D = Mass of fluorinated GHG destroyed annually (metric tons).
FD = Mass of fluorinated GHG fed into the destruction
device annually (metric tons).
DE = Destruction efficiency of the destruction device (fraction).

Sec.  98.414  Monitoring and QA/QC requirements.

    (a) The mass of fluorinated GHGs or nitrous oxide coming out of the
production process shall be measured using flowmeters, weigh scales, or
a combination of volumetric and density measurements with an accuracy
and precision of one percent of full scale or better.
    (b) The mass of any used fluorinated GHGs or used nitrous oxide
added back into the production process upstream of the output
measurement in paragraph (a) of this section shall be measured using
flowmeters, weigh scales, or a combination of volumetric and density
measurements with an accuracy and precision of one percent of full
scale or better. If the mass in paragraph (a) of this section is
measured by weighing containers that include returned heels as well as
newly produced fluorinated GHGs, the returned heels shall be considered
used fluorinated GHGs for purposes of this paragraph (b) of this
section and Sec.  98.413(b).
    (c) The mass of fluorinated GHGs or nitrous oxide fed into the
transformation process shall be measured using flowmeters, weigh
scales, or a combination of volumetric and density measurements with an
accuracy and precision of one percent of full scale or better.
    (d) The fraction of the fluorinated GHGs or nitrous oxide fed into
the transformation process that is actually transformed shall be
estimated considering yield calculations or quantities of unreacted
fluorinated GHGs or nitrous oxide permanently removed from the process
and recovered, destroyed, or emitted.
    (e) The mass of fluorinated GHG or nitrous oxide sent to another
facility for transformation shall be measured using flowmeters, weigh
scales, or a combination of volumetric and density measurements with an
accuracy and precision of one percent of full scale or better.

    (f) The mass of fluorinated GHG sent to another facility for
destruction shall be measured using flowmeters, weigh scales, or a
combination of volumetric and density measurements with an accuracy and
precision of one percent of full scale or better. If the measured mass
includes more than trace concentrations of materials other than the
fluorinated GHG, the concentration of the fluorinated GHG shall be
estimated considering current or previous representative concentration
measurements and other relevant process information. This concentration
(mass fraction) shall be multiplied by the mass measurement to obtain
the mass of the fluorinated GHG sent to another facility for
destruction.
    (g) You must estimate the share of the mass of fluorinated GHGs in
paragraph (f) of this section that is comprised of fluorinated GHGs
that are not included in the mass produced in Sec.  98.413(a) because
they are removed from the production process as by-products or other
wastes.
    (h) The mass of fluorinated GHGs fed into the destruction device
shall be measured using flowmeters, weigh scales, or a combination of
volumetric and density measurements with an accuracy and precision of
one percent of full scale or better. If the measured mass includes more
than trace concentrations of materials other than the fluorinated GHG
being destroyed, the concentrations of fluorinated GHG being destroyed
shall be estimated considering current or previous representative
concentration measurements and other relevant process information. This
concentration (mass fraction) shall be multiplied by the mass
measurement to obtain the mass of the fluorinated GHG destroyed.
    (i) Very small quantities of fluorinated GHGs that are difficult to
measure because they are entrained in other media such as destroyed
filters and destroyed sample containers are exempt from paragraphs (f)
and (h) of this section.
    (j) You must estimate the share of the mass of fluorinated GHGs in
paragraph (h) of this section that is comprised of fluorinated GHGs
that are not included in the mass produced in Sec.  98.413(a) because
they are removed from the production process as by-products or other
wastes.
    (k) For purposes of Equation OO-4 of this subpart, the destruction
efficiency can be equated to the destruction efficiency determined
during a previous performance test of the destruction device or, if no
performance test has been done, the destruction efficiency provided by
the manufacturer of the destruction device.
    (l) In their estimates of the mass of fluorinated GHGs destroyed,
fluorinated GHG production facilities that destroy fluorinated GHGs
shall account for any temporary reductions in the destruction
efficiency that result from any startups, shutdowns, or malfunctions of
the destruction device, including departures from the operating
conditions defined in state or local permitting requirements and/or
oxidizer manufacturer specifications.
    (m) Calibrate all flow meters, weigh scales, and combinations of
volumetric and density measures that are used to measure or calculate
quantities that are to be reported under this subpart prior to the
first year for which GHG emissions are reported under this part.
Calibrations performed prior to the effective date of this rule satisfy
this requirement. Recalibrate all flow meters, weigh scales, and
combinations of volumetric and density measures at the minimum
frequency specified by the manufacturer. Use NIST-traceable standards
and suitable methods published by a consensus standards organization
(e.g., ASTM, ASME, ISO, or others).

Sec.  98.415  Procedures for estimating missing data.

    (a) A complete record of all measured parameters used in the GHG
emissions calculations is required. Therefore, whenever a quality-
assured value of a required parameter is unavailable (e.g., if a meter
malfunctions), a substitute data value for the missing parameter shall
be used in the calculations, according to paragraph (b) of this
section.
    (b) For each missing value of the mass produced, fed into the
production process (for used material being reclaimed), fed into the
transformation process, fed into destruction devices, sent to another
facility for transformation, or sent to another facility for
destruction, the substitute value of that parameter shall be a
secondary mass measurement where such a measurement is available. For
example, if the mass produced is usually measured with a flowmeter at
the inlet to the day tank and that flowmeter fails to meet an accuracy
or precision test, malfunctions, or is rendered inoperable, then the
mass produced may be estimated by calculating the change in volume in
the day tank and multiplying it by the density of the product. Where a
secondary mass measurement is not available, the substitute value of
the parameter shall be an estimate based on a related parameter. For
example, if a flowmeter measuring the mass fed into a destruction
device is rendered inoperable, then the mass fed into the destruction
device may be estimated using the production rate and the previously
observed relationship between the production rate and the mass flow
rate into the destruction device.

Sec.  98.416  Data reporting requirements.

    In addition to the information required by Sec.  98.3(c), each
annual report must contain the following information:
    (a) Each fluorinated GHG or nitrous oxide production facility shall
report the following information:
    (1) Mass in metric tons of each fluorinated GHG or nitrous oxide
produced at that facility by process, except for amounts that are
captured solely to be shipped off site for destruction.
    (2) Mass in metric tons of each fluorinated GHG or nitrous oxide
transformed at that facility, by process.
    (3) Mass in metric tons of each fluorinated GHG destroyed at that
facility, except fluorinated GHGs not included in the calculation of
mass produced in Sec.  98.413(a) because they are removed from the
production process as by-products or other wastes. Quantities to be
reported under this paragraph (a)(3) of this section could include, for
example, quantities that are returned to the facility for reclamation
but are found to be irretrievably contaminated and are therefore
destroyed.
    (4) Mass in metric tons of each fluorinated GHG that is destroyed
at that facility except GHGs not included in the calculation of mass
produced in Sec.  98.413(a) because they are removed from the
production process as byproducts or other wastes.
    (5) Total mass in metric tons of each fluorinated GHG or nitrous
oxide sent to another facility for transformation.
    (6) Total mass in metric tons of each fluorinated GHG sent to
another facility for destruction, except fluorinated GHGs that are not
included in the mass produced in Sec.  98.413(a) because they are
removed from the production process as by-products or other wastes.
Quantities to be reported under this paragraph (a)(6) could include,
for example, fluorinated GHGs that are returned to the facility for
reclamation but are found to be irretrievably contaminated and are
therefore sent to another facility for destruction.
    (7) Total mass in metric tons of each fluorinated GHG that is sent
to another facility for destruction and that is not included in the
mass produced in Sec.  98.413(a) because it is removed from

the production process as a byproduct or other waste.
    (8) Total mass in metric tons of each reactant fed into the F-GHG
or nitrous oxide production process, by process.
    (9) Total mass in metric tons of the reactants, by-products, and
other wastes permanently removed from the F-GHG or nitrous oxide
production process, by process.
    (10) For transformation processes that do not produce an F-GHG or
nitrous oxide, mass in metric tons of any fluorinated GHG or nitrous
oxide fed into the transformation process, by process.
    (11) Mass in metric tons of each fluorinated GHG fed into the
destruction device.
    (12) Mass in metric tons of each fluorinated GHG or nitrous oxide
that is measured coming out of the production process, by process.
    (13) Mass in metric tons of each used fluorinated GHGs or nitrous
oxide added back into the production process (e.g., for reclamation),
including returned heels in containers that are weighed to measure the
mass in Sec.  98.414(a), by process.
    (14) Names and addresses of facilities to which any nitrous oxide
or fluorinated GHGs were sent for transformation, and the quantities
(metric tons) of nitrous oxide and of each fluorinated GHG that were
sent to each for transformation.
    (15) Names and addresses of facilities to which any fluorinated
GHGs were sent for destruction, and the quantities (metric tons) of
nitrous oxide and of each fluorinated GHG that were sent to each for
destruction.
    (16) Where missing data have been estimated pursuant to Sec.
98.415, the reason the data were missing, the length of time the data
were missing, the method used to estimate the missing data, and the
estimates of those data.
    (b) A fluorinated GHG production facility or importer that destroys
fluorinated GHGs shall submit a one-time report containing the
following information:
    (1) Destruction efficiency (DE) of each destruction unit.
    (2) Methods used to determine the destruction efficiency.
    (3) Methods used to record the mass of fluorinated GHG destroyed.
    (4) Chemical identity of the fluorinated GHG(s) used in the
performance test conducted to determine DE.
    (5) Name of all applicable federal or state regulations that may
apply to the destruction process.
    (6) If any process changes affect unit destruction efficiency or
the methods used to record mass of fluorinated GHG destroyed, then a
revised report must be submitted to reflect the changes. The revised
report must be submitted to EPA within 60 days of the change.
    (c) A bulk importer of fluorinated GHGs or nitrous oxide shall
submit an annual report that summarizes their imports at the corporate
level, except for shipments including less than 250 metric tons of
CO2e, transshipments, and heels that meet the conditions set
forth at Sec.  98.417(e). The report shall contain the following
information for each import:
    (1) Total mass in metric tons of nitrous oxide and each fluorinated
GHG imported in bulk.
    (2) Total mass in metric tons of nitrous oxide and each fluorinated
GHG imported in bulk and sold or transferred to persons other than the
importer for use in processes resulting in the transformation or
destruction of the chemical.
    (3) Date on which the fluorinated GHGs or nitrous oxide were
imported.
    (4) Port of entry through which the fluorinated GHGs or nitrous
oxide passed.
    (5) Country from which the imported fluorinated GHGs or nitrous
oxide were imported.
    (6) Commodity code of the fluorinated GHGs or nitrous oxide
shipped.
    (7) Importer number for the shipment.
    (8) Total mass in metric tons of each fluorinated GHG destroyed by
the importer.
    (9) If applicable, the names and addresses of the persons and
facilities to which the nitrous oxide or fluorinated GHGs were sold or
transferred for transformation, and the quantities (metric tons) of
nitrous oxide and of each fluorinated GHG that were sold or transferred
to each facility for transformation.
    (10) If applicable, the names and addresses of the persons and
facilities to which the nitrous oxide or fluorinated GHGs were sold or
transferred for destruction, and the quantities (metric tons) of
nitrous oxide and of each fluorinated GHG that were sold or transferred
to each facility for destruction.
    (d) A bulk exporter of fluorinated GHGs or nitrous oxide shall
submit an annual report that summarizes their exports at the corporate
level, except for shipments including less than 250 metric tons of
CO2e, transshipments, and heels. The report shall contain
the following information for each export:
    (1) Total mass in metric tons of nitrous oxide and each fluorinated
GHG exported in bulk.
    (2) Names and addresses of the exporter and the recipient of the
exports.
    (3) Exporter's Employee Identification Number.
    (4) Commodity code of the fluorinated GHGs and nitrous oxide
shipped.
    (5) Date on which, and the port from which, fluorinated GHGs and
nitrous oxide were exported from the United States or its territories.
    (6) Country to which the fluorinated GHGs or nitrous oxide were
exported.
    (e) By April 1, 2011, a fluorinated GHG production facility shall
submit a one-time report describing the following information:
    (1) The method(s) by which the producer in practice measures the
mass of fluorinated GHGs produced, including the instrumentation used
(Coriolis flowmeter, other flowmeter, weigh scale, etc.) and its
accuracy and precision.
    (2) The method(s) by which the producer in practice estimates the
mass of fluorinated GHGs fed into the transformation process, including
the instrumentation used (Coriolis flowmeter, other flowmeter, weigh
scale, etc.) and its accuracy and precision.
    (3) The method(s) by which the producer in practice estimates the
fraction of fluorinated GHGs fed into the transformation process that
is actually transformed, and the estimated precision and accuracy of
this estimate.
    (4) The method(s) by which the producer in practice estimates the
masses of fluorinated GHGs fed into the destruction device, including
the method(s) used to estimate the concentration of the fluorinated
GHGs in the destroyed material, and the estimated precision and
accuracy of this estimate.
    (5) The estimated percent efficiency of each production process for
the fluorinated GHG produced.

Sec.  98.417  Records that must be retained.

    (a) In addition to the data required by Sec.  98.3(g), the
fluorinated GHG production facility shall retain the following records:
    (1) Dated records of the data used to estimate the data reported
under Sec.  98.416.
    (2) Records documenting the initial and periodic calibration of the
gas chromatographs, weigh scales, flowmeters, and volumetric and
density measures used to measure the quantities reported under this
subpart, including the industry standards or manufacturer directions
used for calibration pursuant to Sec.  98.414(j) and (k).
    (b) In addition to the data required by paragraph (a) of this
section, the

fluorinated GHG production facility that destroys fluorinated GHGs
shall keep records of test reports and other information documenting
the facility's one-time destruction efficiency report and annual
destruction device outlet reports in Sec.  98.416(b) and (e).
    (c) In addition to the data required by Sec.  98.3(g), the bulk
importer shall retain the following records substantiating each of the
imports that they report:
    (1) A copy of the bill of lading for the import.
    (2) The invoice for the import.
    (3) The U.S. Customs entry form.
    (d) In addition to the data required by Sec.  98.3(g), the bulk
exporter shall retain the following records substantiating each of the
exports that they report:
    (1) A copy of the bill of lading for the export and
    (2) The invoice for the import.
    (e) Every person who imports a container with a heel that is not
reported under Sec.  98.416(c) shall keep records of the amount brought
into the United States that document that the residual amount in each
shipment is less than 10 percent of the volume of the container and
will:
    (1) Remain in the container and be included in a future shipment.
    (2) Be recovered and transformed.
    (3) Be recovered and destroyed.
    (4) Be recovered and included in a future shipment.

Sec.  98.418  Definitions.

    All terms used in this subpart have the same meaning given in the
Clean Air Act and subpart A of this part.

Subpart PP--Suppliers of Carbon Dioxide

Sec.  98.420  Definition of the source category.

    (a) The carbon dioxide (CO2) supplier source category
consists of the following:
    (1) Facilities with production process units that capture a
CO2 stream for purposes of supplying CO2 for
commercial applications or that capture and maintain custody of a
CO2 stream in order to sequester or otherwise inject it
underground. Capture refers to the initial separation and removal of
CO2 from a manufacturing process or any other process.
    (2) Facilities with CO2 production wells that extract or
produce a CO2 stream for purposes of supplying
CO2 for commercial applications or that extract and maintain
custody of a CO2 stream in order to sequester or otherwise
inject it underground.
    (3) Importers or exporters of bulk CO2.
    (b) This source category is focused on upstream supply. It does not
cover:
    (1) Storage of CO2 above ground or in geologic
formations.
    (2) Use of CO2 in enhanced oil and gas recovery.
    (3) Transportation or distribution of CO2.
    (4) Purification, compression, or processing of CO2.
    (5) On-site use of CO2 captured on site.
    (c) This source category does not include CO2 imported
or exported in equipment, such as fire extinguishers.

Sec.  98.421  Reporting threshold.

    Any supplier of CO2 who meets the requirements of Sec.
98.2(a)(4) of subpart A of this part must report the mass of
CO2 captured, extracted, imported, or exported.

Sec.  98.422  GHGs to report.

    (a) Mass of CO2 captured from each production process
unit.
    (b) Mass of CO2 extracted from each CO2
production wells.
    (c) Mass of CO2 imported.
    (d) Mass of CO2 exported.

Sec.  98.423  Calculating CO2 supply.

    (a) Calculate the annual mass of CO2 captured,
extracted, imported, or exported through each flow meter in accordance
with the procedures specified in either paragraph (a)(1) or (a)(2) of
this section. If multiple flow meters are used, you shall calculate the
annual mass of CO2 for all flow meters according to the
procedures specified in paragraph (a)(3) of this section.
    (1) For each mass flow meter, you shall calculate quarterly the
mass of CO2 in a CO2 stream in metric tons, prior
to any subsequent purification, processing, or compressing, by
multiplying the mass flow by the composition data, according to
Equation PP-1 of this section. Mass flow and composition data
measurements shall be made in accordance with Sec.  98.424 of this
subpart.
[GRAPHIC] [TIFF OMITTED] TR30OC09.175

Where:

CO2,u = Annual mass of CO2 (metric tons)
through flow meter u.
CCO2,p,u = Quarterly CO2
concentration measurement in flow for flow meter u in quarter p (wt.
%CO2).
Qp,u = Quarterly mass flow rate measurement for flow
meter u in quarter p (metric tons).
p = Quarter of the year.
u = Flow meter.

    (2) For each volumetric flow meter, you shall calculate quarterly
the mass of CO2 in a CO2 stream in metric tons,
prior to any subsequent purification, processing, or compressing, by
multiplying the volumetric flow by the concentration and density data,
according to Equation PP-2 of this section. Volumetric flow,
concentration and density data measurements shall be made in accordance
with Sec.  98.424 of this section.
[GRAPHIC] [TIFF OMITTED] TR30OC09.176

Where:

CO2,u = Annual mass of CO2 (metric tons)
through flow meter u.
CCO2,p = Quarterly CO2
concentration measurement in flow for flow meter u in quarter p (wt.
% CO2).
Qp = Quarterly volumetric flow rate measurement for flow
meter u in quarter p (standard cubic meters).
Dp = Quarterly CO2 stream density measurement
for flow meter u in quarter p (metric tons per standard cubic
meter).
p = Quarter of the year.
u = Flow meter.

    (3) To aggregate data, sum the mass of CO2 for all flow
meters in accordance with Equation PP-3 of this section.

[GRAPHIC] [TIFF OMITTED] TR30OC09.177

Where:

CO2 = Annual mass of CO2 (metric tons) through
all flow meters.
CO2,u = Annual mass of CO2 (metric tons)
through flow meter u.
u = Flow meter.

    (b) Importers or exporters that import or export CO2 in
containers shall calculate the total mass of CO2 imported or
exported in metric tons, prior to any subsequent purification,
processing, or compressing, based on summing the mass in each
CO2 container using weigh bills, scales, or load cells
according to Equation PP-4 of this section.
[GRAPHIC] [TIFF OMITTED] TR30OC09.178

Where:

CO2 = Annual mass of CO2 (metric tons).
Q = Annual mass in all CO2 containers imported or
exported during the reporting year (metric tons).

Sec.  98.424  Monitoring and QA/QC requirements.

    (a) Determination of quantity.
    (1) Reporters that have a mass flow meter or volumetric flow meter
installed to measure the flow of a CO2 stream shall base
calculations in Sec.  98.423 of this subpart on the installed mass flow
or volumetric flow meters.
    (2) Reporters that do not have a mass flow meter or volumetric flow
meter installed to measure the flow of the CO2 stream shall
base calculations in Sec.  98.423 of this subpart on the flow of gas
transferred off site using a mass flow meter or a volumetric flow meter
located at the point of off-site transfer.
    (3) Importers or exporters that import or export CO2 in
containers shall measure the mass in each CO2 container
using weigh bills, scales, or load cells and sum the mass in all
containers imported or exported during the reporting year.
    (4) All flow meters, scales, and load cells used to measure
quantities that are reported in Sec.  98.423 of this subpart shall be
operated and calibrated according to the following procedure:
    (i) You shall use an appropriate standard method published by a
consensus-based standards organization if such a method exists.
Consensus-based standards organizations include, but are not limited
to, the following: ASTM International, the American National Standards
Institute (ANSI), the American Gas Association (AGA), the American
Society of Mechanical Engineers (ASME), the American Petroleum
Institute (API), and the North American Energy Standards Board (NAESB).
    (ii) Where no appropriate standard method developed by a consensus-
based standards organization exists, you shall follow industry standard
practices.
    (iii) You must ensure that any flow meter calibrations performed
are NIST traceable.
    (5) Reporters using Equation PP-2 of this subpart shall measure the
density of the CO2 stream on a quarterly basis in order to
calculate the mass of the CO2 stream according to the
following procedure:
    (i) You shall use an appropriate standard method published by a
consensus-based standards organization to measure density if such a
method exists. Consensus-based standards organizations include, but are
not limited to, the following: ASTM International, the American
National Standards Institute (ANSI), the American Gas Association
(AGA), the American Society of Mechanical Engineers (ASME), the
American Petroleum Institute (API), and the North American Energy
Standards Board (NAESB).
    (ii) Where no appropriate standard method developed by a consensus-
based standards organization exists, you shall follow industry standard
practices.
    (b) Determination of concentration.
    (1) Reporters using Equation PP-1 or PP-2 of this subpart shall
sample the CO2 stream on a quarterly basis to determine the
composition of the CO2 stream.
    (2) Methods to measure the composition of the CO2 stream
must conform to applicable chemical analytical standards. Acceptable
methods include U.S. Food and Drug Administration food-grade
specifications for CO2 (see 21 CFR 184.1250) and ASTM
standard E1747-95 (Reapproved 2005) Standard Guide for Purity of Carbon
Dioxide Used in Supercritical Fluid Applications (incorporated by
reference, see Sec.  98.7 of subpart A of this part).

Sec.  98.425  Procedures for estimating missing data.

    (a) Whenever the quality assurance procedures in Sec.  98.424(a) of
this subpart cannot be followed to measure quarterly mass flow or
volumetric flow of CO2, the most appropriate of the
following missing data procedures shall be followed:
    (1) A quarterly CO2 mass flow or volumetric flow value
that is missing may be substituted with a quarterly value measured
during another quarter of the current reporting year.
    (2) A quarterly CO2 mass flow or volumetric flow value
that is missing may be substituted with a quarterly value measured
during the same quarter from the past reporting year.
    (3) If a mass or volumetric flow meter is installed to measure the
CO2 stream, you may substitute data from a mass or
volumetric flow meter measuring the CO2 stream transferred
for any period during which the installed meter is inoperable.
    (4) The mass or volumetric flow used for purposes of product
tracking and billing according to the reporter's established procedures
may be substituted for any period during which measurement equipment is
inoperable.
    (b) Whenever the quality assurance procedures in Sec.  98.424(b) of
this subpart cannot be followed to determine concentration of the
CO2 stream, the most appropriate of the following missing
data procudures shall be followed:
    (1) A quarterly concentration value that is missing may be
substituted with a quarterly value measured during another quarter of
the current reporting year.
    (2) A quarterly concentration value that is missing may be
substituted with a quarterly value measured during the same quarter
from the previous reporting year.
    (3) The concentration used for purposes of product tracking and
billing according to the reporter's established procedures may be
substituted for any quarterly value.
    (c) Missing data on density of the CO2 stream shall be
substituted with quarterly or annual average values from the previous
calendar year.

Sec.  98.426  Data reporting requirements.

    In addition to the information required by Sec.  98.3(c) of subpart
A of this part, the annual report shall contain the following
information, as applicable:
    (a) If you use Equation PP-1 of this subpart, report the following
information for each mass flow meter:
    (1) Annual mass in metric tons of CO2.
    (2) Quarterly mass flow of CO2.
    (3) Quarterly concentration of the CO2 stream.
    (4) The standard used to measure CO2 concentration.
    (b) If you use Equation PP-2 of this subpart, report the following
information for each volumetric flow meter:
    (1) Annual mass in metric tons of CO2.
    (2) Quarterly volumetric flow of CO2.
    (3) Quarterly concentration of the CO2 stream.
    (4) Quarterly density of the CO2 stream.

    (5) The method used to measure density.
    (6) The standard used to measure CO2 concentration.
    (c) If you use Equation PP-3 of this subpart, report the annual
CO2 mass in metric tons from all flow meters.
    (d) If you use Equation PP-4 of this subpart, report at the
corporate level the annual mass of CO2 in metric tons in all
CO2 containers that are imported or exported.
    (e) Each reporter shall report the following information:
    (1) The type of equipment used to measure the total flow of the
CO2 stream or the total mass in CO2 containers.
    (2) The standard used to operate and calibrate the equipment
reported in (e)(1) of this section.
    (3) The number of days in the reporting year for which substitute
data procedures were used for the following purpose:
    (i) To measure quantity.
    (ii) To measure concentration.
    (iii) To measure density.
    (f) Report the aggregated annual quantity of CO2 in
metric tons that is transferred to each of the following end use
applications, if known:
    (1) Food and beverage.
    (2) Industrial and municipal water/wastewater treatment.
    (3) Metal fabrication, including welding and cutting.
    (4) Greenhouse uses for plant growth.
    (5) Fumigants (e.g., grain storage) and herbicides.
    (6) Pulp and paper.
    (7) Cleaning and solvent use.
    (8) Fire fighting.
    (9) Transportation and storage of explosives.
    (10) Enhanced oil and natural gas recovery.
    (11) Long-term storage (sequestration).
    (12) Research and development.
    (13) Other.
    (g) Each production process unit that captures a CO2
stream for purposes of supplying CO2 for commercial
applications or in order to sequester or otherwise inject it
underground when custody of the CO2 is maintained shall
report the percentage of that stream, if any, that is biomass-based
during the reporting year.

Sec.  98.427  Records that must be retained.

    In addition to the records required by Sec.  98.3(g) of subpart A
of this part, you must retain the records specified in paragraphs (a)
through (c) of this section, as applicable.
    (a) The owner or operator of a facility containing production
process units must retain quarterly records of captured or transferred
CO2 streams and composition.
    (b) The owner or operator of a CO2 production well
facility must maintain quarterly records of the mass flow or volumetric
flow of the extracted or transferred CO2 stream and
concentration and density if volumetric flow meters are used.
    (c) Importers or exporters of CO2 must retain annual
records of the mass flow, volumetric flow, and mass of CO2
imported or exported.

Sec.  98.428  Definitions.

    All terms used in this subpart have the same meaning given in the
Clean Air Act and subpart A of this part.

PART 1033--[AMENDED]

0
21. The authority citation for part 1033 continues to read as follows:

    Authority:  42 U.S.C. 7401-7671q.

Subpart C--[Amended]

0
22. Section 1033.205 is amended by revising paragraph (d)(8) to read as
follows:

Sec.  1033.205  Applying for a certificate of conformity.

* * * * *
    (d) * * *
    (8)(i) All test data you obtained for each test engine or
locomotive. As described in Sec.  1033.235, we may allow you to
demonstrate compliance based on results from previous emission tests,
development tests, or other testing information. Include data for NOx,
PM, HC, CO, and CO2.
    (ii) Report measured CO2, N2O, and
CH4 as described in Sec.  1033.235. Small manufacturers/
remanufacturers may omit reporting N2O and CH4.
* * * * *

0
23. Section 1033.235 is amended by adding paragraph (i) to read as
follows:

Sec.  1033.235  Emission testing required for certification.

* * * * *
    (i) Measure CO2 with each test. Measure CH4
with each low-hour certification test using the procedures specified in
40 CFR part 1065 starting in the 2012 model year. Also measure
N2O with each low-hour certification test using the
procedures specified in 40 CFR part 1065 for any engine family that
depends on NOx aftertreatment to meet emission standards. Small
manufacturers/remanufacturers may omit measurement of N2O
and CH4. Use the same units and modal calculations as for
your other results to report a single weighted value for
CO2, N2O, and CH4. Round the final
values as follows:
    (1) Round CO2 to the nearest 1 g/bhp-hr.
    (2) Round N2O to the nearest 0.001 g/bhp-hr.
    (3) Round CH4 to the nearest 0.001g/bhp-hr.

Subpart F--[Amended]

0
24. Section 1033.501 is amended by revising paragraph (a) introductory
text to read as follows:

Sec.  1033.501  General provisions.

    (a) Except as specified in this subpart, use the equipment and
procedures for compression-ignition engines in 40 CFR part 1065 to
determine whether your locomotives meet the duty-cycle emission
standards in Sec.  1033.101. Use the applicable duty cycles specified
in this subpart. Measure emissions of all the pollutants we regulate in
Sec.  1033.101 plus CO2. Measure N2O, and
CH4 as described in Sec.  1033.235. The general test
procedure is the procedure specified in 40 CFR part 1065 for steady-
state discrete-mode cycles. However, if you use the optional ramped
modal cycle in Sec.  1033.520, follow the procedures for ramped modal
testing in 40 CFR part 1065. The following exceptions from the 1065
procedures apply:
* * * * *

Subpart J--[Amended]

0
25. Section 1033.905 is amended by adding the abbreviations
CH4 and N2O in alphanumeric order to read as
follows:

Sec.  1033.905  Symbols, acronyms, and abbreviations.

* * * * *
* * * * *
    CH4 methane.
* * * * *
    N2O nitrous oxide.
* * * * *

PART 1039--[AMENDED]

0
26. The authority citation for part 1039 continues to read as follows:

    Authority:  42 U.S.C. 7401-7671q.

Subpart C--[Amended]

0
27. Section 1039.205 is amended by revising paragraph (r) to read as
follows:

Sec.  1039.205  What must I include in my application?

* * * * *
    (r) Report test results as follows:
    (1) Report all test results involving measurement of pollutants for
which emission standards apply. Include test results from invalid tests
or from any other tests, whether or not they were conducted according
to the test

[[Continued on page 56509]]

]

[[pp. 56509-56519]] Mandatory Reporting of Greenhouse Gases

[[Continued from page 56508]]

procedures of subpart F of this part. We may ask you to send other
information to confirm that your tests were valid under the
requirements of this part and 40 CFR part 1065.
    (2) Report measured CO2, N2O, and
CH4 as described in Sec.  1039.235. Small-volume engine
manufacturers may omit reporting N2O and CH4.
* * * * *

0
28. Section 1039.235 is amended by adding paragraph (g) to read as
follows:

Sec.  1039.235  What emission testing must I perform for my application
for a certificate of conformity?

* * * * *
    (g) Measure CO2 and CH4 with each low-hour
certification test using the procedures specified in 40 CFR part 1065
in the 2011 and 2012 model years, respectively. Also measure
N2O with each low-hour certification test using the
procedures specified in 40 CFR part 1065 starting in the 2013 model
year for any engine family that depends on NOx aftertreatment to meet
emission standards. Small-volume engine manufacturers may omit
measurement of N2O and CH4. These measurements
are not required for NTE testing. Use the same units and modal
calculations as for your other results to report a single weighted
value for each constituent. Round the final values as follows:
    (1) Round CO2 to the nearest 1 g/kW-hr.
    (2) Round N2O to the nearest 0.001 g/kW-hr.
    (3) Round CH4 to the nearest 0.001g/kW-hr.

Subpart F--[Amended]

0
29. Section 1039.501 is amended by revising paragraph (a) to read as
follows:

Sec.  1039.501  How do I run a valid emission test?

    (a) Use the equipment and procedures for compression-ignition
engines in 40 CFR part 1065 to determine whether engines meet the duty-
cycle emission standards in subpart B of this part. Measure the
emissions of all the exhaust constituents subject to emissions
standards as specified in 40 CFR part 1065. Measure CO2,
N2O, and CH4 as described in Sec.  1039.235. Use
the applicable duty cycles specified in Sec. Sec.  1039.505 and
1039.510.
* * * * *

Subpart I--[Amended]

0
30. Section 1039.805 is amended by adding the abbreviations
CH4 and N2O in alphanumeric order to read as
follows:

Sec.  1039.805  What symbols, acronyms, and abbreviations does this
part use?

* * * * *
* * * * *
    CH4 methane.
* * * * *
    N2O nitrous oxide.
* * * * *

PART 1042--[AMENDED]

0
31. The authority citation for part 1042 continues to read as follows:

    Authority:  42 U.S.C. 7401-7671q.

Subpart C--[Amended]

0
32. Section 1042.205 is amended by revising paragraph (r) to read as
follows:

Sec.  1042.205  Application requirements.

* * * * *
    (r) Report test results as follows:
    (1) Report all test results involving measurement of pollutants for
which emission standards apply. Include test results from invalid tests
or from any other tests, whether or not they were conducted according
to the test procedures of subpart F of this part. We may ask you to
send other information to confirm that your tests were valid under the
requirements of this part and 40 CFR part 1065.
    (2) Report measured CO2, N2O, and
CH4 as described in Sec.  1042.235. Small-volume engine
manufacturers may omit reporting N2O and CH4.
* * * * *

0
33. Section 1042.235 is amended by adding paragraph (g) to read as
follows:

Sec.  1042.235  Emission testing required for a certificate of
conformity.

* * * * *
    (g) Measure CO2 with each low-hour certification test
using the procedures specified in 40 CFR part 1065 starting in the 2011
model year. Also measure CH4 from Category 1 and Category 2
engines with each low-hour certification test using the procedures
specified in 40 CFR part 1065 starting in the 2012 model year. Measure
N2O from Category 1 and Category 2 engines with each low-
hour certification test using the procedures specified in 40 CFR part
1065 for any engine family that depends on NOx aftertreatment to meet
emission standards. Small-volume engine manufacturers may omit
measurement of N2O and CH4. These measurements
are not required for NTE testing. Use the same units and modal
calculations as for your other results to report a single weighted
value for each constituent. Round the final values as follows:
    (1) Round CO2 to the nearest 1 g/kW-hr.
    (2) Round N2O to the nearest 0.001 g/kW-hr.
    (3) Round CH4 to the nearest 0.001 g/kW-hr.

Subpart F--[Amended]

0
34. Section 1042.501 is amended by revising paragraph (a) to read as
follows:

Sec.  1042.501  How do I run a valid emission test?

    (a) Use the equipment and procedures for compression-ignition
engines in 40 CFR part 1065 to determine whether Category 1 and
Category 2 engines meet the duty-cycle emission standards in Sec.
1042.101(a). Measure the emissions of all exhaust constituents subject
to emissions standards as specified in 40 CFR part 1065. Measure
CO2, N2O, and CH4 as described in
Sec.  1042.235. Use the applicable duty cycles specified in Sec.
1042.505.
* * * * *

Subpart J--[Amended]

0
35. Section 1042.905 is amended by adding the abbreviations
CH4 and N2O in alphanumeric order to read as
follows:

Sec.  1042.905  Symbols, acronyms, and abbreviations.

* * * * *
* * * * *
    CH4 methane.
* * * * *
    N2O nitrous oxide.
* * * * *

PART 1045--[AMENDED]

0
36. The authority citation for part 1045 continues to read as follows:

    Authority:  42 U.S.C. 7401-7671q.

Subpart C--[Amended]

0
37. Section 1045.205 is amended by revising paragraph (q) to read as
follows:

Sec.  1045.205  What must I include in my application?

* * * * *
    (q) Report test results as follows:
    (1) Report all test results involving measurement of pollutants for
which emission standards apply. Include test results from invalid tests
or from any other tests, whether or not they were conducted according
to the test procedures of subpart F of this part. We may ask you to
send other information to confirm that your tests were valid under the
requirements of this part and 40 CFR parts 1060 and 1065.

    (2) Report measured CO2, N2O, and
CH4 as described in Sec.  1045.235. Small-volume engine
manufacturers may omit reporting N2O and CH4.
* * * * *

0
38. Section 1045.235 is amended by adding paragraph (g) to read as
follows:

Sec.  1045.235  What emission testing must I perform for my application
for a certificate of conformity?

* * * * *
    (g) Measure CO2 and CH4 with each low-hour
certification test using the procedures specified in 40 CFR part 1065
starting in the 2011 and 2012 model years, respectively. Also measure
N2O with each low-hour certification test using the
procedures specified in 40 CFR part 1065 starting in the 2013 model
year for any engine family that depends on NOX
aftertreatment to meet emission standards. Small-volume engine
manufacturers may omit measurement of N2O and
CH4. These measurements are not required for NTE testing.
Use the same units and modal calculations as for your other results to
report a single weighted value for each constituent. Round the final
values as follows:
    (1) Round CO2 to the nearest 1 g/kW-hr.
    (2) Round N2O to the nearest 0.001 g/kW-hr.
    (3) Round CH4 to the nearest 0.001 g/kW-hr.

Subpart F--[Amended]

0
39. Section 1045.501 is amended by revising paragraph (b) to read as
follows:

Sec.  1045.501  How do I run a valid emission test?

* * * * *
    (b) General requirements. Use the equipment and procedures for
spark-ignition engines in 40 CFR part 1065 to determine whether engines
meet the duty-cycle emission standards in Sec. Sec.  1045.103 and
1045.105. Measure the emissions of all exhaust constituents subject to
emissions standards as specified in 40 CFR part 1065. Measure
CO2, N2O, and CH4 as described in
Sec.  1045.235. Use the applicable duty cycles specified in Sec.
1045.505. Section 1045.515 describes the supplemental procedures for
evaluating whether engines meet the not-to-exceed emission standards in
Sec.  1045.107.
* * * * *

PART 1048--[AMENDED]

0
40. The authority citation for part 1048 continues to read as follows:

    Authority:  42 U.S.C. 7401-7671q.

Subpart C--[Amended]

0
41. Section 1048.205 is amended by revising paragraph (s) to read as
follows:

Sec.  1048.205  What must I include in my application?

* * * * *
    (s) Report test results as follows:
    (1) Report all test results involving measurement of pollutants for
which emission standards apply. Include test results from invalid tests
or from any other tests, whether or not they were conducted according
to the test procedures of subpart F of this part. We may ask you to
send other information to confirm that your tests were valid under the
requirements of this part and 40 CFR part 1065.
    (2) Report measured CO2, N2O, and
CH4 as described in Sec.  1048.235. Small-volume engine
manufacturers may omit reporting N2O and CH4.
* * * * *

0
42. Section 1048.235 is amended by adding paragraph (g) to read as
follows:

Sec.  1048.235  What emission testing must I perform for my application
for a certificate of conformity?

* * * * *
    (g) Measure CO2 and CH4 with each low-hour
certification test using the procedures specified in 40 CFR part 1065
starting in the 2011 and 2012 model years, respectively. Also measure
N2O with each low-hour certification test using the
procedures specified in 40 CFR part 1065 starting in the 2013 model
year for any engine family that depends on NOx aftertreatment to meet
emission standards. Small-volume engine manufacturers may omit
measurement of N2O and CH4. These measurements
are not required for measurements using field-testing procedures. Use
the same units and modal calculations as for your other results to
report a single weighted value for each constituent. Round the final
values as follows:
    (1) Round CO2 to the nearest 1 g/kW-hr.
    (2) Round N2O to the nearest 0.001 g/kW-hr.
    (3) Round CH4 to the nearest 0.001g/kW-hr.

Subpart F--[Amended]

0
43. Section 1048.501 is amended by revising paragraph (a) to read as
follows:

Sec.  1048.501  How do I run a valid emission test?

    (a) Use the equipment and procedures for spark-ignition engines in
40 CFR part 1065 to determine whether engines meet the duty-cycle
emission standards in Sec.  1048.101(a) and (b). Measure the emissions
of all the pollutants we regulate in Sec.  1048.101 using the sampling
procedures specified in 40 CFR part 1065. Measure CO2,
N2O, and CH4 as described in Sec.  1048.235. Use
the applicable duty cycles specified in Sec. Sec.  1048.505 and
1048.510.
* * * * *

Subpart I--[Amended]

0
44. Section 1048.805 is amended by adding the abbreviations
CH4 and N2O in alphanumeric order to read as
follows:

Sec.  1048.805  What symbols, acronyms, and abbreviations does this
part use?

* * * * *
* * * * *
    CH4 methane.
* * * * *
    N2O nitrous oxide.
* * * * *

PART 1051--[AMENDED]

0
45. The authority citation for part 1051 continues to read as follows:

    Authority:  42 U.S.C. 7401-7671q.

Subpart C--[Amended]

0
46. Section 1051.205 is amended by revising paragraph (p) to read as
follows:

Sec.  1051.205  What must I include in my application?

* * * * *
    (p) Report test results as follows:
    (1) Report all test results involving measurement of pollutants for
which emission standards apply. Include test results from invalid tests
or from any other tests, whether or not they were conducted according
to the test procedures of subpart F of this part. We may ask you to
send other information to confirm that your tests were valid under the
requirements of this part and 40 CFR parts 86 and 1065.
    (2) Report measured CO2, N2O, and
CH4 as described in Sec.  1051.235. Small-volume
manufacturers may omit reporting N2O and CH4.
* * * * *

0
47. Section 1051.235 is amended by adding paragraph (i) to read as
follows:

Sec.  1051.235  What emission testing must I perform for my application
for a certificate of conformity?

* * * * *
    (i) Measure CO2 and CH4 with each low-hour
certification test using the procedures specified in 40 CFR part 1065
starting in the 2011 and 2012

model years, respectively. Also measure N2O with each low-
hour certification test using the analytical equipment and procedures
specified in 40 CFR part 1065 starting in the 2013 model year for any
engine family that depends on NOx aftertreatment to meet emission
standards. Small-volume manufacturers may omit measurement of
N2O and CH4; other manufacturers may provide
appropriate data and/or information and omit measurement of
N2O and CH4 as described in 40 CFR 1065.5. Use
the same units and modal calculations as for your other results to
report a single weighted value for each constituent. Round the final
values as follows:
    (1) Round CO2 to the nearest 1 g/kW-hr or 1 g/km, as
appropriate.
    (2) Round N2O to the nearest 0.001 g/kW-hr or 0.001 g/
km, as appropriate.
    (3) Round CH4 to the nearest 0.001 g/kW-hr or 0.001 g/
km, as appropriate.

Subpart F--[Amended]

0
48. Section 1051.501 is amended by revising paragraphs (a) and (b) to
read as follows:

Sec.  1051.501  What procedures must I use to test my vehicles or
engines?

* * * * *
    (a) Snowmobiles. For snowmobiles, use the equipment and procedures
for spark-ignition engines in 40 CFR part 1065 to determine whether
your snowmobiles meet the duty-cycle emission standards in Sec.
1051.103. Measure the emissions of all the pollutants we regulate in
Sec.  1051.103. Measure CO2, N2O, and
CH4 as described in Sec.  1051.235. Use the duty cycle
specified in Sec.  1051.505.
    (b) Motorcycles and ATVs. For motorcycles and ATVs, use the
equipment, procedures, and duty cycle in 40 CFR part 86, subpart F, to
determine whether your vehicles meet the exhaust emission standards in
Sec.  1051.105 or Sec.  1051.107. Measure the emissions of all the
pollutants we regulate in Sec.  1051.105 or Sec.  1051.107. Measure
CO2, N2O, and CH4 as described in
Sec.  1051.235. If we allow you to certify ATVs based on engine
testing, use the equipment, procedures, and duty cycle described or
referenced in the section that allows engine testing. For motorcycles
with engine displacement at or below 169 cc and all ATVs, use the
driving schedule in paragraph (c) of appendix I to 40 CFR part 86. For
all other motorcycles, use the driving schedule in paragraph (b) of
Appendix I to part 86. With respect to vehicle-speed governors, test
motorcycles and ATVs in their ungoverned configuration, unless we
approve in advance testing in a governed configuration. We will only
approve testing in a governed configuration if you can show that the
governor is permanently installed on all production vehicles and is
unlikely to be removed in use. With respect to engine-speed governors,
test motorcycles and ATVs in their governed configuration. Run the test
engine, with all emission-control systems operating, long enough to
stabilize emission levels; you may consider emission levels stable
without measurement if you accumulate 12 hours of operation.
* * * * *

Subpart I--[Amended]

0
49. Section 1051.805 is amended by adding the abbreviations
CH4 and N2O in alphanumeric order to read as
follows:

Sec.  1051.805  What symbols, acronyms, and abbreviations does this
part use?

* * * * *
* * * * *
    CH4 methane.
* * * * *
    N2O nitrous oxide.
* * * * *

PART 1054--[AMENDED]

0
50. The authority citation for part 1054 continues to read as follows:

    Authority:  42 U.S.C. 7401-7671q.

Subpart C--[Amended]

0
51. Section 1054.205 is amended by revising paragraph (p) to read as
follows:

Sec.  1054.205  What must I include in my application?

* * * * *
    (p) Report test results as follows:
    (1) Report all test results involving measurement of pollutants for
which emission standards apply. Include test results from invalid tests
or from any other tests, whether or not they were conducted according
to the test procedures of subpart F of this part. We may ask you to
send other information to confirm that your tests were valid under the
requirements of this part and 40 CFR parts 1060 and 1065.
    (2) Report measured CO2, N2O, and
CH4 as described in Sec.  1054.235. Small-volume engine
manufacturers may omit reporting N2O and CH4.
* * * * *

0
52. Section 1054.235 is amended by adding paragraph (g) to read as
follows:

Sec.  1054.235  What exhaust emission testing must I perform for my
application for a certificate of conformity?

* * * * *
    (g) Measure CO2 and CH4 with each low-hour
certification test using the procedures specified in 40 CFR part 1065
starting in the 2011 and 2012 model years, respectively. Also measure
N2O with each low-hour certification test using the
procedures specified in 40 CFR part 1065 starting in the 2013 model
year for any engine family that depends on NOx aftertreatment to meet
emission standards. Small-volume engine manufacturers may omit
measurement of N2O and CH4. Use the same units
and modal calculations as for your other results to report a single
weighted value for each constituent. Round the final values as follows:
    (1) Round CO2 to the nearest 1 g/kW-hr.
    (2) Round N2O to the nearest 0.001 g/kW-hr.
    (3) Round CH4 to the nearest 0.001 g/kW-hr.

Subpart F--[Amended]

0
53. Section 1054.501 is amended by revising paragraph (b)(1) to read as
follows:

Sec.  1054.501  How do I run a valid emission test?

* * * * *
    (b) * * *
    (1) Measure the emissions of all exhaust constituents subject to
emissions standards as specified in Sec.  1054.505 and 40 CFR part
1065. Measure CO2, N2O, and CH4 as
described in Sec.  1054.235. See Sec.  1054.650 for special provisions
that apply for variable-speed engines (including engines shipped
without governors).
* * * * *

PART 1065--[AMENDED]

0
54. The authority citation for part 1065 continues to read as follows:

    Authority:  42 U.S.C. 7401-7671q.

Subpart A--[Amended]

0
55. Section 1065.5 is amended by revising paragraph (a)(3) to read as
follows:

Sec.  1065.5  Overview of this part 1065 and its relationship to the
standard-setting part.

    (a) * * *
    (3) Which exhaust constituents do I need to measure? Measure all
exhaust constituents that are subject to emission standards, any other
exhaust constituents needed for calculating emission rates, and any
additional

exhaust constituents as specified in the standard-setting part.
Alternatively, you may omit the measurement of N2O and
CH4 for an engine, provided it is not subject to an
N2O or CH4 emission standard. If you omit the
measurement of N2O and CH4, you must provide
other information and/or data that will give us a reasonable basis for
estimating the engine's emission rates.
* * * * *

Subpart C--[Amended]

0
56. The center heading ``NOx Measurements'' preceding Sec.
1065.270 is revised to read as follows:

NOX and N2O Measurements

0
57. A new Sec.  1065.275 is added under the center heading
``NOx and N2O Measurements'' to read as follows:

Sec.  1065.275  N2O measurement devices.

    (a) General component requirements. We recommend that you use an
analyzer that meets the specifications in Table 1 of Sec.  1065.205.
Note that your system must meet the linearity verification in Sec.
1065.307.
    (b) Instrument types. You may use any of the following analyzers to
measure N2O:
    (1) Nondispersive infra-red (NDIR) analyzer. You may use an NDIR
analyzer that has compensation algorithms that are functions of other
gaseous measurements and the engine's known or assumed fuel properties.
The target value for any compensation algorithm is 0.0% (that is, no
bias high and no bias low), regardless of the uncompensated signal's
bias.
    (2) Fourier transform infra-red (FTIR) analyzer. You may use an
FTIR analyzer that has compensation algorithms that are functions of
other gaseous measurements and the engine's known or assumed fuel
properties. The target value for any compensation algorithm is 0.0%
(that is, no bias high and no bias low), regardless of the
uncompensated signal's bias. Use appropriate analytical procedures for
interpretation of infrared spectra. For example, EPA Test Method 320 is
considered a valid method for spectral interpretation (see http://
www.epa.gov/ttn/emc/methods/method320.html).
    (3) Photoacoustic analyzer. You may use a photoacoustic analyzer
that has compensation algorithms that are functions of other gaseous
measurements. The target value for any compensation algorithm is 0.0%
(that is, no bias high and no bias low), regardless of the
uncompensated signal's bias. Use an optical wheel configuration that
gives analytical priority to measurement of the least stable components
in the sample. Select a sample integration time of at least 5 seconds.
Take into account sample chamber and sample line volumes when
determining flush times for your instrument.
    (4) Gas chromatograph analyzer. You may use a gas chromatograph
with an electron-capture detector (GC-ECD) to measure N2O
concentrations of diluted exhaust for batch sampling.
    (i) You may use a packed or porous layer open tubular (PLOT) column
phase of suitable polarity and length to achieve adequate resolution of
the N2O peak for analysis. Examples of acceptable columns
are a PLOT column consisting of bonded polystyrene-divinylbenzene or a
Porapack Q packed column. Take the column temperature profile and
carrier gas selection into consideration when setting up your method to
achieve adequate N2O peak resolution.
    (ii) Use good engineering judgment to zero your instrument and
correct for drift. You do not need to follow the specific procedures in
Sec.  1065.530 and Sec.  1065.550(b) that would otherwise apply. For
example, you may perform a span gas measurement before and after sample
analysis without zeroing. Use the average area counts of the pre-span
and post-span measurements to generate a response factor (area counts/
span gas concentration), which you then multiply by the area counts
from your sample to generate the sample concentration.
    (c) Interference validation. Perform interference validation for
NDIR, FTIR, and photoacoustic analyzers using the procedures of Sec.
1065.375. Interference validation is not required for GC-ECD. Certain
interference gases can positively interfere with NDIR, FTIR, and
photoacoustic analyzers by causing a response similar to
N2O. When running the interference verification for these
analyzers, use interference gases as follows:
    (1) The interference gases for NDIR analyzers are CO,
CO2, H2O, CH4 and SO2. Note
that interference species, with the exception of H2O, are
dependent on the N2O infrared absorption band chosen by the
instrument manufacturer and should be determined dently for each
analyzer.
    (2) Use good engineering judgment to determine interference gases
for FTIR. Note that interference species, with the exception of
H2O, are dependent on the N2O infrared absorption
band chosen by the instrument manufacturer and should be determined
independently for each analyzer.
    (3) The interference gases for photoacoustic analyzers are CO,
CO2, and H2O.

Subpart D--[Amended]

0
58. Section 1065.303 is revised to read as follows:

Sec.  1065.303  Summary of required calibration and verifications

    The following table summarizes the required and recommended
calibrations and verifications described in this subpart and indicates
when these have to be performed:

     Table 1 of Sec.   1065.303-Summary of Required Calibration and
                              Verifications
------------------------------------------------------------------------
 Type of calibration or verification         Minimum frequency \a\
------------------------------------------------------------------------
Sec.   1065.305: Accuracy,             Accuracy: Not required, but
 repeatability and noise.               recommended for initial
                                        installation.
                                       Repeatability: Not required, but
                                        recommended for initial
                                        installation.
                                       Noise: Not required, but
                                        recommended for initial
                                        installation.
Sec.   1065.307: Linearity...........  Speed: Upon initial installation,
                                        within 370 days before testing
                                        and after major maintenance.
                                       Torque: Upon initial
                                        installation, within 370 days
                                        before testing and after major
                                        maintenance.
                                       Electrical power: Upon initial
                                        installation, within 370 days
                                        before testing and after major
                                        maintenance.
                                       Clean gas and diluted exhaust
                                        flows: Upon initial
                                        installation, within 370 days
                                        before testing and after major
                                        maintenance, unless flow is
                                        verified by propane check or by
                                        carbon or oxygen balance.

                                       Raw exhaust flow: Upon initial
                                        installation, within 185 days
                                        before testing and after major
                                        maintenance, unless flow is
                                        verified by propane check or by
                                        carbon or oxygen balance.
                                       Gas analyzers: Upon initial
                                        installation, within 35 days
                                        before testing and after major
                                        maintenance.
                                       FTIR and photoacoustic analyzers:
                                        Upon initial installation,
                                        within 370 days before testing
                                        and after major maintenance.
                                       GC-ECD: Upon initial installation
                                        and after major maintenance.
                                       PM balance: Upon initial
                                        installation, within 370 days
                                        before testing and after major
                                        maintenance.
                                       Stand-alone pressure and
                                        temperature: Upon initial
                                        installation, within 370 days
                                        before testing and after major
                                        maintenance.
Sec.   1065.308: Continuous gas        Upon initial installation or
 analyzer system response and           after system modification that
 updating-recording verification--for   would effect response.
 gas analyzers not continuously
 compensated for other gas species.
Sec.   1065.309: Continuous gas        Upon initial installation or
 analyzer system-response and           after system modification that
 updating-recording verification--for   would effect response.
 gas analyzers continuously
 compensated for other gas species.
Sec.   1065.310: Torque..............  Upon initial installation and
                                        after major maintenance.
Sec.   1065.315: Pressure,             Upon initial installation and
 temperature, dewpoint.                 after major maintenance.
Sec.   1065.320: Fuel flow...........  Upon initial installation and
                                        after major maintenance.
Sec.   1065.325: Intake flow.........  Upon initial installation and
                                        after major maintenance.
Sec.   1065.330: Exhaust flow........  Upon initial installation and
                                        after major maintenance.
Sec.   1065.340: Diluted exhaust flow  Upon initial installation and
 (CVS).                                 after major maintenance.
Sec.   1065.341: CVS and batch         Upon initial installation, within
 sampler verification \b\.              35 days before testing, and
                                        after major maintenance.
Sec.   1065.345: Vacuum leak.........  Before each laboratory test
                                        according to subpart F of this
                                        part and before each field test
                                        according to subpart J of this
                                        part.
Sec.   1065.350: CO2 NDIR H2O          Upon initial installation and
 interference.                          after major maintenance.
Sec.   1065.355: CO NDIR CO2 and H2O   Upon initial installation and
 interference.                          after major maintenance.
Sec.   1065.360: FID calibration, THC  Calibrate all FID analyzers: upon
 FID optimization, and THC FID          initial installation and after
 verification..                         major maintenance.
                                       Optimize and determine CH4
                                        response for THC FID analyzers:
                                         upon initial installation and
                                          after major maintenance.
                                         Verify CH4 response for THC FID
                                          analyzers: upon initial
                                          installation, within 185 days
                                          before testing, and after
                                          major maintenance.
Sec.   1065.362: Raw exhaust FID O2    For all FID analyzers: upon
 interference.                          initial installation, and after
                                        major maintenance.
                                       For THC FID analyzers: upon
                                        initial installation, after
                                        major maintenance, and after FID
                                        optimization according to Sec.
                                        1065.360.
Sec.   1065.365: Nonmethane cutter     Upon initial installation, within
 penetration.                           185 days before testing, and
                                        after major maintenance.
Sec.   1065.370: CLD CO2 and H2O       Upon initial installation and
 quench.                                after major maintenance.
Sec.   1065.372: NDUV HC and H2O       Upon initial installation and
 interference.                          after major maintenance.
Sec.   1065.375: N2O analyzer          Upon initial installation and
 interference.                          after major maintenance.
Sec.   1065.376: Chiller NO2           Upon initial installation and
 penetration.                           after major maintenance.
Sec.   1065.378: NO2-to-NO converter   Upon initial installation, within
 conversion.                            35 days before testing, and
                                        after major maintenance.
Sec.   1065.390: PM balance and        Independent verification: upon
 weighing.                              initial installation, within 370
                                        days before testing, and after
                                        major maintenance.
                                       Zero, span, and reference sample
                                        verifications: within 12 hours
                                        of weighing, and after major
                                        maintenance.
Sec.   1065.395: Inertial PM balance   Independent verification: upon
 and weighing.                          initial installation, within 370
                                        days before testing, and after
                                        major maintenance.
                                       Other verifications: upon initial
                                        installation and after major
                                        maintenance.
------------------------------------------------------------------------
\a\ Perform calibrations and verifications more frequently, according to
  measurement system manufacturer instructions and good engineering
  judgment.
\b\ The CVS verification described in Sec.   1065.341 is not required
  for systems that agree within  2% based on a chemical
  balance of carbon or oxygen of the intake air, fuel, and diluted
  exhaust.

0
59. Section 1065.307 is amended by revising paragraph (c)(6) to read as
follows:

Sec.  1065.307  Linearity verification.

* * * * *
    (c) * * *
    (6) For all measured quantities, use instrument manufacturer
recommendations and good engineering judgment to select reference
values, yrefi, that cover a range of values that you expect
would prevent extrapolation beyond these values during emission
testing. We recommend selecting a zero reference signal as one of the
reference values of the linearity verification. For stand-alone
pressure and temperature linearity verifications and for GC-ECD
linearity verifications, we recommend at least three reference values.
For all other linearity verifications select at least ten reference
values.
* * * * *

0
60. Section 1065.365 is amended by revising paragraphs (d), (e), and
(f) to read as follows:

Sec.  1065.365  Nonmethane cutter penetration fractions.

* * * * *
    (d) Procedure for a FID calibrated with the NMC. The method
described in this paragraph (d) is recommended over the procedures
specified in paragraphs (e) and (f) of this section. If your FID
arrangement is such that a FID is always calibrated to measure
CH4 with the NMC, then span that FID with the NMC using a
CH4 span gas, set the product of that FID's CH4
response factor and CH4 penetration fraction,
RFPFCH4[NMC-FID], equal to 1.0 for all emission
calculations, and determine its combined ethane
(C2H6) response factor and penetration fraction,
RFPFC2H6[NMC-FID] as follows:
    (1) Select CH4 and C2H6 analytical
gas mixtures and ensure that both mixtures meet the specifications of
Sec.  1065.750. Select a CH4 concentration that you would
use for spanning the FID during emission testing and select a
C2H6 concentration that is typical of the peak
NMHC concentration expected at the hydrocarbon standard or equal to the
THC analyzer's span value.
    (2) Start, operate, and optimize the nonmethane cutter according to
the manufacturer's instructions, including any temperature
optimization.
    (3) Confirm that the FID analyzer meets all the specifications of
Sec.  1065.360.
    (4) Start and operate the FID analyzer according to the
manufacturer's instructions.
    (5) Zero and span the FID with the nonmethane cutter as you would
during emission testing. Span the FID through the cutter by using
CH4 span gas.
    (6) Introduce the C2H6 analytical gas mixture
upstream of the nonmethane cutter. Use good engineering judgment to
address the effect of hydrocarbon contamination if your point of
introduction is vastly different from the point of zero/span gas
introduction.
    (7) Allow time for the analyzer response to stabilize.
Stabilization time may include time to purge the nonmethane cutter and
to account for the analyzer's response.
    (8) While the analyzer measures a stable concentration, record 30
seconds of sampled data. Calculate the arithmetic mean of these data
points.
    (9) Divide the mean C2H6 concentration by the
reference concentration of C2H6, converted to a
C1 basis. The result is the C2H6
combined response factor and penetration fraction,
RFPFC2H6[NMC-FID]. Use this combined response factor and
penetration fraction and the product of the CH4 response
factor and CH4 penetration fraction,
RFPFCH4[NMC-FID], set to 1.0 in emission calculations
according to Sec.  1065.660(b)(2)(i), Sec.  1065.660(c)(1)(i), or Sec.
1065.665, as applicable.
    (e) Procedure for a FID calibrated with propane, bypassing the NMC.
If you use a single FID for THC and CH4 determination with
an NMC that is calibrated with propane, C3H8, by
bypassing the NMC, determine its penetration fractions,
PFC2H6[NMC-FID] and PFCH4[NMC-FID], as follows:
    (1) Select CH4 and C2H6 analytical
gas mixtures and ensure that both mixtures meet the specifications of
Sec.  1065.750. Select a CH4 concentration that you would
use for spanning the FID during emission testing and select a
C2H6 concentration that is typical of the peak
NMHC concentration expected at the hydrocarbon standard or equal to the
THC analyzer's span value.
    (2) Start and operate the nonmethane cutter according to the
manufacturer's instructions, including any temperature optimization.
    (3) Confirm that the FID analyzer meets all the specifications of
Sec.  1065.360.
    (4) Start and operate the FID analyzer according to the
manufacturer's instructions.
    (5) Zero and span the FID as you would during emission testing.
Span the FID by bypassing the cutter and by using
C3H8 span gas.
    (6) Introduce the C2H6 analytical gas mixture
upstream of the nonmethane cutter. Use good engineering judgment to
address the effect of hydrocarbon contamination if your point of
introduction is vastly different from the point of zero/span gas
introduction.
    (7) Allow time for the analyzer response to stabilize.
Stabilization time may include time to purge the nonmethane cutter and
to account for the analyzer's response.
    (8) While the analyzer measures a stable concentration, record 30
seconds of sampled data. Calculate the arithmetic mean of these data
points.
    (9) Reroute the flow path to bypass the nonmethane cutter,
introduce the C2H6 analytical gas mixture, and
repeat the steps in paragraph (e)(7) through (e)(8) of this section.
    (10) Divide the mean C2H6 concentration
measured through the nonmethane cutter by the mean
C2H6 concentration measured after bypassing the
nonmethane cutter. The result is the C2H6
penetration fraction, PFC2H6[NMC-FID]. Use this penetration
fraction according to Sec.  1065.660(b)(2)(ii), Sec.
1065.660(c)(1)(ii), or Sec.  1065.665, as applicable.
    (11) Repeat the steps in paragraphs (e)(6) through (e)(10) of this
section, but with the CH4 analytical gas mixture instead of
C2H6. The result will be the CH4
penetration fraction, PFCH4[NMC-FID]. Use this penetration
fraction according to Sec.  1065.660(b)(2)(ii), Sec.
1065.660(c)(1)(ii), or Sec.  1065.665, as applicable.
    (f) Procedure for a FID calibrated with methane, bypassing the NMC.
If you use a FID with an NMC that is calibrated with methane,
CH4, by bypassing the NMC, determine its combined ethane
(C2H6) response factor and penetration fraction,
RFPFC2H6[NMC-FID], as well as its CH4 penetration
fraction, PFCH4[NMC-FID], as follows:
    (1) Select CH4 and C2H6 analytical
gas mixtures and ensure that both mixtures meet the specifications of
Sec.  1065.750. Select a CH4 concentration that you would
use for spanning the FID during emission testing and select a
C2H6 concentration that is typical of the peak
NMHC concentration expected at the hydrocarbon standard or equal to the
THC analyzer's span value.
    (2) Start and operate the nonmethane cutter according to the
manufacturer's instructions, including any temperature optimization.
    (3) Confirm that the FID analyzer meets all the specifications of
Sec.  1065.360.
    (4) Start and operate the FID analyzer according to the
manufacturer's instructions.
    (5) Zero and span the FID as you would during emission testing.
Span the FID by bypassing the cutter and by using CH4 span
gas. Note that you must span the FID on a C1 basis. For
example, if your span gas has a methane reference value of 100 [mu]mol/
mol, the correct FID response to that span gas is 100 [mu]mol/mol
because there is one carbon atom per CH4 molecule.
    (6) Introduce the C2H6 analytical gas mixture
upstream of the nonmethane cutter. Use good engineering judgment to
address the effect of hydrocarbon contamination if your point of
introduction is vastly different from the point of zero/span gas
introduction.
    (7) Allow time for the analyzer response to stabilize.
Stabilization time may include time to purge the nonmethane cutter and
to account for the analyzer's response.
    (8) While the analyzer measures a stable concentration, record 30
seconds of sampled data. Calculate the arithmetic mean of these data
points.
    (9) Divide the mean C2H6 concentration by the
reference concentration of C2H6, converted to a
C1 basis. The result is the C2H6
combined response factor and penetration fraction,
RFPFC2H6[NMC-FID]. Use this combined response factor and
penetration fraction according to Sec.  1065.660(b)(2)(iii),

Sec.  1065.660(c)(1)(iii), or Sec.  1065.665, as applicable.
    (10) Introduce the CH4 analytical gas mixture upstream
of the nonmethane cutter. Use good engineering judgment to address the
effect of hydrocarbon contamination if your point of introduction is
vastly different from the point of zero/span gas introduction.
    (11) Allow time for the analyzer response to stabilize.
Stabilization time may include time to purge the nonmethane cutter and
to account for the analyzer's response.
    (12) While the analyzer measures a stable concentration, record 30
seconds of sampled data. Calculate the arithmetic mean of these data
points.
    (13) Reroute the flow path to bypass the nonmethane cutter,
introduce the CH4 analytical gas mixture, and repeat the
steps in paragraphs (e)(11) and (12) of this section.
    (14) Divide the mean CH4 concentration measured through
the nonmethane cutter by the mean CH4 concentration measured
after bypassing the nonmethane cutter. The result is the CH4
penetration fraction, PFCH4[NMC-FID]. Use this penetration
fraction according to Sec.  1065.660(b)(2)(iii), Sec.
1065.660(c)(1)(iii), or Sec.  1065.665, as applicable.

0
61. The center heading ``NOX MEASUREMENTS'' preceding Sec.
1065.370 is revised to read as follows:

NOX and N2O Measurements

0
62. A new Sec.  1065.375 is added under the center header
``NOX and N2O Measurements'' to read as follows:

Sec.  1065.375  Interference verification for N2O analyzers.

    (a) Scope and frequency. See Sec.  1065.275 to determine whether
you need to verify the amount of interference after initial analyzer
installation and after major maintenance.
    (b) Measurement principles. Interference gasses can positively
interfere with certain analyzers by causing a response similar to
N2O. If the analyzer uses compensation algorithms that
utilize measurements of other gases to meet this interference
verification, simultaneously conduct these other measurements to test
the compensation algorithms during the analyzer interference
verification.
    (c) System requirements. Analyzers must have combined interference
that is within (0.0  1.0) [mu]mol/mol. We strongly
recommend a lower interference that is within (0.0  0.5)
[mu]mol/mol.
    (d) Procedure. Perform the interference verification as follows:
    (1) Start, operate, zero, and span the N2O analyzer as
you would before an emission test. If the sample is passed through a
dryer during emission testing, you may run this verification test with
the dryer if it meets the requirements of Sec.  1065.342. Operate the
dryer at the same conditions as you will for an emission test. You may
also run this verification test without the sample dryer.
    (2) Create a humidified test gas by bubbling a multi component span
gas that incorporates the target interference species and meets the
specifications in Sec.  1065.750 through distilled water in a sealed
vessel. If the sample is not passed through a dryer during emission
testing, control the vessel temperature to generate an H2O
level at least as high as the maximum expected during emission testing.
If the sample is passed through a dryer during emission testing,
control the vessel temperature to generate an H2O level at
least as high as the level determined in Sec.  1065.145(e)(2) for that
dryer. Use interference span gas concentrations that are at least as
high as the maximum expected during testing.
    (3) Introduce the humidified interference test gas into the sample
system. You may introduce it downstream of any sample dryer, if one is
used during testing.
    (4) If the sample is not passed through a dryer during this
verification test, measure the water mole fraction, xH2O, of
the humidified interference test gas as close as possible to the inlet
of the analyzer. For example, measure dewpoint, Tdew, and
absolute pressure, ptotal, to calculate xH2O.
Verify that the water content meets the requirement in paragraph (d)(2)
of this section. If the sample is passed through a dryer during this
verification test, you must verify that the water content of the
humidified test gas downstream of the vessel meets the requirement in
paragraph (d)(2) of this section based on either direct measurement of
the water content (e.g., dewpoint and pressure) or an estimate based on
the vessel pressure and temperature. Use good engineering judgment to
estimate the water content. For example, you may use previous direct
measurements of water content to verify the vessel's level of
saturation.
    (5) If a sample dryer is not used in this verification test, use
good engineering judgment to prevent condensation in the transfer
lines, fittings, or valves from the point where xH2O is
measured to the analyzer. We recommend that you design your system so
that the wall temperatures in the transfer lines, fittings, and valves
from the point where  xH2O is measured to the analyzer are
at least 5 [deg]C above the local sample gas dewpoint.
    (6) Allow time for the analyzer response to stabilize.
Stabilization time may include time to purge the transfer line and to
account for analyzer response.
    (7) While the analyzer measures the sample's concentration, record
its output for 30 seconds. Calculate the arithmetic mean of this data.
    (8) The analyzer meets the interference verification if the result
of paragraph (d)(7) of this section meets the tolerance in paragraph
(c) of this section.
    (9) You may also run interference procedures separately for
individual interference gases. If the interference gas levels used are
higher than the maximum levels expected during testing, you may scale
down each observed interference value by multiplying the observed
interference by the ratio of the maximum expected concentration value
to the actual value used during this procedure. You may run separate
interference concentrations of H2O (down to 0.025 mol/mol
H2O content) that are lower than the maximum levels expected
during testing, but you must scale up the observed H2O
interference by multiplying the observed interference by the ratio of
the maximum expected H2O concentration value to the actual
value used during this procedure. The sum of the scaled interference
values must meet the tolerance specified in paragraph (c) of this
section.

Subpart F--[Amended]

0
63. Section 1065.550 is amended by revising paragraphs (b) introductory
text and (b)(1), adding and reserving paragraph (b)(3), and adding
paragraph (b)(4) to read as follows:

Sec.  1065.550  Gas analyzer range validation, drift validation, and
drift correction.

* * * * *
    (b) Drift validation and drift correction. Calculate two sets of
brake-specific emission results for each test interval. Calculate one
set using the data before drift correction and calculate the other set
after correcting all the data for drift according to Sec.  1065.672.
Use the two sets of brake-specific emission results to validate the
duty cycle for drift as follows:
    (1) The duty cycle is validated for drift if you satisfy one of the
following criteria:
    (i) For each test interval of the duty cycle and for each measured
exhaust constituent, the difference between the uncorrected and the
corrected brake-

specific emission values over the test interval is within 4% of the uncorrected value or applicable emission standard,
whichever is greater. This requirement also applies for CO2,
whether or not an emission standard applies for CO2. Where
no emission standard applies for CO2, the difference must be
within 4% of the uncorrected value. See paragraph (b)(4) of
this section for exhaust constituents other than CO2 for
which no emission standard applies.
    (ii) For the entire duty cycle and for each regulated pollutant,
the difference between the uncorrected and corrected composite brake-
specific emission values over the entire duty cycle is within 4% of the uncorrected value or the applicable emission standard,
whichever is greater. Note that for purposes of drift validation using
composite brake-specific emission values over the entire duty cycle,
leave unaltered any negative emission results over a given test
interval (i.e., do not set them to zero). A third calculation of
composite brake-specific emission values is required for final
reporting. This calculation uses drift-corrected mass (or mass rate)
values from each test interval and sets any negative mass (or mass
rate) values to zero before calculating the composite brake-specific
emission values over the entire duty cycle. This requirement also
applies for CO2, whether or not an emission standard applies
for CO2. Where no emission standard applies for
CO2, the difference must be within 4% of the
uncorrected value. See paragraph (b)(3) of this section for exhaust
constituents other than CO2 for which no emission standard
applies.
* * * * *
    (3) [Reserved]
    (4) The provisions of paragraph (b)(3) of this section apply for
measurement of pollutants other than CO2 for which no
emission standard applies. You may use measurements that do not meet
the drift validation criteria specified in paragraph (b)(1) of this
section. For example, this allowance may be appropriate for measuring
and reporting very low concentrations of CH4 and
N2O as long as no emission standard applies for these
compounds.

Subpart G--[Amended]

0
64. Section 1065.601 is amended by revising paragraph (a)(1) to read as
follows:

Sec.  1065.601  Overview.

    (a) * * *
    (1) Use the signals recorded before, during, and after an emission
test to calculate brake-specific emissions of each measured exhaust
constituent.
* * * * *

0
65. Section 1065.660 is amended by revising paragraphs (a), (b)
introductory text, (b)(1), (b)(2), and (b)(3) introductory text, and
adding paragraph (c) to read as follows:

Sec.  1065.660  THC, NMHC, and CH4 determination.

    (a) THC determination and THC/CH4 initial contamination
corrections. (1) If we require you to determine THC emissions,
calculate xTHC[THC-FID]cor using the initial THC
contamination concentration xTHC[THC-FID]init from Sec.
1065.520 as follows:
[GRAPHIC] [TIFF OMITTED] TR30OC09.179

Example:

xTHCuncor = 150.3 [micro]mol/mol
xTHCinit = 1.1 [micro]mol/mol
xTHCcor = 150.3-1.1
xTHCcor = 149.2 [micro]mol/mol

    (2) For the NMHC determination described in paragraph (b) of this
section, correct xTHC[THC-FID] for initial HC contamination
using Eq. 1065.660-1. You may correct xTHC[NMC-FID] for
initial contamination of the CH4 sample train using Eq.
1065.660-1, substituting in CH4 concentrations for THC.
    (3) For the CH4 determination described in paragraph (c)
of this section, you may correct xTHC[NMC-FID] for initial
contamination of the CH4 sample train using Eq. 1065.660-1,
substituting in CH4 concentrations for THC.
    (b) NMHC determination. Use one of the following to determine NMHC
concentration, xNMHC:
    (1) If you do not measure CH4, you may determine NMHC
concentrations as described in Sec.  1065.650(c)(1)(vi).
    (2) For nonmethane cutters, calculate xNMHC using the
nonmethane cutter's penetration fractions (PF) of CH4 and
C2H6 from Sec.  1065.365, and using the HC
contamination and dry-to-wet corrected THC concentration
xTHC[THC-FID]cor as determined in paragraph (a) of this
section.
    (i) Use the following equation for penetration fractions determined
using an NMC configuration as outlined in Sec.  1065.365(d):
[GRAPHIC] [TIFF OMITTED] TR30OC09.180

Where:
xNMHC = concentration of NMHC.
xTHC[THC-FID]cor = concentration of THC, HC contamination
and dry-to-wet corrected, as measured by the THC FID during sampling
while bypassing the NMC.
xTHC[NMC-FID]cor = concentration of THC, HC contamination
(optional) and dry-to-wet corrected, as measured by the NMC FID
during sampling through the NMC.
RFCH4[THC-FID] = response factor of THC FID to
CH4, according to Sec.  1065.360(d).
RFPFC2H6[NMC-FID] = nonmethane cutter combined ethane
response factor and penetration fraction, according to Sec.
1065.365(d).
Example:
xTHC[THC-FID]cor = 150.3 [mu]mol/mol
xTHC[NMC-FID]cor = 20.5 [mu]mol/mol
RFPFC2H6[NMC-FID] = 0.019
RFCH4[THC-FID] = 1.05
[GRAPHIC] [TIFF OMITTED] TR30OC09.181

xNMHC = 131.4 [mu]mol/mol

    (ii) For penetration fractions determined using an NMC
configuration as outlined in section Sec.  1065.365(e), use the
following equation:

[GRAPHIC] [TIFF OMITTED] TR30OC09.182

Where:
xNMHC = concentration of NMHC.
xTHC[THC-FID]cor = concentration of THC, HC contamination
and dry-to-wet corrected, as measured by the THC FID during sampling
while bypassing the NMC.
PFCH4[NMC-FID] = nonmethane cutter CH4
penetration fraction, according to Sec.  1065.365(e).
xTHC[NMC-FID]cor = concentration of THC, HC contamination
(optional) and dry-to-wet corrected, as measured by the THC FID
during sampling through the NMC.
PFC2H6[NMC-FID] = nonmethane cutter ethane penetration
fraction, according to Sec.  1065.365(e).

Example:
xTHC[THC-FID]cor = 150.3 [mu]mol/mol
PFCH4[NMC-FID] = 0.990
xTHC[NMC-FID]cor = 20.5 [mu]mol/mol
PFC2H6[NMC-FID] = 0.020
[GRAPHIC] [TIFF OMITTED] TR30OC09.183

xNMHC = 132.3 [mu]mol/mol

    (iii) For penetration fractions determined using an NMC
configuration as outlined in Sec.  1065.365(f), use the following
equation:
[GRAPHIC] [TIFF OMITTED] TR30OC09.184

Where:
xNMHC = concentration of NMHC.
xTHC[THC-FID]cor = concentration of THC, HC contamination
and dry-to-wet corrected, as measured by the THC FID during sampling
while bypassing the NMC.
PFCH4[NMC-FID] = nonmethane cutter CH4
penetration fraction, according to Sec.  1065.365(f).
xTHC[NMC-FID]cor = concentration of THC, HC contamination
(optional) and dry-to-wet corrected, as measured by the THC FID
during sampling through the NMC.
RFPFC2H6[NMC-FID] = nonmethane cutter CH4
combined ethane response factor and penetration fraction, according
to Sec.  1065.365(f).
RFCH4[THC-FID] = response factor of THC FID to
CH4, according to Sec.  1065.360(d).
Example:
xTHC[THC-FID]cor = 150.3 [mu]mol/mol
PFCH4[NMC-FID] = 0.990
xTHC[NMC-FID]cor = 20.5 [mu]mol/mol
RFPFC2H6[NMC-FID] = 0.019
RFCH4[THC-FID] = 0.980
[GRAPHIC] [TIFF OMITTED] TR30OC09.185

xNMHC = 132.5 [mu]mol/mol

    (3) For a gas chromatograph, calculate xNMHC using
the THC analyzer's response factor (RF) for CH4, from
Sec.  1065.360, and the HC contamination and dry-to-wet corrected
initial THC concentration xTHC[THC-FID]cor as determined
in paragraph (a) of this section as follows:
* * * * *
    (c) CH4 determination. Use one of the following
methods to determine CH4 concentration, xCH4:
    (1) For nonmethane cutters, calculate xCH4 using the
nonmethane cutter's penetration fractions (PF) of CH4 and
C2H6 from Sec.  1065.365, using the dry-to-wet
corrected CH4 concentration xTHC[NMC-FID]cor
as determined in paragraph (a) of this section and optionally using
the CH4 contamination correction under paragraph (a) of
this section.
    (i) Use the following equation for penetration fractions
determined using an NMC configuration as outlined in Sec.
1065.365(d):
[GRAPHIC] [TIFF OMITTED] TR30OC09.186

Where:
xCH4 = concentration of CH4.
xTHC[NMC-FID]cor = concentration of THC, HC contamination
(optional) and dry-to-wet corrected, as measured by the NMC FID
during sampling through the NMC.
xTHC[THC-FID]cor = concentration of THC, HC contamination
and dry-to-wet corrected, as measured by the THC FID during sampling
while bypassing the NMC.
RFPFC2H6[NMC-FID] = the combined ethane response factor
and penetration fraction of the nonmethane cutter, according to
Sec.  1065.365(d).
RFCH4[THC-FID] = response factor of THC FID to
CH4, according to Sec.  1065.360(d).
Example:
xTHC[NMC-FID]cor = 10.4 [mu]mol/mol
xTHC[THC-FID]cor = 150.3 [mu]mol/mol
RFPFC2H6[NMC-FID] = 0.019
RFCH4[THC-FID] = 1.05
[GRAPHIC] [TIFF OMITTED] TR30OC09.187

xCH4 = 7.69 [mu]mol/mol

    (ii) For penetration fractions determined using an NMC
configuration as outlined in Sec.  1065.365(e), use the following
equation:
[GRAPHIC] [TIFF OMITTED] TR30OC09.188

Where:
xCH4 = concentration of CH4.
xTHC[NMC-FID]cor = concentration of THC, HC contamination
(optional) and dry-to-wet corrected, as measured by the NMC FID
during sampling through the NMC.
xTHC[THC-FID]cor = concentration of THC, HC contamination
and dry-to-wet corrected, as measured by the THC FID during sampling
while bypassing the NMC.
PFC2H6[NMC-FID] = nonmethane cutter ethane penetration
fraction, according to Sec.  1065.365(e).
RFCH4[THC-FID] = response factor of THC FID to
CH4, according to Sec.  1065.360(d).
PFCH4[NMC-FID] = nonmethane cutter CH4
penetration fraction, according to Sec.  1065.365(e).
Example:
xTHC[NMC-FID]cor = 10.4 [mu]mol/mol
xTHC[THC-FID]cor = 150.3 [mu]mol/mol
PFC2H6[NMC-FID] = 0.020
RFCH4[THC-FID] = 1.05

PFCH4[NMC-FID] = 0.990
[GRAPHIC] [TIFF OMITTED] TR30OC09.189

xCH4 = 7.25 [mu]mol/mol

    (iii) For penetration fractions determined using an NMC
configuration as outlined in Sec.  1065.365(f), use the following
equation:
[GRAPHIC] [TIFF OMITTED] TR30OC09.190

Where:
xCH4 = concentration of CH4.
xTHC[NMC-FID]cor = concentration of THC, HC contamination
(optional) and dry-to-wet corrected, as measured by the NMC FID
during sampling through the NMC.
xTHC[THC-FID]cor = concentration of THC, HC contamination
and dry-to-wet corrected, as measured by the THC FID during sampling
while bypassing the NMC.
RFPFC2H6[NMC-FID] = the combined ethane response factor
and penetration fraction of the nonmethane cutter, according to
Sec.  1065.365(f).
PFCH4[NMC-FID] = nonmethane cutter CH4
penetration fraction, according to Sec.  1065.365(f).
RFCH4[THC-FID] = response factor of THC FID to
CH4, according to Sec.  1065.360(d).
Example:

xTHC[NMC-FID]cor = 10.4 [micro]mol/mol
xTHC[THC-FID]cor = 150.3 [micro]mol/mol
RFPFC2H6[NMC-FID] = 0.019
PFCH4[NMC-FID] = 0.990
RFCH4[THC-FID] = 1.05
[GRAPHIC] [TIFF OMITTED] TR30OC09.191

xCH4 = 7.78 [micro]mol/mol

    (2) For a gas chromatograph, xCH4 is the actual dry-
to-wet corrected CH4 concentration as measured by the
analyzer.

Subpart H--[Amended]

0
66. Section 1065.750 is amended by revising paragraph (a)(1)(ii) and
adding paragraph (a)(3)(xi) to read as follows:

Sec.  1065.750  Analytical Gases.

* * * * *
    (a) * * *
    (1) * * *
    (ii) Contamination as specified in the following table:

 Table 1 of Sec.   1065.750--General specifications for purified gases.
------------------------------------------------------------------------
                                  Purified synthetic
           Constituent                  air \1\         Purified N2\1\
------------------------------------------------------------------------
THC (C1 equivalent).............  <= 0.05 [mu]mol/    <= 0.05 [mu]mol/
                                   mol.                mol.
CO..............................  <= 1 [mu]mol/mol..  <= 1 [mu]mol/mol.
CO2.............................  <= 10 [mu]mol/mol.  <= 10 [mu]mol/mol.
O2..............................  0.205 to 0.215 mol/ <= 2 [mu]mol/mol.
                                   mol.
NOX.............................  <= 0.02 [mu]mol/    <= 0.02 [mu]mol/
                                   mol.                mol.
N2O\2\..........................  <= 0.05 [mu]mol/    <= 0.05 [mu]mol/
                                   mol.                mol.
------------------------------------------------------------------------
\1\ We do not require these levels of purity to be NIST-traceable.
\2\ The N2O limit applies only if the standard-setting part requires you
  to report N2O.

* * * * *
    (3) * * *
    (xi) N2O, balance purified synthetic air.
* * * * *

0
67. Section 1065.1001 is amended by revising the definition for
``Oxides of nitrogen'' to read as follows:

Sec.  1065.1001  Definitions.

* * * * *
    Oxides of nitrogen means NO and NO2 as measured by the
procedures specified in Sec.  1065.270. Oxides of nitrogen are
expressed quantitatively as if the NO is in the form of NO2,
such that you use an effective molar mass for all oxides of nitrogen
equivalent to that of NO2.
* * * * *

0
68. Section 1065.1005 is amended by revising paragraphs (b), (f)(2),
and (g) to read as follows:

Sec.  1065.1005  Symbols, abbreviations, acronyms, and units of
measure.

* * * * *
    (b) Symbols for chemical species. This part uses the following
symbols for chemical species and exhaust constituents:

------------------------------------------------------------------------
                 Symbol                              Species
------------------------------------------------------------------------
Ar.....................................  argon.
C......................................  carbon.
CH4....................................  methane.
C2H6...................................  ethane.
C3H8...................................  propane.
C4H10..................................  butane.
C5H12..................................  pentane.
CO.....................................  carbon monoxide.
CO2....................................  carbon dioxide.
H......................................  atomic hydrogen.
H2.....................................  molecular hydrogen.
H2O....................................  water.
He.....................................  helium.
\85\Kr.................................  krypton 85.
N2.....................................  molecular nitrogen.
NMHC...................................  nonmethane hydrocarbon.
NMHCE..................................  nonmethane hydrocarbon
                                          equivalent.
NO.....................................  nitric oxide.
NO2....................................  nitrogen dioxide.
NOX....................................  oxides of nitrogen.
N2O....................................  nitrous oxide.
NOTHC..................................  nonoxygenated hydrocarbon.
O2.....................................  molecular oxygen.
OHC....................................  oxygenated hydrocarbon.
\210\Po................................  polonium 210.
PM.....................................  particulate mass.
S......................................  sulfur.
SO2....................................  sulfur dioxide.
THC....................................  total hydrocarbon.
ZrO2...................................  zirconium dioxide.
------------------------------------------------------------------------

* * * * *
    (f) * * *
    (2) This part uses the following molar masses or effective molar
masses of chemical species:

------------------------------------------------------------------------
                                                              g/mol (10-
              Symbol                       Quantity          3.kg\.\mol-
                                                                  1)
------------------------------------------------------------------------
Mair.............................  molar mass of dry air...     28.96559
MAr..............................  molar mass of argon.....       39.948
MC...............................  molar mass of carbon....      12.0107
MCO..............................  molar mass of carbon          28.0101
                                    monoxide.
MCO2.............................  molar mass of carbon          44.0095
                                    dioxide.
MH...............................  molar mass of atomic          1.00794
                                    hydrogen.
MH2..............................  molar mass of molecular       2.01588
                                    hydrogen.
MH2O.............................  molar mass of water.....     18.01528
MHe..............................  molar mass of helium....     4.002602
MN...............................  molar mass of atomic          14.0067
                                    nitrogen.
MN2..............................  molar mass of molecular       28.0134
                                    nitrogen.
MNMHC............................  effective molar mass of     13.875389
                                    nonmethane hydrocarbon
                                    \2\.
MNMHCE...........................  effective molar mass of     13.875389
                                    nonmethane equivalent
                                    hydrocarbon \2\.
MNOx.............................  effective molar mass of       46.0055
                                    oxides of nitrogen \3\.
MN2O.............................  effective molar mass of       44.0128
                                    nitrous oxide.
MO...............................  molar mass of atomic          15.9994
                                    oxygen.
MO2..............................  molar mass of molecular       31.9988
                                    oxygen.
MC3H8............................  molar mass of propane...     44.09562
MS...............................  molar mass of sulfur....       32.065
MTHC.............................  effective molar mass of     13.875389
                                    total hydrocarbon \2\.
MTHCE............................  effective molar mass of     13.875389
                                    total hydrocarbon
                                    equivalent \2\.
------------------------------------------------------------------------
\1\ See paragraph (f)(1) of this section for the composition of dry air
\2\ The effective molar masses of THC, THCE, NMHC, and NMHCE are defined
  by an atomic hydrogen-to-carbon ratio, [alpha], of 1.85
\3\ The effective molar mass of NOx is defined by the molar mass of
  nitrogen dioxide, NO2

* * * * *
    (g) Other acronyms and abbreviations. This part uses the following
additional abbreviations and acronyms:

ASTM American Society for Testing and Materials.
BMD bag mini-diluter.
BSFC brake-specific fuel consumption.
CARB California Air Resources Board.
CFR Code of Federal Regulations.
CFV critical-flow venturi.
CI compression-ignition.
CITT Curb Idle Transmission Torque.
CLD chemiluminescent detector.
CVS constant-volume sampler.
DF deterioration factor.
ECM electronic control module.
EFC electronic flow control.
EGR exhaust gas recirculation.
EPA Environmental Protection Agency.
FEL Family Emission Limit
FID flame-ionization detector.
GC gas chromatograph.
GC-ECD gas chromatograph with an electron-capture detector.
IBP initial boiling point.
ISO International Organization for Standardization.
LPG liquefied petroleum gas.
NDIR nondispersive infrared.
NDUV nondispersive ultraviolet.
NIST National Institute for Standards and Technology.
PDP positive-displacement pump.
PEMS portable emission measurement system.
PFD partial-flow dilution.
PMP Polymethylpentene.
pt. a single point at the mean value expected at the standard.
PTFE polytetrafluoroethylene (commonly known as TeflonTM).
RE rounding error.
RMC ramped-modal cycle.
RMS root-mean square.
RTD resistive temperature detector.
SSV subsonic venturi.
SI spark-ignition.
UCL upper confidence limit.
UFM ultrasonic flow meter.
U.S.C. United States Code.

[FR Doc. E9-23315 Filed 10-29-09; 8:45 am]

BILLING CODE 6560-50-P