the source
                                that require operation of the control
                                device.
                               If, in addition to the fuel used prior to
                                initiation of shutdown, another fuel
                                must be used to support the shutdown
                                process, that additional fuel must be
                                one or a combination of the following
                                clean fuels: Natural gas, synthetic
                                natural gas, propane, other Gas 1 fuels,
                                distillate oil, syngas, ultra-low sulfur
                                diesel, refinery gas, and liquefied
                                petroleum gas.
                               You must comply with all applicable
                                emissions limits at all times except for
                                startup or shutdown periods conforming
                                with this work practice. You must
                                collect monitoring data during periods
                                of shutdown, as specified in Sec.
                                63.7535(b). You must keep records during
                                periods of shutdown. You must provide
                                reports concerning activities and
                                periods of shutdown, as specified in
                                Sec.   63.7555.
------------------------------------------------------------------------
\a\ The source may request a variance with the PM controls requirement.
  The source must provide evidence that (1) meeting the ``fuel firing +
  1 hour'' requirement violates manufacturer's recommended operation and/
  or safety requirements, and (2) the PM control device is appropriately
  designed and sized to meet the filterable PM emission limit.

0
23. Table 4 to subpart DDDDD of part 63 is revised to read as follows:

  Table 4 to Subpart DDDDD of Part 63--Operating Limits for Boilers and
                             Process Heaters
    [As stated in Sec.   63.7500, you must comply with the applicable
                           operating limits:]
------------------------------------------------------------------------
 When complying with a Table
1, 2, 11, 12, or 13 numerical   You must meet these operating limits . .
  emission limit using . . .                       .
------------------------------------------------------------------------
1. Wet PM scrubber control on  Maintain the 30-day rolling average
 a boiler or process heater     pressure drop and the 30-day rolling
 not using a PM CPMS.           average liquid flow rate at or above the
                                lowest one-hour average pressure drop
                                and the lowest one-hour average liquid
                                flow rate, respectively, measured during
                                the most recent performance test
                                demonstrating compliance with the PM
                                emission limitation according to Sec.
                                63.7530(b) and Table 7 to this subpart.
2. Wet acid gas (HCl)          Maintain the 30-day rolling average
 scrubber control on a boiler   effluent pH at or above the lowest one-
 or process heater not using    hour average pH and the 30-day rolling
 a HCl CEMS.                    average liquid flow rate at or above the
                                lowest one-hour average liquid flow rate
                                measured during the most recent
                                performance test demonstrating
                                compliance with the HCl emission
                                limitation according to Sec.
                                63.7530(b) and Table 7 to this subpart.
3. Fabric filter control on a  a. Maintain opacity to less than or equal
 boiler or process heater not   to 10 percent opacity (daily block
 using a PM CPMS.               average); or
                               b. Install and operate a bag leak
                                detection system according to Sec.
                                63.7525 and operate the fabric filter
                                such that the bag leak detection system
                                alert is not activated more than 5
                                percent of the operating time during
                                each 6-month period.
4. Electrostatic precipitator  a. This option is for boilers and process
 control on a boiler or         heaters that operate dry control systems
 process heater not using a     (i.e., an ESP without a wet scrubber).
 PM CPMS.                       Existing and new boilers and process
                                heaters must maintain opacity to less
                                than or equal to 10 percent opacity
                                (daily block average).
                               b. This option is only for boilers and
                                process heaters not subject to PM CPMS
                                or continuous compliance with an opacity
                                limit (i.e., dry ESP). Maintain the 30-
                                day rolling average total secondary
                                electric power input of the
                                electrostatic precipitator at or above
                                the operating limits established during
                                the performance test according to Sec.
                                63.7530(b) and Table 7 to this subpart.
5. Dry scrubber or carbon      Maintain the minimum sorbent or carbon
 injection control on a         injection rate as defined in Sec.
 boiler or process heater not   63.7575 of this subpart.
 using a mercury CEMS.
6. Any other add-on air        This option is for boilers and process
 pollution control type on a    heaters that operate dry control
 boiler or process heater not   systems. Existing and new boilers and
 using a PM CPMS.               process heaters must maintain opacity to
                                less than or equal to 10 percent opacity
                                (daily block average).
7. Fuel analysis.............  Maintain the fuel type or fuel mixture
                                such that the applicable emission rates
                                calculated according to Sec.
                                63.7530(c)(1), (2) and/or (3) is less
                                than the applicable emission limits.
8. Performance testing.......  For boilers and process heaters that
                                demonstrate compliance with a
                                performance test, maintain the operating
                                load of each unit such that it does not
                                exceed 110 percent of the highest hourly
                                average operating load recorded during
                                the most recent performance test.
9. Oxygen analyzer system....  For boilers and process heaters subject
                                to a CO emission limit that demonstrate
                                compliance with an O2 analyzer system as
                                specified in Sec.   63.7525(a), maintain
                                the 30-day rolling average oxygen
                                content at or above the lowest hourly
                                average oxygen concentration measured
                                during the most recent CO performance
                                test, as specified in Table 8. This
                                requirement does not apply to units that
                                install an oxygen trim system since
                                these units will set the trim system to
                                the level specified in Sec.
                                63.7525(a).
10. SO2CEMS..................  For boilers or process heaters subject to
                                an HCl emission limit that demonstrate
                                compliance with an SO2CEMS, maintain the
                                30-day rolling average SO2emission rate
                                at or below the highest hourly average
                                SO2concentration measured during the
                                most recent HCl performance test, as
                                specified in Table 8.
------------------------------------------------------------------------

0
24. Table 5 to subpart DDDDD of part 63 is amended by revising the
heading to the third column and adding the footnote ``a'' to read as
follows:

  Table 5 to Subpart DDDDD of Part 63--Performance Testing Requirements
    [As stated in Sec.   63.7520, you must comply with the following
 requirements for performance testing for existing, new or reconstructed
                           affected sources:]
------------------------------------------------------------------------
  To conduct a performance test
 for the following pollutant . .    You must . . .         Using, as
                .                                      appropriate . . .
------------------------------------------------------------------------

                                * * * * *
------------------------------------------------------------------------
\a\ Incorporated by reference, see Sec.   63.14.

0
25. Table 6 to subpart DDDDD of part 63 is revised to read as follows:

                         Table 6 to Subpart DDDDD of Part 63--Fuel Analysis Requirements
   [As stated in Sec.   63.7521, you must comply with the following requirements for fuel analysis testing for
 existing, new or reconstructed affected sources. However, equivalent methods (as defined in Sec.   63.7575) may
          be used in lieu of the prescribed methods at the discretion of the source owner or operator:]
----------------------------------------------------------------------------------------------------------------
To conduct a fuel  analysis for the
     following  pollutant . . .             You must . . .                          Using . . .
----------------------------------------------------------------------------------------------------------------
1. Mercury.........................  a. Collect fuel samples....  Procedure in Sec.   63.7521(c) or ASTM D5192
                                                                   \a\, or ASTM D7430 \a\, or ASTM D6883 \a\, or
                                                                   ASTM D2234/D2234M \a\ (for coal) or EPA 1631
                                                                   or EPA 1631E or ASTM D6323 \a\ (for solid),
                                                                   or EPA 821-R-01-013 (for liquid or solid), or
                                                                   ASTM D4177 \a\ (for liquid), or ASTM D4057
                                                                   \a\ (for liquid), or equivalent.
                                     b. Composite fuel samples..  Procedure in Sec.   63.7521(d) or equivalent.
                                     c. Prepare composited fuel   EPA SW-846-3050B \a\ (for solid samples), ASTM
                                      samples.                     D2013/D2013M \a\ (for coal), ASTM D5198 \a\
                                                                   (for biomass), or EPA 3050 \a\ (for solid
                                                                   fuel), or EPA 821-R-01-013 \a\ (for liquid or
                                                                   solid), or equivalent.
                                     d. Determine heat content    ASTM D5865 \a\ (for coal) or ASTM E711 \a\
                                      of the fuel type.            (for biomass), or ASTM D5864 \a\ for liquids
                                                                   and other solids, or ASTM D240 \a\ or
                                                                   equivalent.
                                     e. Determine moisture        ASTM D3173 \a\, ASTM E871 \a\, or ASTM D5864
                                      content of the fuel type.    \a\, or ASTM D240, or ASTM D95 \a\ (for
                                                                   liquid fuels), or ASTM D4006 \a\ (for liquid
                                                                   fuels), or ASTM D4177 \a\ (for liquid fuels)
                                                                   or ASTM D4057 \a\ (for liquid fuels), or
                                                                   equivalent.
                                     f. Measure mercury           ASTM D6722 \a\ (for coal), EPA SW-846-7471B
                                      concentration in fuel        \a\ (for solid samples), or EPA SW-846-7470A
                                      sample.                      \a\ (for liquid samples), or equivalent.
                                     g. Convert concentration     Equation 8 in Sec.   63.7530.
                                      into units of pounds of
                                      mercury per MMBtu of heat