[Federal Register: March 9, 1999 (Volume 64, Number 45)]
[Proposed Rules]
[Page 11659-11705]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr09mr99-26]

[[pp. 11659-11705]] National Emission Standards for Hazardous Air Pollutant
Emissions: Group I Polymers and Resins; National Emission Standards for
Hazardous Air Pollutant Emissions: Group IV Polymers and Resins; and
National Emission Standards for Hazardous Air Pollutants for Pol[[Page 11659]]

[[Continued from page 11658]]

[[Page 11659]]

Compliance Status required by Sec. 63.1335(e)(5) shall include the
information specified in paragraphs (f)(8)(i) and (f)(8)(ii) of this
section, as applicable. If it is determined that the process unit is
not subject to this subpart, the owner or operator shall either retain
all information, data, and analysis used to document the basis for the
determination that the primary product is not a thermoplastic product,
or, when requested by the Administrator, demonstrate that the process
unit is not subject to this subpart.
    (i) If the TPPU manufactures only one thermoplastic product,
identification of that thermoplastic product.
    (ii) If the TPPU is designed and operated as a flexible operation
unit, the information specified in paragraphs (f)(8)(ii)(A) through
(f)(8)(ii)(D) of this section, as appropriate, shall be submitted.
    (A) If a primary product could be determined, identification of the
primary product.
    (B) Identification of which compliance option, either paragraph
(f)(6)(i) or (f)(6)(ii) of this section, has been selected by the owner
or operator.
    (C) If the option to establish separate parameter monitoring levels
for each product in paragraph (f)(7)(i) of this section is selected,
the identification of each product and the corresponding parameter
monitoring level.
    (D) If the option to establish a single parameter monitor level in
paragraph (f)(7)(ii) of this section is selected, the parameter
monitoring level for each parameter.
    (9) TPPUs terminating production of all thermoplastic products. If
a TPPU terminates the production of all thermoplastic products and does
not anticipate the production of any thermoplastic products in the
future, the process unit is no longer a TPPU and is not subject to this
subpart after notification is made to the Administrator. This
notification shall be accompanied by a rationale for why it is
anticipated that no thermoplastic products will be produced in the
process unit in the future.
    (10) Redetermination of applicability to TPPUs that are flexible
operation units. Whenever changes in production occur that could
reasonably be expected to change the primary product of a TPPU that is
operating as a flexible operation unit from a thermoplastic product to
a product that would make the process unit subject to another subpart
of this part, the owner or operator shall re-evaluate the status of the
process unit as a TPPU in accordance with paragraphs (f)(10)(i) through
(iii) of this section.
    (i) For each product produced in the flexible operation unit, the
owner or operator shall calculate the percentage of total operating
time in which the product was produced for the preceding five-year
period, or since the date that the process unit began production of any
product, whichever is shorter.
    (ii) The owner or operator shall identify the primary product as
the product with the highest percentage of total operating time for the
period.
    (iii) If the conditions in (f)(10)(iii)(A) through (C) of this
section are met, the flexible operation unit shall no longer be
designated as a TPPU and shall no longer be subject to the provisions
of this subpart after the date that the process unit is required to be
in compliance with the provisions of the other subpart of this part to
which it is subject. If the conditions in paragraphs (f)(10)(iii)(A)
through (C) of this section are not met, the flexible operation unit
shall continue to be considered a TPPU and subject to the requirements
of this subpart.
    (A) The product identified in (f)(10)(ii) of this section is not a
thermoplastic product; and
    (B) The production of the product identified in (f)(10)(ii) of this
section is subject to another subpart of this part; and
    (C) The owner or operator submits a notification to the
Administrator of the pending change in applicability.
    (g) Storage vessel ownership determination. The owner or operator
shall follow the procedures specified in paragraphs (g)(1) through
(g)(7) of this section to determine to which process unit a storage
vessel shall be assigned. Paragraph (g)(8) of this section specifies
when an owner or operator is required to redetermine to which process
unit a storage vessel is assigned.
    (1) If a storage vessel is already subject to another subpart of 40
CFR part 63 on September 12, 1996, said storage vessel shall be
assigned to the process unit subject to the other subpart.
    (2) If a storage vessel is dedicated to a single process unit, the
storage vessel shall be assigned to that process unit.
    (3) If a storage vessel is shared among process units, then the
storage vessel shall be assigned to that process unit located on the
same plant site as the storage vessel that has the greatest input into
or output from the storage vessel (i.e., said process unit has the
predominant use of the storage vessel).
    (4) If predominant use cannot be determined for a storage vessel
that is shared among process units and if only one of those process
units is a TPPU subject to this subpart, the storage vessel shall be
assigned to said TPPU.
* * * * *
    (6) If the predominant use of a storage vessel varies from year to
year, then predominant use shall be determined based on the utilization
that occurred during the year preceding September 12, 1996 or based on
the expected utilization for the 5 years following September 12, 1996
for existing affected sources, whichever is more representative of the
expected operations for said storage vessel, and based on the expected
utilization for the first 5 years after initial start-up for new
affected sources. The determination of predominant use shall be
reported in the Notification of Compliance Status, as required by
Sec. 63.1335(e)(5)(vi).
    (7) Where a storage vessel is located at a major source that
includes one or more process units which place material into, or
receive materials from the storage vessel, but the storage vessel is
located in a tank farm (including a marine tank farm), the
applicability of this subpart shall be determined according to the
provisions in paragraphs (g)(7)(i) through (g)(7)(iv) of this section.
    (i) The storage vessel may only be assigned to a process unit that
utilizes the storage vessel and does not have an intervening storage
vessel for that product (or raw material, as appropriate). With respect
to any process unit, an intervening storage vessel means a storage
vessel connected by hard-piping both to the process unit and to the
storage vessel in the tank farm so that product or raw material
entering or leaving the process unit flows into (or from) the
intervening storage vessel and does not flow directly into (or from)
the storage vessel in the tank farm.
    (ii) If there is no process unit at the major source that meets the
criteria of paragraph (g)(7)(i) of this section with respect to a
storage vessel, this subpart does not apply to the storage vessel.
    (iii) If there is only one process unit at the major source that
meets the criteria of paragraph (g)(7)(i) of this section with respect
to a storage vessel, the storage vessel shall be assigned to that
process unit.
    (iv) If there are two or more process units at the major source
that meet the criteria of paragraph (g)(7)(i) of this section with
respect to a storage vessel, the storage vessel shall be assigned to
one of those process units according to the provisions of paragraphs
(g)(3) through (g)(6) of this section. The predominant use shall be
determined among only those process units that

[[Page 11660]]

meet the criteria of paragraph (g)(7)(i) of this section.
    (8) If the storage vessel begins receiving material from (or
sending material to) a process unit that was not included in the
initial determination, or ceases to receive material from (or send
material to) a process unit, the owner or operator shall re-evaluate
the applicability of this subpart to the storage vessel.
    (h) Recovery operations equipment ownership determination. The
owner or operator shall follow the procedures specified in paragraphs
(h)(1) through (h)(6) of this section to determine to which process
unit recovery operations equipment shall be assigned. Paragraph (h)(7)
of this section specifies when an owner or operator is required to
redetermine to which process unit the recovery operations equipment is
assigned.
    (1) If recovery operations equipment is already subject to another
subpart of 40 CFR part 63 on September 12, 1996, said recovery
operations equipment shall be assigned to the process unit subject to
the other subpart.
    (2) If recovery operations equipment is dedicated to a single
process unit, the recovery operations equipment shall be assigned to
that process unit.
    (3) If recovery operations equipment is shared among process units,
then the recovery operations equipment shall be assigned to that
process unit located on the same plant site as the recovery operations
equipment that has the greatest input into or output from the recovery
operations equipment (i.e., said process unit has the predominant use
of the recovery operations equipment).
    (4) If predominant use cannot be determined for recovery operations
equipment that is shared among process units and if one of those
process units is a TPPU subject to this subpart, the recovery
operations equipment shall be assigned to said TPPU.
    (5) If predominant use cannot be determined for recovery operations
equipment that is shared among process units and if more than one of
the process units are TPPUs that have different primary products and
that are subject to this subpart, then the owner or operator shall
assign the recovery operations equipment to any one of said TPPUs.
    (6) If the predominant use of recovery operations equipment varies
from year to year, then predominant use shall be determined based on
the utilization that occurred during the year preceding September 12,
1996 or based on the expected utilization for the 5 years following
September 12, 1996 for existing affected sources, whichever is the more
representative of the expected operations for said recovery operations
equipment, and based on the first 5 years after initial start-up for
new affected sources. The determination of predominant use shall be
reported in the Notification of Compliance Status, as required by
Sec. 63.1335(e)(5)(vii).
    (7) If a piece of recovery operations equipment begins receiving
material from a process unit that was not included in the initial
determination, or ceases to receive material from a process unit that
was included in the initial determination, the owner or operator shall
reevaluate the applicability of this subpart to that recovery
operations equipment.
    (i) Changes or additions to plant sites. The provisions of
paragraphs (i)(1) through (i)(4) of this section apply to owners or
operators that change or add to their plant site or affected source.
Paragraph (i)(5) of this section provides examples of what are and are
not considered process changes for purposes of this paragraph (i) of
this section. Paragraph (i)(6) of this section discusses reporting
requirements.
    (1) Adding a TPPU to a plant site. The provisions of paragraphs
(i)(1)(i) and (i)(1)(ii) of this section apply to owners or operators
that add one or more TPPUs to a plant site.
    (i) If a group of one or more TPPUs that produce the same primary
product is added to a plant site, the group of one or more TPPUs and
associated equipment, as listed in paragraph (a)(4) of this section,
shall be a new affected source and shall comply with the requirements
for a new affected source in this subpart upon initial start-up or by
February 27, 1998, whichever is later, if the criteria specified in
either paragraph (i)(1)(i)(A) or (i)(1)(i)(B) of this section are met,
and the criteria in either paragraph (i)(1)(i)(C) or (i)(1)(i)(D) of
this section are met:
    (A) The construction of the group of one or more TPPUs commenced
after March 29, 1995.
    (B) The construction or reconstruction, for process units that have
become TPPUs, commenced after March 29, 1995.
    (C) The group of one or more TPPUs and associated equipment, as
listed in paragraph (a)(4) of this section, has the potential to emit
10 tons per year or more of any HAP or 25 tons per year or more of any
combination of HAP, and the primary product of the group of one or more
TPPUs is currently produced at the plant site as the primary product of
an affected source; or
    (D) The primary product of the group of one or more TPPUs is not
currently produced at the plant site as the primary product of an
affected source and the plant site meets, or after the addition of the
group of one or more TPPUs and associated equipment, as listed in
paragraph (a)(4) of this section, will meet the definition of a major
source.
    (ii) If a group of one or more TPPUs that produce the same primary
product is added to a plant site, and the group of one or more TPPUs
does not meet the criteria specified in paragraph (i)(1)(i) of this
section, and the plant site meets, or after the addition will meet, the
definition of a major source, the group of one or more TPPUs and
associated equipment, as listed in paragraph (a)(4) of this section,
shall comply with the requirements for an existing affected source in
this subpart upon initial start-up; by September 12, 1999; or by 6
months after notifying the Administrator that a process unit has been
designated as a TPPU (in accordance with paragraph (f)(3)(iii) of this
section), whichever is later.
    (2) * * *
    (i) If any process change or addition is made to an existing
affected source and said process change or addition meets the criteria
specified in paragraphs (i)(2)(i)(A) through (i)(2)(i)(B) of this
section, the affected source shall be a new affected source and shall
be subject to the requirements for a new affected source in this
subpart upon initial start-up or by February 27, 1998, whichever is
later.
    (A) It is a process change or addition that meets the definition of
reconstruction in Sec. 63.1312(b); and
* * * * *
    (ii) If any process change is made that results in one or more
Group 1 emission points (i.e., either newly created Group 1 emission
points or emission points that change group status from Group 2 to
Group 1); if any process change is made that results in baseline
emissions (i.e., emissions prior to applying controls for purposes of
complying with this rule) from continuous process vents in the
collection of material recovery sections within the affected source at
an existing affected source producing PET using a continuous dimethyl
terephthalate process changing from less than or equal to 0.12 kg
organic HAP per Mg of product to greater than 0.12 kg organic HAP per
Mg of product; or if any other emission point(s) is added to an
existing affected source (i.e., Group 2 emission point(s) or equipment
leak components subject to Sec. 63.1331) and the process change or
addition does not meet the criteria specified in paragraphs
(i)(2)(i)(A) through (i)(2)(i)(B) of this section, the resulting
emission point(s)

[[Page 11661]]

shall be subject to the requirements for an existing affected source in
this subpart. The emission point(s) shall be in compliance upon initial
start-up or by the appropriate compliance date specified in
Sec. 63.1311 (i.e., February 27, 1998 for most equipment leak
components subject to Sec. 63.1331 and September 12, 1999 for emission
points other than equipment leaks), whichever is later.
    (3) Existing affected source requirements for surge control vessels
and bottoms receivers that become subject to subpart H requirements. If
a process change or addition of an emission point causes a surge
control vessel or bottoms receiver to become subject to Sec. 63.170
under this paragraph (i), the owner or operator shall be in compliance
upon initial start-up or by September 12, 1999, whichever is later.
    (4) Existing affected source requirements for compressors that
become subject to the requirements of subpart H of this part. If a
process change or the addition of an emission point causes a compressor
to become subject to Sec. 63.164 under this paragraph (i), the owner or
operator shall be in compliance upon initial start-up or by the
compliance date for that compressor as specified in Sec. 63.1311(d)(1)
through (d)(4), whichever is later.
    (5) Determining what are and are not process changes. For purposes
of paragraph (i) of this section, examples of process changes include,
but are not limited to, changes in feedstock type, or catalyst type, or
whenever there is a replacement, removal, or addition of recovery
equipment, or changes that increase production capacity. For purposes
of paragraph (i) of this section, process changes do not include:
process upsets, unintentional temporary process changes, and changes
that are within the equipment configuration and operating conditions
documented in the Notification of Compliance Status report required by
Sec. 63.1335(e)(5).
    (6) Reporting requirements for owners or operators that change or
add to their plant site or affected source. Owners or operators that
change or add to their plant site or affected source, as discussed in
paragraphs (i)(1) and (i)(2) of this section, shall submit a report as
specified in Sec. 63.1335(e)(7)(iv).
    (j) Applicability of this subpart during periods of start-up,
shutdown, malfunction, or non-operation. Paragraphs (j)(1) through
(j)(4) of this section shall be followed during periods of start-up,
shutdown, malfunction, or non-operation of the affected source or any
part thereof.
    (1) The emission limitations set forth in this subpart and the
emission limitations referred to in this subpart shall apply at all
times except during periods of non-operation of the affected source (or
specific portion thereof) resulting in cessation of the emissions to
which this subpart applies. The emission limitations of this subpart
and the emission limitations referred to in this subpart shall not
apply during periods of start-up, shutdown, or malfunction. During
periods of start-up, shutdown, or malfunction, the owner or operator
shall follow the applicable provisions of the start-up, shutdown, and
malfunction plan required by Sec. 63.6(e)(3). However, if a start-up,
shutdown, malfunction, or period of non-operation of one portion of an
affected source does not affect the ability of a particular emission
point to comply with the emission limitations to which it is subject,
then that emission point shall still be required to comply with the
applicable emission limitations of this subpart during the start-up,
shutdown, malfunction, or period of non-operation. For example, if
there is an overpressure in the reactor area, a storage vessel that is
part of the affected source would still be required to be controlled in
accordance with the emission limitations in Sec. 63.1314. Similarly,
the degassing of a storage vessel would not affect the ability of a
batch process vent to meet the emission limitations of Secs. 63.1321
through 63.1327.
    (2) The emission limitations set forth in subpart H of this part,
as referred to in Sec. 63.1331, shall apply at all times except during
periods of non-operation of the affected source (or specific portion
thereof) in which the lines are drained and depressurized resulting in
cessation of the emissions to which Sec. 63.1331 applies, or during
periods of start-up, shutdown, malfunction, or process unit shutdown
(as defined in Sec. 63.161).
    (3) The owner or operator shall not shut down items of equipment
that are required or utilized for compliance with this subpart during
periods of start-up, shutdown, or malfunction during times when
emissions (or, where applicable, wastewater streams or residuals) are
being routed to such items of equipment, if the shutdown would
contravene requirements of this subpart applicable to such items of
equipment. This paragraph (j)(3) does not apply if the item of
equipment is malfunctioning. This paragraph also does not apply if the
owner or operator shuts down the compliance equipment (other than
monitoring systems) to avoid damage due to a contemporaneous start-up,
shutdown, or malfunction of the affected source or portion thereof. If
the owner or operator has reason to believe that monitoring equipment
would be damaged due to a contemporaneous start-up, shutdown, or
malfunction of the affected source or portion thereof, the owner or
operator shall provide documentation supporting such a claim in the
Precompliance Report or in a supplement to the Precompliance Report, as
provided in Sec. 63.1335(e)(3). Once approved by the Administrator in
accordance with Sec. 63.1335(e)(3)(viii), the provision for ceasing to
collect, during a start-up, shutdown, or malfunction, monitoring data
that would otherwise be required by the provisions of this subpart must
be incorporated into the start-up, shutdown, malfunction plan for that
affected source, as stated in Sec. 63.1335(b)(1).
    (4) During start-ups, shutdowns, and malfunctions when the emission
limitations of this subpart do not apply pursuant to paragraphs (j)(1)
through (j)(3) of this section, the owner or operator shall implement,
to the extent reasonably available, measures to prevent or minimize
excess emissions to the extent practical. For purposes of this
paragraph, the term ``excess emissions'' means emissions in excess of
those that would have occurred if there were no start-up, shutdown, or
malfunction and the owner or operator complied with the relevant
provisions of this subpart. The measures to be taken shall be
identified in the applicable start-up, shutdown, and malfunction plan,
and may include, but are not limited to, air pollution control
technologies, recovery technologies, work practices, pollution
prevention, monitoring, and/or changes in the manner of operation of
the affected source. Back-up control devices are not required, but may
be used if available.
    30. Section 63.1311 is amended by:
    a. Revising the section title and paragraphs (a), (d) introductory
text, (d)(1) introductory text, (d)(2), (d)(3), and (d)(5), (e)
introductory text, (h), (i)(1), (j), (l) and (m); and
    b. Adding paragraph (d)(6), (e)(3), (i)(3), (n), and (o), to read
as follows:

Sec. 63.1311   Compliance dates and relationship of this subpart to
existing applicable rules.

    (a) Affected sources are required to achieve compliance on or
before the dates specified in paragraphs (b) through (d) of this
section. Paragraph (e) of this section provides information on
requesting compliance extensions. Paragraphs (f) through (n) of this
section discuss the relationship of this subpart to subpart A of this
part and to other applicable rules. Where an override of

[[Page 11662]]

another authority of the Act is indicated in this subpart, only
compliance with the provisions of this subpart is required. Paragraph
(o) of this section specifies the meaning of time periods.
* * * * *
    (d) Except as provided for in paragraphs (d)(1) through (d)(6) of
this section, existing affected sources shall be in compliance with
Sec. 63.1331 no later than February 27, 1998 unless an extension has
been granted pursuant to paragraph (e) of this section.
    (1) Compliance with the compressor provisions of Sec. 63.164 shall
occur no later than February 27, 1998 for any compressor meeting one or
more of the criteria in paragraphs (d)(1)(i) through (d)(1)(iv) of this
section, if the work can be accomplished without a process unit
shutdown:
* * * * *
    (2) Compliance with the compressor provisions of Sec. 63.164 shall
occur no later than March 12, 1998 for any compressor meeting all the
criteria in paragraphs (d)(2)(i) through (d)(2)(iv) of this section:
    (i) The compressor meets one or more of the criteria specified in
paragraphs (d)(1)(i) through (d)(1)(iv) of this section;
    (ii) The work can be accomplished without a process unit shutdown;
    (iii) The additional time is actually necessary due to the
unavailability of parts beyond the control of the owner or operator;
and
    (iv) The owner or operator submits the request for a compliance
extension to the appropriate Environmental Protection Agency (EPA)
Regional Office at the address listed in Sec. 63.13 no later than June
16, 1997. The request for a compliance extension shall contain the
information specified in Sec. 63.6(i)(6)(i)(A), (B), and (D). Unless
the EPA Regional Office objects to the request for a compliance
extension within 30 days after receipt of the request, the request
shall be deemed approved.
    (3) If compliance with the compressor provisions of Sec. 63.164
cannot reasonably be achieved without a process unit shutdown, the
owner or operator shall achieve compliance no later than September 12,
1998. The owner or operator who elects to use this provision shall
submit a request for a compliance extension in accordance with the
requirements of paragraph (d)(2)(iv) of this section.
* * * * *
    (5) Compliance with the provisions of Sec. 63.170 shall occur no
later than September 12, 1999.
    (6) Notwithstanding paragraphs (d)(1) through (d)(5) of this
section, existing affected sources whose primary product, as determined
using the procedures specified in Sec. 63.1310(f), is PET shall be in
compliance with Sec. 63.1331 no later than September 12, 1999.
    (e) Pursuant to Section 112(i)(3)(B) of the Act, an owner or
operator may request an extension allowing the existing affected source
up to 1 additional year to comply with section 112(d) standards. For
purposes of this subpart, a request for an extension shall be submitted
to the permitting authority as part of the operating permit application
or to the Administrator as a separate submittal or as part of the
Precompliance Report. Requests for extensions shall be submitted no
later than 120 days prior to the compliance dates specified in
paragraphs (b) through (d) of this section, except as provided in
paragraph (e)(3) of this section. The dates specified in Sec. 63.6(i)
for submittal of requests for extensions shall not apply to this
subpart.
* * * * *
    (3) An owner or operator may submit a compliance extension request
after the date specified in paragraph (e) of this section, provided
that the need for the compliance extension arose after that date, and
the need arose due to circumstances beyond reasonable control of the
owner or operator. This request shall include, in addition to the
information specified in paragraph (e)(1) of this section, a statement
of the reasons additional time is needed and the date when the owner or
operator first learned of the circumstances necessitating a request for
compliance extension under this paragraph (e)(3).
* * * * *
    (h) After the compliance dates specified in this section, a storage
vessel that is assigned to an affected source subject to this subpart
and that is also subject to the provisions of 40 CFR part 60, subpart
Kb, is required to comply only with the provisions of this subpart.
After the compliance dates specified in this section, said storage
vessel shall no longer be subject to 40 CFR part 60, subpart Kb.
    (i)(1) Except as provided in paragraphs (i)(2) and (i)(3) of this
section, after the compliance dates specified in this section, affected
sources producing PET using a continuous terephthalic acid process,
producing PET using a continuous dimethyl terephthalate process, or
producing polystyrene resin using a continuous process subject to this
subpart that are also subject to the provisions of 40 CFR part 60,
subpart DDD, are required to comply only with the provisions of this
subpart. After the compliance dates specified in this section, said
sources shall no longer be subject to 40 CFR part 60, subpart DDD.
* * * * *
    (3) Existing affected sources producing PET using a continuous
terephthalic acid process, but not using a continuous terephthalic acid
high viscosity multiple end finisher process, that are subject to and
complying with 40 CFR 60.562-1(c)(2)(ii)(B) shall continue to comply
with said section. Existing affected sources producing PET using a
continuous dimethyl terephthalic process that are subject to and
complying with 40 CFR 60.562-1(c)(1)(ii)(B) shall continue to comply
with said section.
    (j) Owners or operators of affected sources subject to this subpart
that are also subject to the provisions of subpart Q of this part shall
comply with both subparts.
* * * * *
    (l) After the compliance dates specified in this section, a
distillation operation that is assigned to an affected source subject
to this subpart that is also subject to the provisions of 40 CFR part
60, subpart NNN, is required to comply only with the provisions of this
subpart. After the compliance dates specified in this section, the
distillation operation shall no longer be subject to 40 CFR part 60,
subpart NNN.
    (m) Applicability of other regulations for monitoring,
recordkeeping or reporting with respect to combustion devices, recovery
devices, or recapture devices. After the compliance dates specified in
this subpart, if any combustion device, recovery device or recapture
device subject to this subpart is also subject to monitoring,
recordkeeping, and reporting requirements in 40 CFR part 264 subpart AA
or CC, or is subject to monitoring and recordkeeping requirements in 40
CFR part 265 subpart AA or CC and the owner or operator complies with
the periodic reporting requirements under 40 CFR part 264 subpart AA or
CC that would apply to the device if the facility had final-permitted
status, the owner or operator may elect to comply either with the
monitoring, recordkeeping and reporting requirements of this subpart,
or with the monitoring, recordkeeping and reporting requirements in 40
CFR parts 264 and/or 265, as described in this paragraph, which shall
constitute compliance with the monitoring, recordkeeping and reporting
requirements of this subpart. The owner or operator shall identify
which option has been selected in the Notification of Compliance Status
required by Sec. 63.1335(e)(5).

[[Page 11663]]

    (n) Applicability of other requirements for heat exchange systems
or waste management units. Paragraphs (n)(1) and (n)(2) of this section
address instances in which certain requirements from other regulations
also apply for the same heat exchange system(s) or waste management
unit(s) that are subject to this subpart.
    (1) After the applicable compliance date specified in this subpart,
if a heat exchange system subject to this subpart is also subject to a
standard identified in paragraphs (n)(1)(i) or (ii) of this section,
compliance with the applicable provisions of the standard identified in
paragraphs (n)(1)(i) or (ii) of this section shall constitute
compliance with the applicable provisions of this subpart with respect
to that heat exchange system.
    (i) Subpart F of this part.
    (ii) A subpart of this part which requires compliance with
Sec. 63.104 of subpart F of this part (e.g., subpart U of this part).
    (2) After the applicable compliance date specified in this subpart,
if any waste management unit subject to this subpart is also subject to
a standard identified in paragraph (n)(2)(i) or (ii) of this section,
compliance with the applicable provisions of the standard identified in
paragraph (n)(2)(i) or (ii) of this section shall constitute compliance
with the applicable provisions of this subpart with respect to that
waste management unit.
    (i) Subpart G of this part.
    (ii) A subpart of this part which requires compliance with
Secs. 63.132 through 63.147 of subpart G of this part (e.g., subpart U
of this part).
    (o) All terms in this subpart that define a period of time for
completion of required tasks (e.g., weekly, monthly, quarterly,
annual), unless specified otherwise in the section or paragraph that
imposes the requirement, refer to the standard calendar periods.
    (1) Notwithstanding time periods specified in this subpart for
completion of required tasks, such time periods may be changed by
mutual agreement between the owner or operator and the Administrator,
as specified in subpart A of this part (e.g., a period could begin on
the compliance date or another date, rather than on the first day of
the standard calendar period). For each time period that is changed by
agreement, the revised period shall remain in effect until it is
changed. A new request is not necessary for each recurring period.
    (2) Where the period specified for compliance is a standard
calendar period, if the initial compliance date occurs after the
beginning of the period, compliance shall be required according to the
schedule specified in paragraphs (o)(2)(i) or (o)(2)(ii) of this
section, as appropriate.
    (i) Compliance shall be required before the end of the standard
calendar period within which the compliance deadline occurs, if there
remain at least 3 days for tasks that must be performed weekly, at
least 2 weeks for tasks that must be performed monthly, at least 1
month for tasks that must be performed each quarter, or at least 3
months for tasks that must be performed annually; or
    (ii) In all other cases, compliance shall be required before the
end of the first full standard calendar period after the period within
which the initial compliance deadline occurs.
    (3) In all instances where a provision of this subpart requires
completion of a task during each of multiple successive periods, an
owner or operator may perform the required task at any time during the
specified period, provided that the task is conducted at a reasonable
interval after completion of the task during the previous period.
    31. Section 63.1312 is amended:
    a. By revising paragraph (a) and the definitions for
``Acrylonitrile butadiene styrene latex resin (ABS latex),''
``Aggregate batch vent stream,'' ``Batch process,'' ``Batch process
vent,'' ``Batch unit operation,'' ``Continuous process,'' ``Continuous
process vent,'' ``Continuous unit operation,'' ``Control device,''
``Emission point,'' ``Emulsion process,'' ``Group 1 batch process
vent,'' ``Group 1 wastewater stream,'' ``Heat exchange system,''
``Maintenance wastewater,'' ``Mass process,'' ``Material recovery
section,'' ``Organic hazardous air pollutant(s) (organic HAP),''
``Polymerization reaction section,'' ``Process unit,'' ``Process
vent,'' ``Product,'' ``Raw materials preparation section,'' ``Recovery
operations equipment,'' ``Steady-state conditions,'' ``Storage
vessel,'' ``Suspension process,'' and ``Thermoplastic product process
unit (TPPU),'';
    b. By removing the definitions of ``Average flow rate,'' ``Batch
cycle limitation,'' ``Solid state polymerization unit,'' and ``Year,'';
and
    c. By adding definitions for the terms ``Annual average batch vent
concentration,'' ``Annual average batch vent flow rate,'' ``Annual
average concentration,'' ``Annual average flow rate,'' ``Average batch
vent concentration,'' ``Average batch vent flow rate,'' ``Batch mass
input limitation,'' ``Batch mode,'' ``Combined vent stream,''
``Construction,'' ``Continuous mode,'' ``Continuous record,''
``Continuous recorder,'' ``Equipment,'' ``Existing affected source,''
``Existing process unit,'' ``Flexible operation unit,'' ``Highest-HAP
recipe,'' ``Initial start-up,'' ``Maximum true vapor pressure,''
``Multicomponent system,'' ``Net positive heating value,'' ``New
affected source,'' ``New process unit,'' ``On-site or On site,''
``Operating day,'' ``Recipe,'' ``Reconstruction,'' ``Recovery device,''
``Residual,'' ``Shutdown,'' ``Solid state polymerization process,''
``Start-up,'' ``Total resource effectiveness index value or TRE index
value,'' ``Vent stream,'' ``Waste management unit,'' ``Wastewater,''
and ``Wastewater stream,'' to read as follows:

Sec. 63.1312   Definitions.

    (a) The following terms used in this subpart shall have the meaning
given them in Sec. 63.2, Sec. 63.101, Sec. 63.111, Sec. 63.161, or the
Act, as specified after each term:

Act (Sec. 63.2)
Administrator (Sec. 63.2)
Automated monitoring and recording system (Sec. 63.111)
Boiler (Sec. 63.111)
Bottoms receiver (Sec. 63.161)
By compound (Sec. 63.111)
By-product (Sec. 63.101)
Car-seal (Sec. 63.111)
Closed-vent system (Sec. 63.111)
Combustion device (Sec. 63.111)
Commenced (Sec. 63.2)
Compliance date (Sec. 63.2)
Connector (Sec. 63.161)
Continuous monitoring system (Sec. 63.2)
Distillation unit (Sec. 63.111)
Duct work (Sec. 63.161)
Emission limitation (Section 302(k) of the Act)
Emission standard (Sec. 63.2)
Emissions averaging (Sec. 63.2)
EPA (Sec. 63.2)
Equipment leak (Sec. 63.101)
External floating roof (Sec. 63.111)
Fill or filling (Sec. 63.111)
First attempt at repair (Sec. 63.111)
Fixed capital cost (Sec. 63.2)
Flame zone (Sec. 63.111)
Floating roof (Sec. 63.111)
Flow indicator (Sec. 63.111)
Fuel gas system (Sec. 63.101)
Halogens and hydrogen halides (Sec. 63.111)
Hard-piping (Sec. 63.111)
Hazardous air pollutant (Sec. 63.2)
Impurity (Sec. 63.101)
In organic hazardous air pollutant service or in organic HAP service
(Sec. 63.161)
Incinerator (Sec. 63.111)
Instrumentation system (Sec. 63.161)
Internal floating roof (Sec. 63.111)
Lesser quantity (Sec. 63.2)
Major source (Sec. 63.2)
Malfunction (Sec. 63.2)
Open-ended valve or line (Sec. 63.161)
Operating permit (Sec. 63.101)
Organic monitoring device (Sec. 63.111)
Owner or operator (Sec. 63.2)
Performance evaluation (Sec. 63.2)
Performance test (Sec. 63.2)
Permitting authority (Sec. 63.2)

[[Page 11664]]

Plant site (Sec. 63.101)
Potential to emit (Sec. 63.2)
Pressure release (Sec. 63.161)
Primary fuel (Sec. 63.111)
Process heater (Sec. 63.111)
Process unit shutdown (Sec. 63.161)
Process wastewater (Sec. 63.101)
Process wastewater stream (Sec. 63.111)
Reactor (Sec. 63.111)
Recapture device (Sec. 63.101)
Research and development facility (Sec. 63.101)
Routed to a process or route to a process (Sec. 63.161)
Run (Sec. 63.2)
Secondary fuel (Sec. 63.111)
Sensor (Sec. 63.161)
Specific gravity monitoring device (Sec. 63.111)
Start-up, shutdown, and malfunction plan (Sec. 63.101)
State (Sec. 63.2)
Stationary Source (Sec. 63.2)
Surge control vessel (Sec. 63.161)
Temperature monitoring device (Sec. 63.111)
Test method (Sec. 63.2)
Treatment process (Sec. 63.111)
Unit operation (Sec. 63.101)
Visible emission (Sec. 63.2)

(b) * * *
    Acrylonitrile butadiene styrene latex resin (ABS latex) means ABS
produced through an emulsion process; however, the product is not
coagulated or dried as typically occurs in an emulsion process.
* * * * *
    Aggregate batch vent stream means a gaseous emission stream
containing only the exhausts from two or more batch process vents that
are ducted, hardpiped, or otherwise connected together for a continuous
flow .
* * * * *
    Annual average batch vent concentration is determined using
Equation 1, as described in Sec. 63.1323(h)(2) for halogenated
compounds.
    Annual average batch vent flow rate is determined by the procedures
in Sec. 63.1323(e)(3).
    Annual average concentration, as used in the wastewater provisions,
means the flow-weighted annual average concentration, as determined
according to the procedures specified in Sec. 63.144(b), with the
exceptions noted in Sec. 63.1330, for the purposes of this subpart.
    Annual average flow rate, as used in the wastewater provisions,
means the annual average flow rate, as determined according to the
procedures specified in Sec. 63.144(c), with the exceptions noted in
Sec. 63.1330, for the purposes of this subpart.
    Average batch vent concentration is determined by the procedures in
Sec. 63.1323(b)(5)(iii) for HAP concentrations and is determined by the
procedures in Sec. 63.1323(h)(1)(iii) for organic compounds containing
halogens and hydrogen halides.
    Average batch vent flow rate is determined by the procedures in
Sec. 63.1323 (e)(1) and (e)(2).
* * * * *
    Batch mass input limitation means an enforceable restriction on the
total mass of HAP or material that can be input to a batch unit
operation in one year.
    Batch mode means the discontinuous bulk movement of material
through a unit operation. Mass, temperature, concentration, and other
properties may vary with time. For a unit operation operated in a batch
mode (i.e., batch unit operation), the addition of material and
withdrawal of material do not typically occur simultaneously.
    Batch process means, for the purposes of this subpart, a process
where the reactor(s) is operated in a batch mode.
    Batch process vent means a process vent with annual organic HAP
emissions greater than 225 kilograms per year from a batch unit
operation within an affected source. Annual organic HAP emissions are
determined as specified in Sec. 63.488(b) at the location specified in
Sec. 63.1323(a)(2).
    Batch unit operation means a unit operation operated in a batch
mode.
    Combined vent stream, as used in reference to batch process vents,
continuous process vents, and aggregate batch vent streams, means the
emissions from a combination of two or more of the aforementioned types
of process vents. The primary occurrence of a combined vent stream is
the combined emissions from a continuous process vent and a batch
process vent.
* * * * *
    Construction means the on-site fabrication, erection, or
installation of an affected source. Construction also means the on-site
fabrication, erection, or installation of a process unit or combination
of process units which subsequently becomes an affected source or part
of an affected source, due to a change in primary product.
    Continuous mode means the continuous movement of material through a
unit operation. Mass, temperature, concentration, and other properties
typically approach steady-state conditions. For a unit operation
operated in a continuous mode (i.e., continuous unit operation), the
simultaneous addition of raw material and withdrawal of product is
typical.
    Continuous process means, for the purposes of this subpart, a
process where the reactor(s) is operated in a continuous mode.
    Continuous process vent means a process vent containing greater
than 0.005 weight percent total organic HAP from a continuous unit
operation within an affected source. The total organic HAP weight
percent is determined after the last recovery device, as described in
Sec. 63.115(a), and is determined as specified in Sec. 63.115(c).
    Continuous record means documentation, either in hard copy or
computer readable form, of data values measured at least once every 15
minutes and recorded at the frequency specified in Sec. 63.1335(d) or
Sec. 63.1335(h).
    Continuous recorder means a data recording device that either
records an instantaneous data value at least once every 15 minutes or
records 1-hour or more frequent block average values.
    Continuous unit operation means a unit operation operated in a
continuous mode.
    Control device is defined in Sec. 63.111, except that the term
``continuous process vents subject to Sec. 63.1315'' shall apply
instead of the term ``process vents,'' for the purpose of this subpart.
* * * * *
    Emission point means an individual continuous process vent, batch
process vent, storage vessel, waste management unit, equipment leak,
heat exchange system, or process contact cooling tower, or equipment
subject to Sec. 63.149.
    Emulsion process means a process where the monomer(s) is dispersed
in droplets throughout the water phase with the aid of an emulsifying
agent such as soap or a synthetic emulsifier. The polymerization occurs
either within the emulsion droplet or in the aqueous phase.
    Equipment means, for the purposes of the provisions in Sec. 63.1331
and the requirements in subpart H that are referred to in Sec. 63.1331,
each pump, compressor, agitator, pressure relief device, sampling
connection system, open-ended valve or line, valve, connector, surge
control vessel, bottoms receiver, and instrumentation system in organic
hazardous air pollutant service; and any control devices or systems
required by subpart H.
    Existing affected source is defined in Sec. 63.1310(a)(3).
    Existing process unit means any process unit that is not a new
process unit.
* * * * *
    Flexible operation unit means a process unit that manufactures
different chemical products, polymers, or resins periodically by
alternating raw materials or operating conditions. These units are also
referred to as campaign plants or blocked operations.
    Group 1 batch process vent means a batch process vent releasing
annual organic HAP emissions greater than the level specified in
Sec. 63.1323(d) and with

[[Page 11665]]

a cutoff flow rate, calculated in accordance with Sec. 63.1323(f),
greater than or equal to the annual average batch vent flow rate.
Annual organic HAP emissions and annual average batch vent flow rate
are determined at the exit of the batch unit operation, as described in
Sec. 63.1323(a)(2). Annual organic HAP emissions are determined as
specified in Sec. 63.1323(b), and annual average batch vent flow rate
is determined as specified in Sec. 63.1323(e).
* * * * *
    Group 1 wastewater stream means a wastewater stream consisting of
process wastewater from an existing or new affected source that meets
the criteria for Group 1 status in Sec. 63.132(c) and/or that meets the
criteria for Group 1 status in Sec. 63.132(d), with the exceptions
listed in Sec. 63.1330(b)(8) for the purposes of this subpart (i.e.,
for organic HAP listed on Table 6 of this subpart only).
* * * * *
    Heat exchange system means any cooling tower system or once-through
cooling water system (e.g., river or pond water) designed and intended
to operate to not allow contact between the cooling medium and process
fluid or gases (i.e., a noncontact system). A heat exchange system can
include more than one heat exchanger and can include recirculating or
once-through cooling systems.
    Highest-HAP recipe for a product means the recipe of the product
with the highest total mass of HAP charged to the reactor during the
production of a single batch of product.
    Initial start-up means the first time a new or reconstructed
affected source begins production of a thermoplastic product, or, for
equipment added or changed as described in Sec. 63.1310(i), the first
time the equipment is put into operation to produce a thermoplastic
product. Initial start-up does not include operation solely for testing
equipment. Initial start-up does not include subsequent start-ups of an
affected source or portion thereof following malfunctions or shutdowns
or following changes in product for flexible operation units or
following recharging of equipment in batch operation. Further, for
purposes of Sec. 63.1311 and Sec. 63.1331, initial start-up does not
include subsequent start-ups of affected sources or portions thereof
following malfunctions or process unit shutdowns.
    Maintenance wastewater is defined in Sec. 63.101, except that the
term ``thermoplastic product process unit'' shall apply wherever the
term ``chemical manufacturing process unit'' is used. Further, the
generation of wastewater from the routine rinsing or washing of
equipment in batch operation between batches is not maintenance
wastewater, but is considered to be process wastewater, for the
purposes of this subpart.
    Mass process means a polymerization process carried out through the
use of thermal energy . Mass processes do not utilize emulsifying or
suspending agents, but may utilize catalysts or other additives.
    Material recovery section means, for PET plants, the equipment that
recovers unreacted ethylene glycol or by-product methanol from any
process section for return to the TPPU, or sale, or the equipment that
separates materials containing unreacted ethylene glycol or by-product
methanol from any process section for off-site purification or
treatment with the intent to recover ethylene glycol and/or methanol
for reuse. For polystyrene plants, material recovery section means the
equipment that recovers unreacted styrene from any process section for
return to the TPPU or sale, or the equipment that separates materials
containing unreacted styrene from any process section for off-site
purification or treatment with the intent to recover styrene for reuse.
Equipment used to store recovered materials (i.e., ethylene glycol,
methanol, or styrene) is not included. Equipment designed to recover or
separate materials from the polymer product is to be included in this
process section, provided that at the time of initial compliance some
of the unreacted or by-product material is recovered for return to the
TPPU, or sale, or some of the separated material is sent for off-site
purification or treatment with the intent to recover the unreacted or
by-product material for reuse. Otherwise, such equipment is to be
assigned to one of the other process sections, as appropriate. If
equipment is used to recover unreacted or by-product material and
return it directly to the same piece of process equipment from which it
was emitted, then said recovery equipment is considered part of the
process section that contains the process equipment. On the other hand,
if equipment is used to recover unreacted or by-product material and
return it to a different piece of process equipment in the same process
section, said recovery equipment is considered part of a material
recovery section. Equipment used for the on-site recovery of ethylene
glycol from PET plants, however, is not included in the material
recovery section; such equipment is to be included in the
polymerization reaction section. Equipment used for the on-site
recovery of both ethylene glycol and any other materials from PET
plants is not included in the material recovery section; this equipment
is to be included in the polymerization reaction section.
    Maximum true vapor pressure is defined in Sec. 63.111, except that
the terms ``transfer'' or ``transferred'' shall not apply for purposes
of this subpart.
* * * * *
    Multicomponent system means, as used in conjunction with batch
process vents, a stream whose liquid and/or vapor contains more than
one compound.
    Net positive heating value means the difference between the heat
value of the recovered chemical stream and the minimum heat value
required to ensure a stable flame in the combustion device, when the
heat value of the recovered chemical stream is less than the minimum
heat value required to ensure a stable flame. This difference must have
a positive value when used in the context of ``recovering chemicals for
fuel value'' (e.g., in the definition of ``recovery device'' in this
section).
    New affected source is defined in Sec. 63.1310(a)(4).
    New process unit means a process unit for which the construction or
reconstruction commenced after March 29, 1995.
* * * * *
    On-site or On site means, with respect to records required to be
maintained by this subpart or required by another subpart referenced by
this subpart, that records are stored at a location within a major
source which encompasses the affected source. On-site includes, but is
not limited to, storage at the affected source or TPPU to which the
records pertain, or storage in central files elsewhere at the major
source.
    Operating day means the period defined by the owner or operator in
the Notification of Compliance Status required by Sec. 63.1335(e)(5).
The operating day is the period for which daily average monitoring
values and batch cycle daily average monitoring values are determined.
    Organic hazardous air pollutant(s) (organic HAP) means one or more
of the chemicals listed in Table 6 of this subpart or any other
chemical which is:
    (1) Knowingly produced or introduced into the manufacturing process
other than as an impurity; and
    (2) Listed in Table 2 of subpart F of this part.
* * * * *
    Polymerization reaction section means the equipment designed to
cause monomer(s) to react to form polymers, including equipment
designed primarily to cause the formation of short polymer

[[Page 11666]]

chains (e.g., oligomers or low molecular weight polymers), but not
including equipment designed to prepare raw materials for
polymerization (e.g., esterification vessels). For the purposes of
these standards, the polymerization reaction section begins with the
equipment used to transfer the materials from the raw materials
preparation section and ends with the last vessel in which
polymerization occurs. Equipment used for the on-site recovery of
ethylene glycol from PET plants is included in this process section,
rather than in the material recovery process section.
* * * * *
    Process unit means a collection of equipment assembled and
connected by hardpiping or duct work, used to process raw materials and
to manufacture a product.
    Process vent means a gaseous emission stream from a unit operation
that is discharged to the atmosphere either directly or after passing
through one or more control, recovery, or recapture devices. Unit
operations that may have process vents are condensers, distillation
units, reactors, or other unit operations within the TPPU. Process
vents exclude pressure releases, gaseous streams routed to a fuel gas
system(s), and leaks from equipment regulated under Sec. 63.1331. A
gaseous emission stream is no longer considered to be a process vent
after the stream has been controlled and monitored in accordance with
the applicable provisions of this subpart.
    Product means a polymer produced using the same monomers and
varying in additives (e.g., initiators, terminators, etc.); catalysts;
or in the relative proportions of monomers, that is manufactured by a
process unit. With respect to polymers, more than one recipe may be
used to produce the same product. As an example, styrene acrylonitrile
resin and methyl methacrylate butadiene styrene resin each represent a
different product. Product also means a chemical that is not a polymer,
that is manufactured by a process unit. By-products, isolated
intermediates, impurities, wastes, and trace contaminants are not
considered products.
    Raw materials preparation section means the equipment at a polymer
manufacturing plant designed to prepare raw materials, such as monomers
and solvents, for polymerization. For the purposes of the standards in
this subpart, this process section includes the equipment used to
transfer raw materials from storage and/or the equipment used to
transfer recovered material from the material recovery process sections
to the raw material preparation section, and ends with the last piece
of equipment that prepares the material for polymerization. The raw
materials preparation section may include equipment that is used to
purify, dry, or otherwise treat raw materials or raw and recovered
materials together; to activate catalysts; or to promote esterification
including the formation of some short polymer chains (oligomers). The
raw materials preparation section does not include equipment that is
designed primarily to accomplish the formation of oligomers, the
treatment of recovered materials alone, or the storage of raw or
recovered materials.
    Recipe means a specific composition, from among the range of
possible compositions that may occur within a product, as defined in
this section. A recipe is determined by the proportions of monomers
and, if present, other reactants and additives that are used to make
the recipe. For example, acrylonitrile butadiene styrene latex resin
(ABS latex) without additives; ABS latex with an additive; and ABS
latex with different proportions of acrylonitrile to butadiene are all
different recipes of the same product, ABS latex.
    Reconstruction means the replacement of components of an affected
source or of a previously unaffected stationary source that becomes an
affected source as a result of the replacement, to such an extent that:
    (1) The fixed capital cost of the new components exceeds 50 percent
of the fixed capital cost that would be required to construct a
comparable new source; and
    (2) It is technologically and economically feasible for the
reconstructed source to meet the provisions of this subpart.
    Recovery device means:
    (1) An individual unit of equipment capable of and normally used
for the purpose of recovering chemicals for:
    (i) Use;
    (ii) Reuse;
    (iii) Fuel value (i.e., net heating value); or
    (iv) For sale for use, reuse, or fuel value (i.e., net heating
value).
    (2) Examples of equipment that may be recovery devices include
absorbers, carbon adsorbers, condensers, oil-water separators or
organic-water separators, or organic removal devices such as decanters,
strippers, or thin-film evaporation units. For the purposes of the
monitoring, recordkeeping, or reporting requirements of this subpart,
recapture devices are considered recovery devices.
    Recovery operations equipment means the equipment used to separate
the components of process streams. Recovery operations equipment
includes distillation units, condensers, etc. Equipment used for
wastewater treatment and recovery or recapture devices used as control
devices shall not be considered recovery operations equipment.
    Residual is defined in Sec. 63.111, except that when the definition
in Sec. 63.111 uses the term ``Table 9 compounds,'' the term ``organic
HAP listed in Table 6 of subpart JJJ'' shall apply for purposes of this
subpart.
    Shutdown means for purposes including, but not limited to, periodic
maintenance, replacement of equipment, or repair, the cessation of
operation of an affected source, a TPPU(s) within an affected source, a
waste management unit or unit operation within an affected source, or
equipment required or used to comply with this subpart, or the emptying
or degassing of a storage vessel. For purposes of the wastewater
provisions of Sec. 63.1330, shutdown does not include the routine
rinsing or washing of equipment in batch operation between batches. For
purposes of the batch process vent provisions in Secs. 63.1321 through
63.1327, the cessation of equipment in batch operation is not a
shutdown, unless the equipment undergoes maintenance, is replaced, or
is repaired.
    Solid state polymerization process means a unit operation which,
through the application of heat, furthers the polymerization (i.e.,
increases the intrinsic viscosity) of polymer chips.
    Start-up means the setting into operation of an affected source, a
TPPU(s) within an affected source, a waste management unit or unit
operation within an affected source, or equipment required or used to
comply with this subpart, or a storage vessel after emptying and
degassing. For both continuous and batch processes, start-up includes
initial start-up and operation solely for testing equipment. For both
continuous and batch processes, start-up does not include the
recharging of equipment in batch operation. For continuous processes,
start-up includes transitional conditions due to changes in product for
flexible operation units. For batch processes, start-up does not
include transitional conditions due to changes in product for flexible
operation units.
    Steady-state conditions means that all variables (temperatures,
pressures, volumes, flow rates, etc.) in a process do

[[Page 11667]]

not vary significantly with time; minor fluctuations about constant
mean values may occur.
    Storage vessel means a tank or other vessel that is used to store
liquids that contain one or more organic HAP. Storage vessels do not
include:
    (1) Vessels permanently attached to motor vehicles such as trucks,
railcars, barges, or ships;
    (2) Pressure vessels designed to operate in excess of 204.9
kilopascals and without emissions to the atmosphere;
    (3) Vessels with capacities smaller than 38 cubic meters;
    (4) Vessels and equipment storing and/or handling material that
contains no organic HAP and/or organic HAP as impurities only;
    (5) Wastewater storage tanks; and
    (6) Surge control vessels and bottoms receivers.
* * * * *
    Suspension process means a polymerization process where the
monomer(s) is in a state of suspension, with the help of suspending
agents, in a medium other than water (typically an organic solvent).
The resulting polymers are not soluble in the reactor medium. .
* * * * *
    Thermoplastic product process unit (TPPU) means a collection of
equipment assembled and connected by hard-piping or ductwork, used to
process raw materials and to manufacture a thermoplastic product as its
primary product. This collection of equipment includes unit operations;
recovery operations equipment, process vents; equipment identified in
Sec. 63.149; storage vessels, as determined in Sec. 63.1310(g); and the
equipment that is subject to the equipment leak provisions as specified
in Sec. 63.1331. Utilities, lines and equipment not containing process
fluids, and other non-process lines, such as heating and cooling
systems which do not combine their materials with those in the
processes they serve, are not part of the thermoplastic product process
unit. A thermoplastic product process unit consists of more than one
unit operation.
* * * * *
    Total resource effectiveness index value or TRE index value means a
measure of the supplemental total resource requirement per unit
reduction organic HAP associated with a continuous process vent stream,
based on vent stream flow rate, emission rate of organic HAP, net
heating value, and corrosion properties (whether or not the continuous
process vent stream contains halogenated compounds), as quantified by
the equations given under Sec. 63.115.
    Vent stream, as used in reference to batch process vents,
continuous process vents, and aggregate batch vent streams, means the
emissions from one or more process vents.
    Waste management unit is defined in Sec. 63.111, except that where
the definition in Sec. 63.111 uses the term ``chemical manufacturing
process unit,'' the term ``TPPU'' shall apply for purposes of this
subpart.
    Wastewater means water that:
    (1) Contains either:
    (i) An annual average concentration of organic HAP listed on Table
6 of this subpart, except for ethylene glycol, of at least 5 parts per
million by weight and has an annual average flow rate of 0.02 liter per
minute or greater; or
    (ii) An annual average concentration of organic HAP listed on Table
6 of this subpart, except for ethylene glycol, of at least 10,000 parts
per million by weight at any flow rate; and
    (2) Is discarded from a TPPU that is part of an affected source.
Wastewater is process wastewater or maintenance wastewater.
    Wastewater stream means a stream that contains wastewater as
defined in this section.
    32. Section 63.1313 is amended by revising paragraph (a)
introductory text, (a)(2), (b), and (c); and adding paragraph (d), to
read as follows:

Sec. 63.1313   Emission standards.

    (a) Except as allowed under paragraphs (b) through (d) of this
section, the owner or operator of an existing or new affected source
shall comply with the provisions in:
* * * * *
    (2) Section 63.1315, or Secs. 63.1316 through 63.1320, as
appropriate, for continuous process vents;
* * * * *
    (b) When emissions of different kinds (i.e., emissions from
continuous process vents subject to either Sec. 63.1315 or
Secs. 63.1316 through 63.1320, batch process vents, aggregate batch
vent streams, storage vessels, process wastewater, and/or in-process
equipment subject to Sec. 63.149) are combined, and at least one of the
emission streams would be classified as Group 1 in the absence of
combination with other emission streams, the owner or operator shall
comply with the requirements of either paragraph (b)(1) or (b)(2) of
this section, as appropriate. For purposes of this paragraph (b),
combined emission streams containing one or more batch process vents
and containing one or more continuous process vents subject to
Sec. 63.1315, Sec. 63.1316(b)(1)(i)(A), Sec. 63.1316(b)(1)(ii),
Sec. 63.1316(b)(2)(i), Sec. 63.1316(b)(2)(ii), or Sec. 63.1316(c)(1),
excluding Sec. 63.1316(c)(1)(ii), may comply with either paragraph
(b)(1) or (b)(2) of this section, as appropriate. For purposes of this
paragraph (b), the owner or operator of an affected source with
combined emission streams containing one or more batch process vents
but not containing one or more continuous process vents subject to
Sec. 63.1315, Sec. 63.1316(b)(1)(i)(A), Sec. 63.1316(b)(1)(ii),
Sec. 63.1316(b)(2)(i), Sec. 63.1316(b)(2)(ii), or Sec. 63.1316(c)(1),
excluding Sec. 63.1316(c)(1)(ii), shall comply with paragraph (b)(3) of
this section.
    (1) Comply with the applicable requirements of this subpart for
each kind of emission in the stream as specified in paragraphs (a)(1)
through (a)(7) of this section.
    (2) Comply with the first set of requirements, identified in
paragraphs (b)(2)(i) through (b)(2)(vi) of this section, which applies
to any individual emission stream that is included in the combined
stream, where either that emission stream would be classified as Group
1 in the absence of combination with other emission streams, or the
owner or operator chooses to consider that emission stream to be Group
1 for purposes of this paragraph. Compliance with the first applicable
set of requirements identified in paragraphs (b)(2)(i) through
(b)(2)(vi) of this section constitutes compliance with all other
requirements in paragraphs (b)(2)(i) through (b)(2)(vi) of this section
applicable to other types of emissions in the combined stream.
    (i) The requirements of this subpart for Group 1 continuous process
vents subject to Sec. 63.1315, including applicable monitoring,
recordkeeping, and reporting;
    (ii) The requirements of Sec. 63.1316(b)(1)(i)(A),
Sec. 63.1316(b)(1)(ii), Sec. 63.1316(b)(2)(i), Sec. 63.1316(b)(2)(ii),
or Sec. 63.1316(c)(1), excluding Sec. 63.1316(c)(1)(ii), as
appropriate, for control of emissions from continuous process vents
subject to the control requirements of Sec. 63.1316, including
applicable monitoring, recordkeeping, and reporting requirements;
    (iii) The requirements of Sec. 63.119(e), as specified in
Sec. 63.1314, for control of emissions from Group 1 storage vessels,
including applicable monitoring, recordkeeping, and reporting;
    (iv) The requirements of Sec. 63.139, as specified in Sec. 63.1330,
for control devices used to control emissions from waste management
units, including applicable monitoring, recordkeeping, and reporting;
    (v) The requirements of Sec. 63.139, as specified in Sec. 63.1330,
for closed vent

[[Page 11668]]

systems for control of emissions from in-process equipment subject to
Sec. 63.149, as specified in Sec. 63.1330, including applicable
monitoring, recordkeeping, and reporting; or
    (vi) The requirements of this subpart for aggregate batch vent
streams subject to Sec. 63.1321(c), including applicable monitoring,
recordkeeping, and reporting.
    (3) The owner or operator of an affected source with combined
emission streams containing one or more batch process vents but not
containing one or more continuous process vents subject to
Sec. 63.1315, Sec. 63.1316(b)(1)(i)(A), Sec. 63.1316(b)(1)(ii),
Sec. 63.1316(b)(2)(i), Sec. 63.1316(b)(2)(ii), or Sec. 63.1316(c)(1),
excluding Sec. 63.1316(c)(1)(ii), shall comply with paragraph (b)(3)(i)
and (b)(3)(ii) of this section.
    (i) The owner or operator of the affected source shall comply with
Sec. 63.1321 for the batch process vent(s).
    (ii) The owner or operator of the affected source shall comply with
either paragraph (b)(1) or (b)(2) of this section, as appropriate, for
the remaining emission streams.
    (c) Instead of complying with Secs. 63.1314, 63.1315, 63.1316
through 63.1320, 63.1321, and 63.1330, the owner or operator of an
existing affected source may elect to control any or all of the storage
vessels, batch process vents, aggregate batch vent streams, continuous
process vents, and wastewater streams and associated waste management
units within the affected source to different levels using an emissions
averaging compliance approach that uses the procedures specified in
Sec. 63.1332. The restrictions concerning which emission points may be
included in an emissions average, including how many emission points
may be included, are specified in Sec. 63.1332(a)(1). An owner or
operator electing to use emissions averaging shall still comply with
the provisions of Secs. 63.1314, 63.1315, 63.1316 through 63.1320,
63.1321, and 63.1330 for affected source emission points not included
in the emissions average.
    (d) A State may decide not to allow the use of the emissions
averaging compliance approach specified in paragraph (c) of this
section.
    33. Section 63.1314 is amended by revising paragraphs (a)
introductory text, (a)(1) through (a)(3), (a)(5) through (a)(16), (b)
introductory text, and (c); and adding paragraphs (a)(17) and (b)(3),
to read as follows:

Sec. 63.1314  Storage vessel provisions.

    (a) This section applies to each storage vessel that is assigned to
an affected source, as determined by Sec. 63.1310(g). Except as
provided in paragraphs (b) through (d) of this section, the owner or
operator of an affected source shall comply with the requirements of
Secs. 63.119 through 63.123 and 63.148 for those storage vessels, with
the differences noted in paragraphs (a)(1) through (a)(17) of this
section for the purposes of this subpart.
    (1) When the term ``storage vessel'' is used in Secs. 63.119
through 63.123, the definition of this term in Sec. 63.1312 shall apply
for the purposes of this subpart.
    (2) When the term ``Group 1 storage vessel'' is used in
Secs. 63.119 through 63.123, the definition of this term in
Sec. 63.1312 shall apply for the purposes of this subpart.
    (3) When the term ``Group 2 storage vessel'' is used in
Secs. 63.119 through 63.123, the definition of this term in
Sec. 63.1312 shall apply for the purposes of this subpart.
* * * * *
    (5) When December 31, 1992, is referred to in Sec. 63.119, March
29, 1995 shall apply instead, for the purposes of this subpart.
    (6) When April 22, 1994, is referred to in Sec. 63.119, September
12, 1996 shall apply instead, for the purposes of this subpart.
    (7) Each owner or operator of an affected source shall comply with
this paragraph (a)(7) instead of Sec. 63.120(d)(1)(ii) for the purposes
of this subpart. If the control device used to comply with
Sec. 63.119(e) is also used to comply with any of the requirements
found in Sec. 63.1315, Sec. 63.1316, Sec. 63.1322, or Sec. 63.1330, the
performance test required in or accepted by the applicable requirements
of Secs. 63.1315, 63.1316, 63.1322, and 63.1330 is acceptable for
demonstrating compliance with Sec. 63.119(e) for the purposes of this
subpart. The owner or operator is not required to prepare a design
evaluation for the control device as described in Sec. 63.120(d)(1)(i),
if the performance test meets the criteria specified in paragraphs
(a)(7)(i) and (a)(7)(ii) of this section.
    (i) The performance test demonstrates that the control device
achieves greater than or equal to the required control efficiency
specified in Sec. 63.119(e)(1) or Sec. 63.119(e)(2), as applicable; and
    (ii) The performance test is submitted as part of the Notification
of Compliance Status required by Sec. 63.1335(e)(5).
    (8) When the term ``operating range'' is used in Sec. 63.120(d)(3),
the term ``level'' shall apply instead, for the purposes of this
subpart.
    (9) For purposes of this subpart, the monitoring plan required by
Sec. 63.120(d)(2) shall specify for which control devices the owner or
operator has selected to follow the procedures for continuous
monitoring specified in Sec. 63.1334. For those control devices for
which the owner or operator has selected to not follow the procedures
for continuous monitoring specified in Sec. 63.1334, the monitoring
plan shall include a description of the parameter or parameters to be
monitored to ensure that the control device is being properly operated
and maintained, an explanation of the criteria used for selection of
that parameter (or parameters), and the frequency with which monitoring
will be performed (e.g., when the liquid level in the storage vessel is
being raised), as specified in Sec. 63.120(d)(2)(i).
    (10) For purposes of this subpart, the monitoring plan required by
Sec. 63.122(b) shall be included in the Notification of Compliance
Status required by Sec. 63.1335(e)(5).
    (11) When the Notification of Compliance Status requirements
contained in Sec. 63.152(b) are referred to in Secs. 63.120, 63.122,
and 63.123, the Notification of Compliance Status requirements
contained in Sec. 63.1335(e)(5) shall apply for the purposes of this
subpart.
    (12) When the Periodic Report requirements contained in
Sec. 63.152(c) are referred to in Secs. 63.120, 63.122, and 63.123, the
Periodic Report requirements contained in Sec. 63.1335(e)(6) shall
apply for the purposes of this subpart.
    (13) When other reports as required in Sec. 63.152(d) are referred
to in Sec. 63.122, the reporting requirements contained in
Sec. 63.1335(e)(7) shall apply for the purposes of this subpart.
    (14) When the Initial Notification requirements contained in
Sec. 63.151(b) are referred to in Sec. 63.122, the owner or operator of
an affected source subject to this subpart need not comply for the
purposes of this subpart.
    (15) When the determination of equivalence criteria in
Sec. 63.102(b) is referred to in Sec. 63.121(a), the provisions in
Sec. 63.6(g) shall apply for the purposes of this subpart.
    (16) When Sec. 63.119(a) requires compliance according to the
schedule provisions in Sec. 63.100, owners and operators of affected
sources shall instead comply with the requirements in
Secs. 63.119(a)(1) through 63.119(a)(4) by the compliance date for
storage vessels, which is specified in Sec. 63.1311.
    (17) In Sec. 63.120(e)(1), instead of the reference to
Sec. 63.11(b), the requirements of Sec. 63.1333(e) shall apply.
    (b) Owners or operators of Group 1 storage vessels that are
assigned to a new affected source producing SAN

[[Page 11669]]

using a continuous process shall control emissions to the levels
indicated in paragraphs (b)(1) and (b)(2) of this section.
* * * * *
    (3) For all other storage vessels designated as Group 1 storage
vessels, emissions shall be controlled to the level designated in
Sec. 63.119.
    (c) Owners or operators of Group 1 storage vessels that are
assigned to a new or existing affected source producing ASA/AMSAN shall
control emissions by at least 98 percent relative to uncontrolled
emissions.
* * * * *
    34. Section 63.1315 is amended by revising paragraphs (a) (1)
through (4), (a)(9) through (a)(17), (b) introductory text, (b)(1)(ii),
(c), and (d), to read as follows:

Sec. 63.1315  Continuous process vents provisions.

    (a) * * *
    (1) When the term ``process vent'' is used in Secs. 63.113 through
63.118, the term ``continuous process vent,'' and the definition of
this term in Sec. 63.1312 shall apply for the purposes of this subpart.
    (2) When the term ``Group 1 process vent'' is used in Secs. 63.113
through 63.118, the term ``Group 1 continuous process vent,'' and the
definition of this term in Sec. 63.1312 shall apply for the purposes of
this subpart.
    (3) When the term ``Group 2 process vent'' is used in Secs. 63.113
through 63.118, the term ``Group 2 continuous process vent,'' and the
definition of this term in Sec. 63.1312 shall apply for the purposes of
this subpart.
    (4) When December 31, 1992 is referred to in Sec. 63.113, apply the
date March 29, 1995, for the purposes of this subpart.
* * * * *
    (9) When Sec. 63.114(e) specifies that an owner or operator shall
submit the information required in Sec. 63.152(b) in order to establish
the parameter monitoring range, the owner or operator of an affected
source shall comply with the provisions of Sec. 63.1334 for
establishing the parameter monitoring level and shall comply with
Sec. 63.1335(e)(5) for purposes of reporting information related to
establishment of the parameter monitoring level for purposes of this
subpart. Further, the term ``level'' shall apply when the term
``range'' is used in Secs. 63.114, 63.117, and 63.118.
    (10) When reports of process changes are required under Sec. 63.118
(g), (h), (i), or (j), paragraphs (a)(10)(i) through (a)(10)(iv) of
this section shall apply for the purposes of this subpart. In addition,
for the purposes of this subpart, paragraph (a)(10)(v) of this section
applies, and Sec. 63.118(k) does not apply to owners or operators of
affected sources.
    (i) For the purposes of this subpart, whenever a process change, as
defined in Sec. 63.115(e), is made that causes a Group 2 continuous
process vent to become a Group 1 continuous process vent, the owner or
operator shall submit a report within 180 days after the process change
is made or with the next Periodic Report, whichever is later. A
description of the process change shall be submitted with the report of
the process change, and the owner or operator of the affected source
shall comply with the Group 1 provisions in Secs. 63.113 through 63.118
in accordance with Sec. 63.1310(i)(2)(ii).
    (ii) Whenever a process change, as defined in Sec. 63.115(e), is
made that causes a Group 2 continuous process vent with a TRE greater
than 4.0 to become a Group 2 continuous process vent with a TRE less
than 4.0, the owner or operator shall submit a report within 180 days
after the process change is made or with the next Periodic Report,
whichever is later. A description of the process change shall be
submitted with the report of the process change, and the owner or
operator shall comply with the provisions in Sec. 63.113(d) by the
dates specified in Sec. 63.481.
    (iii) Whenever a process change, as defined in Sec. 63.115(e), is
made that causes a Group 2 continuous process vent with a flow rate
less than 0.005 standard cubic meter per minute to become a Group 2
continuous process vent with a flow rate of 0.005 standard cubic meter
per minute or greater and a TRE index value less than or equal to 4.0,
the owner or operator shall submit a report within 180 days after the
process change is made or with the next Periodic Report, whichever is
later. A description of the process change shall be submitted with the
report of the process change, and the owner or operator shall comply
with the provisions in Sec. 63.113(d) by the dates specified in
Sec. 63.481.
    (iv) Whenever a process change, as defined in Sec. 63.115(e), is
made that causes a Group 2 continuous process vent with an organic HAP
concentration less than 50 parts per million by volume to become a
Group 2 continuous process vent with an organic HAP concentration of 50
parts per million by volume or greater and a TRE index value less than
or equal to 4.0, the owner or operator shall submit a report within 180
days after the process change is made or with the next Periodic Report,
whichever is later. A description of the process change shall be
submitted with the report of the process change, and the owner or
operator shall comply with the provisions in Sec. 63.113(d) by the
dates specified in Sec. 63.481.
    (v) The owner or operator is not required to submit a report of a
process change if one of the conditions listed in paragraphs
(a)(10)(v)(A), (a)(10)(v)(B), (a)(10)(v)(C), or (a)(10)(v)(D) of this
section is met.
    (A) The process change does not meet the definition of a process
change in Sec. 63.115(e);
    (B) The vent stream flow rate is recalculated according to
Sec. 63.115(e) and the recalculated value is less than 0.005 standard
cubic meter per minute;
    (C) The organic HAP concentration of the vent stream is
recalculated according to Sec. 63.115(e) and the recalculated value is
less than 50 parts per million by volume; or
    (D) The TRE index value is recalculated according to Sec. 63.115(e)
and the recalculated value is greater than 4.0, or for the affected
sources producing methyl methacrylate butadiene styrene resin the
recalculated value is greater than 6.7.
    (11) When the provisions of Sec. 63.116 (c)(3) and (c)(4) specify
that Method 18, 40 CFR part 60, appendix A shall be used, Method 18 or
Method 25A, 40 CFR part 60, appendix A may be used for the purposes of
this subpart. The use of Method 25A, 40 CFR part 60, appendix A shall
conform with the requirements in paragraphs (a)(11)(i) and (a)(11)(ii)
of this section.
    (i) The organic HAP used as the calibration gas for Method 25A, 40
CFR part 60, appendix A shall be the single organic HAP representing
the largest percent by volume of the emissions.
    (ii) The use of Method 25A, 40 CFR part 60, appendix A is
acceptable if the response from the high-level calibration gas is at
least 20 times the standard deviation of the response from the zero
calibration gas when the instrument is zeroed on the most sensitive
scale.
    (12) When Sec. 63.118, periodic reporting and recordkeeping
requirements, refers to Sec. 63.152(f), the recordkeeping requirements
in Sec. 63.1335(d) shall apply for purposes of this subpart.
    (13) If a batch process vent or aggregate batch vent stream is
combined with a continuous process vent, the owner or operator of the
affected source containing the combined vent stream shall comply with
paragraph (a)(13)(i); with paragraph (a)(13)(ii) and with paragraph
(a)(13) (iii) or (iv); or with paragraph (a)(13)(v) of this section, as
appropriate.

[[Page 11670]]

    (i) If a batch process vent or aggregate batch vent stream is
combined with a Group 1 continuous process vent prior to the combined
vent stream being routed to a control device, the owner or operator of
the affected source containing the combined vent stream shall comply
with the requirements in paragraph (a)(13)(i) (A) or (B) of this
section.
    (A) All requirements for a Group 1 process vent stream in
Secs. 63.113 through 63.118, except as otherwise provided in this
section. As specified in Sec. 63.1333(a)(1), performance tests shall be
conducted at maximum representative operating conditions. For the
purpose of conducting a performance test on a combined vent stream,
maximum representative operating conditions shall be when batch
emission episodes are occurring that result in the highest organic HAP
emission rate (for the combined vent stream) that is achievable during
one of the periods listed in Sec. 63.1333(a)(1)(i) or
Sec. 63.1333(a)(1)(ii), without causing any of the situations described
in paragraphs (a)(13)(i)(A) (1) through (3) to occur.
    (1) Causing damage to equipment.
    (2) Necessitating that the owner or operator make product that does
not meet an existing specification for sale to a customer; or
    (3) Necessitating that the owner or operator make product in excess
of demand.
    (B) Comply with the provisions in Sec. 63.1313(b)(1), as allowed
under Sec. 63.1313(b).
    (ii) If a batch process vent or aggregate batch vent stream is
combined with a continuous process vent prior to the combined vent
stream being routed to a recovery device, the TRE index value for the
combined vent stream shall be calculated at the exit of the last
recovery device. The TRE shall be calculated during periods when one or
more batch emission episodes are occurring that result in the highest
organic HAP emission rate (in the combined vent stream that is being
routed to the recovery device) that is achievable during the 6-month
period that begins 3 months before and ends 3 months after the TRE
calculation, without causing any of the situations described in
paragraphs (a)(13)(ii) (A) through (C) to occur.
    (A) Causing damage to equipment.
    (B) Necessitating that the owner or operator make product that does
not meet an existing specification for sale to a customer; or
    (C) Necessitating that the owner or operator make product in excess
of demand.
    (iii) If the combined vent stream described in paragraph
(a)(10)(ii) of this section meets the requirements in paragraphs
(a)(13)(iii)(A), (B), and (C) of this section, the combined vent stream
shall be subject to the requirements for Group 1 process vents in
Secs. 63.113 through 63.118, except as otherwise provided in this
section, as applicable. Performance tests for the combined vent stream
shall be conducted at maximum operating conditions, as described in
paragraph (a)(13)(i) of this section.
    (A) The TRE index value of the combined stream is less than or
equal to 1.0;
    (B) The flow rate of the combined vent stream is greater than or
equal to 0.005 standard cubic meter per minute; and
    (C) The total organic HAP concentration is greater than or equal to
50 parts per million by volume for the combined vent stream.
    (iv) If the combined vent stream described in paragraph (a)(10)(ii)
of this section meets the requirements in paragraph (a)(13)(iv)(A),
(B), or (C) of this section, the combined vent stream shall be subject
to the requirements for Group 2 process vents in Secs. 63.113 through
63.118, except as otherwise provided in this section, as applicable.
    (A) The TRE index value of the combined vent stream is greater than
1.0;
    (B) The flow rate of the combined vent stream is less than 0.005
standard cubic meter per minute; or
    (C) The total organic HAP concentration is less than 50 parts per
million by volume for the combined vent stream.
    (v) If a batch process vent or aggregate batch vent stream is
combined with a Group 2 continuous process vent, the owner or operator
shall comply with the requirements in either paragraph (a)(13)(v)(A) or
(a)(13)(v)(B) of this section.
    (A) The owner or operator shall comply with the requirements in
Secs. 63.113 through 63.118 for Group 1 process vents; or
    (B) The owner or operator shall comply with Sec. 63.1322(e)(2) for
batch process vents and aggregate batch vent streams.
    (14) If any gas stream that originates outside of an affected
source that is subject to this subpart is normally conducted through
the same final recovery device as any continuous process vent stream
subject to this subpart, the owner or operator of the affected source
with the combined vent stream shall comply with all requirements in
Secs. 63.113 through 63.118 of subpart G of this part, except as
otherwise noted in this section, as applicable.
    (i) Instead of measuring the vent stream flow rate at the sampling
site specified in Sec. 63.115(b)(1), the sampling site for vent stream
flow rate shall be prior to the final recovery device and prior to the
point at which the gas stream that is not controlled under this subpart
is introduced into the combined vent stream.
    (ii) Instead of measuring total organic HAP or TOC concentrations
at the sampling site specified in Sec. 63.115(c)(1), the sampling site
for total organic HAP or TOC concentration shall be prior to the final
recovery device and prior to the point at which the gas stream that is
not controlled under this subpart is introduced into the combined vent
stream.
    (iii) The efficiency of the final recovery device (determined
according to paragraph (a)(14)(iv) of this section) shall be applied to
the total organic HAP or TOC concentration measured at the sampling
site described in paragraph (a)(14)(ii) of this section to determine
the exit concentration. This exit concentration of total organic HAP or
TOC shall then be used to perform the calculations outlined in
Sec. 63.115(d)(2)(iii) and Sec. 63.115(d)(2)(iv), for the combined vent
stream exiting the final recovery device.
    (iv) The efficiency of the final recovery device is determined by
measuring the total organic HAP or TOC concentration using Method 18 or
25A, 40 CFR part 60, appendix A, at the inlet to the final recovery
device after the introduction of any gas stream that is not controlled
under this subpart, and at the outlet of the final recovery device.
    (15) When Sec. 63.115(c)(3)(ii)(B) and (d)(2)(iv) and
Sec. 63.116(c)(3)(ii)(B) and (c)(4)(ii)(C) refer to Table 2 of subpart
F of this part, the owner or operator is only required to consider
organic HAP listed on Table 6 of this subpart for purposes of this
subpart.
    (16) The compliance date for continuous process vents subject to
the provisions of this section is specified in Sec. 63.1311.
    (17) In Sec. 63.116(a), instead of the reference to Sec. 63.11(b),
the requirements in Sec. 63.1333(e) shall apply.
* * * * *
    (b) Owners or operators of existing affected sources producing MBS
shall comply with either paragraph (b)(1) or (b)(2) of this section.
    (1) * * *
    (ii) When complying with this paragraph (b), and the term ``TRE of
4.0'' is used, or related terms indicating a TRE index value of 4.0,
referred to in

[[Page 11671]]

Sec. Sec. 63.113 through 63.118, are used, the term ``TRE of 6.7''
shall apply instead, for the purposes of this subpart. The TRE range of
3.7 to 6.7 for continuous process vents at existing affected sources
producing MBS corresponds to the TRE range of 1.0 to 4.0 for other
continuous process vents, as it applies to monitoring, recordkeeping,
and reporting.
* * * * *
    (c) Owners or operators of new affected sources producing SAN using
a batch process shall comply with the applicable requirements in
Sec. 63.1321.
    (d) Affected sources producing PET or polystyrene using a
continuous process are not subject to the provisions of this section
and instead are subject to the emissions control provisions of
Sec. 63.1316, the monitoring provisions of Sec. 63.1317, the testing
and compliance demonstration provisions of Sec. 63.1318, the
recordkeeping provisions of Sec. 63.1319, and the reporting provisions
of Sec. 63.1320. However, in some instances, as specified in
Sec. 63.1316, select continuous process vents present at affected
sources producing PET or polystyrene using a continuous process are
subject to the provisions of this section.
* * * * *
    35. Section 63.1316 is amended by revising the section title and
paragraphs (a), (b), (c) introductory text, (c)(1) introductory text,
(c)(1)(i), (c)(1)(ii), (c)(1)(iii)(A), (c)(1)(iii)(C), and (c)(3), to
read as follows:

Sec. 63.1316  PET and polystyrene affected sources--emissions control
provisions.

    (a) The owner or operator of an affected source producing PET using
a continuous process shall comply with paragraph (b) of this section.
The owner or operator of an affected source producing polystyrene using
a continuous process shall comply with paragraph (c) of this section.
As specified in paragraphs (b) and (c) of this section, owners or
operators shall comply with Sec. 63.1315 for certain continuous process
vents and with Sec. 63.1321 for all batch process vents. The owner or
operator of an affected source producing PET using a batch process or
producing polystyrene using a batch process shall comply with
Sec. 63.1315 for continuous process vents and with Sec. 63.1321 for
batch process vents, instead of the provisions of Secs. 63.1316 through
63.1320.
    (b) The owner or operator of an affected source producing PET using
a continuous process shall comply with the requirements specified in
paragraphs (b)(1) or (b)(2) of this section, as appropriate, and are
not required to comply with the requirements specified in 40 CFR part
60, subpart DDD. Compliance can be based on either organic HAP or TOC.
    (1) The owner or operator of an affected source producing PET using
a continuous dimethyl terephthalate process shall comply with
paragraphs (b)(1)(i) through (b)(1)(iv) of this section.
    (i) The owner or operator of an existing affected source with
organic HAP emissions greater than 0.12 kg organic HAP per Mg of
product from continuous process vents in the collection of material
recovery sections (i.e., methanol recovery) within the affected source
shall comply with either paragraph (b)(1)(i)(A) or (b)(1)(i)(B) of this
section. Emissions from continuous process vents in the collection of
material recovery sections within the affected source shall be
determined by the procedures specified in Sec. 63.1318(b). The owner or
operator of a new affected source shall comply with either paragraph
(b)(1)(i)(A) or (b)(1)(i)(B) of this section.
    (A) Organic HAP emissions from all continuous process vents in each
individual material recovery section shall, as a whole, be no greater
than 0.018 kg organic HAP per Mg of product from the associated
TPPU(s); or alternatively, organic HAP emissions from all continuous
process vents in the collection of material recovery sections within
the affected source shall, as a whole, be no greater than 0.018 kg
organic HAP per Mg product from all associated TPPU(s); or
    (B) As specified in Sec. 63.1318(d), the owner or operator shall
maintain the daily average outlet gas stream temperature from each
final condenser in a material recovery section at a temperature of
+3 deg.C (+37 deg.F) or less (i.e., colder).
    (ii) Organic HAP emissions from all continuous process vents in
each individual polymerization reaction section (including emissions
from any equipment used to further recover ethylene glycol, but
excluding emissions from process contact cooling towers) shall, as a
whole, be no greater than 0.02 kg organic HAP per Mg of product from
the associated TPPU(s); or alternatively, organic HAP emissions from
all continuous process vents in the collection of polymerization
reaction sections within the affected source shall, as a whole, be no
greater than 0.02 kg organic HAP per Mg product from all associated
TPPU(s).
    (iii) Continuous process vents not included in a material recovery
section, as specified in paragraph (b)(1)(i) of this section, and not
included in a polymerization reaction section, as specified in
paragraph (b)(1)(ii) of this section, shall comply with Sec. 63.1315.
    (iv) Batch process vents shall comply with Sec. 63.1321.
    (2) The owner or operator of an affected source producing PET using
a continuous terephthalic acid process shall comply with paragraphs
(b)(2)(i) through (b)(2)(iv) of this section.
    (i) Organic HAP emissions from all continuous process vents
associated with the esterification vessels in each individual raw
materials preparation section shall, as a whole, be no greater than
0.04 kg organic HAP per Mg of product from the associated TPPU(s); or
alternatively, organic HAP emissions from all continuous process vents
associated with the esterification vessels in the collection of raw
material preparation sections within the affected source shall, as a
whole, be no greater than 0.04 kg organic HAP per Mg of product from
all associated TPPU(s). Other continuous process vents (i.e., those not
associated with the esterification vessels) in the collection of raw
materials preparation sections within the affected source shall comply
with Sec. 63.1315.
    (ii) Organic HAP emissions from all continuous process vents in
each individual polymerization reaction section (including emissions
from any equipment used to further recover ethylene glycol, but
excluding emissions from process contact cooling towers) shall, as a
whole, be no greater than 0.02 kg organic HAP per Mg of product from
the associated TPPU(s); or alternatively, organic HAP emissions from
all continuous process vents in the collection of polymerization
reaction sections within the affected source shall, as a whole, be no
greater than 0.02 kg organic HAP per Mg of product from all associated
TPPU(s).
    (iii) Continuous process vents not included in a raw materials
preparation section, as specified in paragraph (b)(2)(i) of this
section, and not included in a polymerization reaction section, as
specified in paragraph (b)(2)(ii) of this section, shall comply with
Sec. 63.1315.
    (iv) Batch process vents shall comply with Sec. 63.1321.
    (c) The owner or operator of an affected source producing
polystyrene resin using a continuous process shall comply with the
requirements specified in paragraphs (c)(1) through (c)(3) of this
section, as appropriate, instead of the requirements specified in 40
CFR part 60, subpart DDD. Compliance can be based on either organic HAP
or TOC.
    (1) Limit organic HAP emissions from continuous process vents in
the collection of material recovery sections within the affected source
by complying

[[Page 11672]]

with either paragraph (c)(1)(i), (c)(1)(ii), or (c)(1)(iii) of this
section.
    (i) Organic HAP emissions from all continuous process vents in each
individual material recovery section shall, as a whole, be no greater
than 0.0036 kg organic HAP per Mg of product from the associated
TPPU(s); or alternatively, organic HAP emissions from all continuous
process vents in the collection of material recovery sections within
the affected source shall, as a whole, be no greater than 0.0036 kg
organic HAP per Mg of product from all associated TPPU(s);
    (ii) As specified in Sec. 63.1318(d), the owner or operator shall
maintain the daily average outlet gas stream temperature from each
final condenser in a material recovery section at a temperature of
-25 deg.C (-13 deg.F) or less (i.e., colder); or
    (iii) * * *
    (A) Reduce the emissions in a combustion device to achieve 98
weight percent reduction or to achieve a concentration of 20 parts per
million by volume (ppmv) on a dry basis, whichever is less stringent.
If an owner or operator elects to comply with the 20 ppmv standard, the
concentration shall include a correction to 3 percent oxygen only when
supplemental combustion air is used to combust the emissions;
* * * * *
    (C) Combust the emissions in a flare that complies with the
requirements of Sec. 63.1333(e).
* * * * *
    (3) Batch process vents shall comply with Sec. 63.1321.
    36. Section 63.1317 is revised (including the section title) to
read as follows:

Sec. 63.1317   PET and polystyrene affected sources--monitoring
provisions.

    Continuous process vents using a control or recovery device to
comply with Sec. 63.1316 shall comply with the applicable monitoring
provisions specified for continuous process vents in Sec. 63.1315(a),
except that references to group determinations (i.e., total resource
effectiveness) do not apply and owners or operators are not required to
comply with Sec. 63.113.
    37. Section 63.1318 is amended by revising the section title and
paragraphs (a), (b) introductory text, (b)(1)(i) introductory text,
(c), and (d), to read as follows:

Sec. 63.1318   PET and polystyrene affected sources--testing and
compliance demonstration provisions.

    (a) Except as specified in paragraphs (b) through (d) of this
section, continuous process vents using a control or recovery device to
comply with Sec. 63.1316 shall comply with the applicable testing and
compliance provisions for continuous process vents specified in
Sec. 63.1315, except that, for the purposes of this paragraph (a),
references to group determinations (i.e., total resource effectiveness)
do not apply and owners or operators are not required to comply with
Sec. 63.113.
    (b) PET affected sources using a dimethyl terephthalate process--
applicability determination procedure. Owners or operators shall
calculate organic HAP emissions from the collection of material
recovery sections at an existing affected source producing PET using a
continuous dimethyl terephthalate process to determine whether
Sec. 63.1316(b)(1)(i) is applicable using the procedures specified in
either paragraph (b)(1) or (b)(2) of this section.
    (1) * * *
    (i) The mass emission rate for each continuous process vent,
E<INF>i</INF>, shall be determined according to the procedures
specified in Sec. 63.116(c)(4). The sampling site for determining
whether Sec. 63.1316(b)(1)(i) is applicable shall be at the outlet of
the last recovery or control device. When the provisions of
Sec. 63.116(c)(4) specify that Method 18, 40 CFR part 60, appendix A
shall be used, Method 18 or Method 25A, 40 CFR part 60, appendix A may
be used for the purposes of this subpart. The use of Method 25A, 40 CFR
part 60, appendix A shall comply with paragraphs (b)(1)(i)(A) and
(b)(1)(i)(B) of this section.
* * * * *
    (c) Compliance with mass emissions per mass product standards.
Owners or operators complying with Sec. 63.1316(b)(1)(i)(A),
(b)(1)(ii), (b)(2)(i), (b)(2)(ii), and (c)(1)(i) shall demonstrate
compliance with the mass emissions per mass product requirements using
the procedures specified in paragraph (b)(1) of this section.
    (d) Compliance with temperature limits for final condensers. Owners
or operators complying with Sec. 63.1316(b)(1)(i)(B) or
Sec. 63.1316(c)(1)(ii) shall demonstrate continuous compliance based on
an average exit temperature determined for each operating day.
Calculation of the daily average exit temperature shall follow the
provisions of Sec. 63.1335(d)(3). The provisions of Sec. 63.1334 (f)
and (g) shall apply for the purposes of determining whether or not an
owner or operator is to be deemed out of compliance for a given
operating day.
    38. Section 63.1319 is amended by revising the section title and
paragraphs (a), (b) introductory text, (b)(2), and (c), to read as
follows:

Sec. 63.1319   PET and polystyrene affected sources--recordkeeping
provisions.

    (a) Except as specified in paragraphs (b) and (c) of this section,
owners or operators using a control or recovery device to comply with
Sec. 63.1316 shall comply with the applicable recordkeeping provisions
specified in Sec. 63.1315, except that, for the purposes of this
paragraph (a), references to group determinations (i.e., total resource
effectiveness) do not apply, and owners or operators are not required
to comply with Sec. 63.113.
    (b) Records demonstrating compliance with the applicability
determination procedure for PET affected sources using a dimethyl
terephthalate process. Owners or operators complying with
Sec. 63.1316(b)(1)(i) by demonstrating that mass emissions per mass
product are less than or equal to the level specified in
Sec. 63.1316(b)(1)(i) (i.e., 0.12 kg organic HAP per Mg of product)
shall keep the following records.
* * * * *
    (2) Records of any change in process operation that increases the
mass emissions per mass product.
    (c) Records demonstrating compliance with temperature limits for
final condensers. Owners or operators of continuous process vents
complying with Sec. 63.1316(b)(1)(i)(B) or Sec. 63.1316(c)(1)(ii) shall
keep records of the daily averages required by Sec. 63.1318, per the
recordkeeping provisions specified in Sec. 63.1335(d).
    39. Section 63.1320 is amended by revising the section title and
paragraphs (a) and (b); and removing and reserving paragraph (c), to
read as follows:

Sec. 63.1320   PET and polystyrene affected sources--reporting
provisions.

    (a) Except as specified in paragraph (b) of this section, owners
and operators using a control or recovery device to comply with
Sec. 63.1316 shall comply with the applicable reporting provisions
specified in Sec. 63.1315, except that, for the purposes of this
paragraph (a), references to group determinations (i.e., total resource
effectiveness) do not apply, and owners or operators are not required
to comply with Sec. 63.113.
    (b) Reporting for PET affected sources using a dimethyl
terephthalate process. Owners or operators complying with Sec. 63.1316
by demonstrating that mass emissions per mass product are less than or
equal to the level specified in Sec. 63.1316(b)(1)(i) (i.e., 0.12 kg
organic HAP per Mg of product) shall comply with paragraphs (b)(1)
through (b)(3) of this section.
    (1) Include the information specified in Sec. 63.1319(b)(2) in each
Periodic

[[Page 11673]]

Report, required by Sec. 63.1335(e)(6), as appropriate.
    (2) Include the information specified in Sec. 63.1319(b)(1) in the
Notification of Compliance Status, required by Sec. 63.1335(e)(5).
    (3) Whenever a process change, as defined in Sec. 63.115(e), is
made that causes emissions from continuous process vents in the
collection of material recovery sections (i.e., methanol recovery)
within the affected source to be greater than 0.12 kg organic HAP per
Mg of product, the owner or operator shall submit a report within 180
days after the process change is made or the information regarding the
process change is known to the owner or operator. This report may be
included in the next Periodic Report as specified in
Sec. 63.1335(e)(6)(iii)(D)(2). The report shall include the information
specified in Sec. 63.1319(b)(1) and a description of the process
change.
    (c) [Reserved.]
* * * * *
    40. Section 63.1321 is amended by revising paragraphs (a) and (c),
to read as follows:

Sec. 63.1321   Batch process vents provisions.

    (a) Batch process vents. Except as specified in paragraphs (b)
through (d) of this section, owners and operators of new and existing
affected sources with batch process vents shall comply with the
requirements in Secs. 63.1322 through 63.1327. The batch process vent
group status shall be determined in accordance with Sec. 63.1323.
Owners or operators of batch process vents classified as Group 1 shall
comply with the reference control technology requirements for Group 1
batch process vents in Sec. 63.1322, the monitoring requirements in
Sec. 63.1324, the performance test methods and procedures to determine
compliance in Sec. 63.1325, the recordkeeping requirements in
Sec. 63.1326, and the reporting requirements in Sec. 63.1327. Owners or
operators of all Group 2 batch process vents shall comply with the
applicable reference control technology requirements in Sec. 63.1322,
the applicable recordkeeping requirements in Sec. 63.1326, and the
applicable reporting requirements in Sec. 63.1327.
* * * * *
    (c) Aggregate batch vent streams. Aggregate batch vent streams, as
defined in Sec. 63.1312, are subject to the control requirements
specified in Sec. 63.1322(b), as well as the monitoring, testing,
recordkeeping, and reporting requirements specified in Secs. 63.1324
through 63.1327 for aggregate batch vent streams.
* * * * *
    41. Section 63.1322 is amended by revising paragraphs (a)
introductory text, (a)(1)(i), (b) introductory text, (b)(1)(i), (b)(2),
(c)(1), (c)(2), (e), (f), and (g); and adding paragraph (h), to read as
follows:

Sec. 63.1322   Batch process vents--reference control technology.

    (a) Batch process vents. The owner or operator of a Group 1 batch
process vent, as determined using the procedures in Sec. 63.1323, shall
comply with the requirements of either paragraph (a)(1) or (a)(2) of
this section, except as provided for in paragraph (a)(3) of this
section. Compliance may be based on either organic HAP or TOC.
    (1) * * *
    (i) The owner or operator shall comply with the requirements of
Sec. 63.1333(e) for the flare.
* * * * *
    (b) Aggregate batch vent streams. The owner or operator of an
aggregate batch vent stream that contains one or more Group 1 batch
process vents shall comply with the requirements of either paragraph
(b)(1) or (b)(2) of this section, except as provided for in paragraph
(b)(3) of this section. Compliance may be based on either organic HAP
or TOC.
    (1) * * *
    (i) The owner or operator shall comply with the requirements of
Sec. 63.1333(e) for the flare.
* * * * *
    (2) For each aggregate batch vent stream, reduce organic HAP
emissions by 90 weight percent or to a concentration of 20 parts per
million by volume, whichever is less stringent, on a continuous basis
using a control device. For combustion devices, the emission reduction
or concentration shall be calculated on a dry basis, corrected to 3
percent oxygen.
* * * * *
    (c) * * *
    (1) If a combustion device is used to comply with paragraph (a)(2),
(a)(3), (b)(2), or (b)(3) of this section for a halogenated batch
process vent, halogenated aggregate batch vent stream, or halogenated
continuous process vent, said emissions exiting the combustion device
shall be ducted to a halogen reduction device that reduces overall
emissions of hydrogen halides and halogens by at least 99 percent
before discharge to the atmosphere.
    (2) A halogen reduction device may be used to reduce the halogen
atom mass emission rate of said emissions to less than 3,750 kg/yr for
batch process vents or aggregate batch vent streams and to less than
0.45 kilograms per hour for continuous process vents prior to venting
to any combustion control device, and thus make the batch process vent,
aggregate batch vent stream, or continuous process vent nonhalogenated.
The nonhalogenated batch process vent, aggregate batch vent stream, or
continuous process vent shall then comply with the requirements of
either paragraph (a) or (b) of this section, as appropriate.
* * * * *
    (e) Combination of batch process vents or aggregate batch vent
streams with continuous process vents. If a batch process vent or
aggregate batch vent stream is combined with a continuous process vent,
the owner or operator shall determine whether the combined vent stream
is subject to the provisions of Secs. 63.1321 through 63.1327 according
to paragraphs (e)(1) and (e)(2) of this section.
    (1) A batch process vent or aggregate batch vent stream combined
with a continuous process vent is not subject to the provisions of
Secs. 63.1321 through 63.1327, if the requirements in paragraph
(e)(1)(i) and in either paragraph (e)(1)(ii) or (e)(1)(iii) are met.
    (i) The only emissions to the atmosphere from the batch process
vent or aggregate batch vent stream prior to being combined with the
continuous process vent are from equipment subject to Sec. 63.1331.
    (ii) The batch process vent or aggregate batch vent stream is
combined with a Group 1 continuous process vent prior to the combined
vent stream being routed to a control device. In this paragraph
(e)(1)(ii), the definition of control device as it relates to
continuous process vents shall be used. Furthermore, the combined vent
stream discussed in this paragraph (e)(1)(ii) shall be subject to
Sec. 63.1315(a)(13)(i).
    (iii) The batch process vent or aggregate batch vent stream is
combined with a continuous process vent prior to being routed to a
recovery device. In this paragraph (e)(1)(iii), the definition of
recovery device as it relates to continuous process vents shall be
used. Furthermore, the combined vent stream discussed in this paragraph
(e)(1)(iii) shall be subject to Sec. 63.1315(a)(13)(ii).
    (2) If the batch process vent or aggregate batch vent stream is
combined with a Group 2 continuous process vent, the group status of
the batch process vent shall be determined prior to its combination
with the Group 2 continuous process vent, in accordance with
Sec. 63.1323, and the combined vent stream shall be subject to the

[[Page 11674]]

requirements for aggregate batch vent streams in Secs. 63.1321 through
63.1327.
    (f) Group 2 batch process vents with annual emissions greater than
or equal to the level specified in Sec. 63.1323(d). The owner or
operator of a Group 2 batch process vent with annual emissions greater
than or equal to the level specified in Sec. 63.1323(d) shall comply
with the provisions of paragraph (f)(1), (f)(2), or (h) of this
section.
    (1) The owner or operator of an affected source shall comply with
the requirements in paragraphs (f)(1)(i) through (f)(1)(iv) of this
section.
    (i) The owner or operator shall establish a batch mass input
limitation that ensures the Group 2 batch process vent does not become
a Group 1 batch process vent.
    (ii) Over the course of the affected source's ``year,'' as reported
in the Notification of Compliance Status in accordance with
Sec. 63.1335(e)(5)(iv), the owner or operator shall not charge a mass
of HAP or material to the batch unit operation that is greater than the
level established as the batch mass input limitation.
    (iii)The owner or operator shall comply with the recordkeeping
requirements in Sec. 63.1326(d)(2), and the reporting requirements in
Sec. 63.1327(a)(3), (b), and (c).
    (iv) The owner or operator shall comply with Sec. 63.1323(i) when
process changes are made.
    (2) Comply with the requirements of this subpart for Group 1 batch
process vents.
    (g) Group 2 batch process vents with annual emissions less than the
level specified in Sec. 63.1323(d). The owner or operator of a Group 2
batch process vent with annual emissions less than the level specified
in Sec. 63.1323(d) shall comply with paragraphs (g)(1), (g)(2), (g)(3),
or (g)(4) of this section.
    (1) The owner or operator of the affected source shall comply with
the requirements in paragraphs (g)(1)(i) through (g)(1)(iv) of this
section.
    (i) The owner or operator shall establish a batch mass input
limitation that ensures emissions do not exceed the level specified in
Sec. 63.1323(d).
    (ii) Over the course of the affected source's ``year,'' as reported
in the Notification of Compliance Status in accordance with
Sec. 63.1335(e)(5)(iv), the owner or operator shall not charge a mass
of HAP or material to the batch unit operation that is greater than the
level established as the batch mass input limitation.
    (iii) The owner or operator shall comply with the recordkeeping
requirements in Sec. 63.1326(d)(1), and the reporting requirements in
Sec. 63.1327(a)(2), (b), and (c).
    (iv) The owner or operator of the affected source shall comply with
Sec. 63.1323(i) when process changes are made.
    (2) Comply with the requirements of paragraph (f)(1) of this
section;
    (3) Comply with the requirements of paragraph (f)(2) of this
section; or
    (4) Comply with the requirements of paragraph (h) of this section.
    (h) Owners or operators of Group 2 batch process vents are not
required to establish a batch mass input limitation if the batch
process vent is Group 2 at the conditions specified in paragraphs
(h)(1) and (h)(2) of this section and if the owner or operator complies
with the recordkeeping provisions in Secs. 63.1326(a)(1) through (3),
63.1326(a)(9), and 63.1326(a)(4) through (6) as applicable, and the
reporting requirements in Sec. 63.1327(a)(5), (a)(6), and (b).
    (1) Emissions for the single highest-HAP recipe (considering all
products that are produced in the batch unit operation) are used in the
group determination; and
    (2) The group determination assumes that the batch unit operation
is operating at the maximum design capacity of the TPPU for 12 months.
    42. Section 63.1323 is amended by:
    a. Revising paragraphs (a)(1), (b) introductory text, (b)(1),
(b)(2), (b)(4)(i)(A) through (b)(4)(i)(C), (b)(4)(ii)(B)(1), (b)(5)
introductory text, (b)(5)(ii), (b)(5)(iii) introductory text,
(b)(5)(iv), (b)(5)(v) introductory text, (b)(5)(v)(A), (b)(6), (d), (e)
introductory text, (e)(1) introductory text, (e)(1)(i), (e)(1)(iii),
(e)(2), (e)(3), (g), (h)(1)(iii), (h)(2), (i), (j) introductory text
and (j)(3); and
    b. Adding paragraph (b)(9), to read as follows:

Sec. 63.1323  Batch process vents--methods and procedures for group
determination.

    (a) * * *
    (1) The procedures specified in paragraphs (b) through (g) of this
section shall be followed to determine the group status of each batch
process vent. This determination shall be made in accordance with
either paragraph (a)(1)(i) or (a)(1)(ii) of this section.
    (i) An owner or operator may choose to determine the group status
of a batch process vent based on the expected mix of products. For each
product, emission characteristics of the single highest-HAP recipe, as
defined in paragraph (a)(1)(iii) of this section, for that product
shall be used in the procedures in paragraphs (b) through (i) of this
section.
    (ii) An owner or operator may choose to determine the group status
of a batch process vent based on annualized production of the single
highest-HAP recipe, as defined in paragraph (a)(1)(iii) of this
section, considering all products produced or processed in the batch
unit operation. The annualized production of the highest-HAP recipe
shall be based exclusively on the production of the single highest-HAP
recipe of all products produced or processed in the batch unit
operation for a 12 month period. The production level used may be the
actual production rate. It is not necessary to assume a maximum
production rate (i.e., 8,760 hours per year at maximum design
production).
    (iii) The single highest-HAP recipe for a product means the recipe
of the product with the highest total mass of HAP charged to the
reactor during the production of a single batch of product.
* * * * *
    (b) Determination of annual emissions. The owner or operator shall
calculate annual uncontrolled TOC or organic HAP emissions for each
batch process vent using the methods described in paragraphs (b)(1)
through (b)(8) of this section. To estimate emissions from a batch
emissions episode, owners or operators may use either the emissions
estimation equations in paragraphs (b)(1) through (b)(4) of this
section, or direct measurement as specified in paragraph (b)(5) of this
section. Engineering assessment may be used to estimate emissions from
a batch emission episode only under the conditions described in
paragraph (b)(6) of this section. In using the emissions estimation
equations in paragraphs (b)(1) through (b)(4) of this section,
individual component vapor pressure and molecular weight may be
obtained from standard references. Methods to determine individual HAP
partial pressures in multicomponent systems are described in paragraph
(b)(9) of this section. Other variables in the emissions estimation
equations may be obtained through direct measurement, as defined in
paragraph (b)(5) of this section, through engineering assessment, as
defined in paragraph (b)(6)(ii) of this section, by process knowledge,
or by any other appropriate means. Assumptions used in determining
these variables must be documented. Once emissions for the batch
emission episode have been determined using either the emissions
estimation equations, direct measurement, or engineering assessment,
emissions from a batch cycle shall be calculated in accordance with
paragraph (b)(7) of this section, and annual emissions from the batch
process vent shall be calculated in

[[Page 11675]]

accordance with paragraph (b)(8) of this section.
    (1) TOC or organic HAP emissions from the purging of an empty
vessel shall be calculated using Equation 2 of this subpart. Equation 2
of this subpart does not take into account evaporation of any residual
liquid in the vessel.
where:

<SUP>E</SUP>episode = Emissions, kg/episode.
<SUP>V</SUP>ves = Volume of vessel, m<SUP>3</SUP>.
[GRAPHIC] [TIFF OMITTED] TP09MR99.030

P = TOC or total organic HAP partial pressure, kPa.
<SUP>MW</SUP>wavg = Weighted average molecular weight of TOC or organic
HAP in vapor, determined in accordance with paragraph (b)(4)(i)(D) of
this section, kg/kmol.
R = Ideal gas constant, 8.314 m<SUP>3</SUP><bullet>kPa/kmol<bullet>K.
T = Temperature of vessel vapor space, K.
m = Number of volumes of purge gas used.

    (2) TOC or organic HAP emissions from the purging of a filled
vessel shall be calculated using Equation 3 of this subpart.
Where:

[GRAPHIC] [TIFF OMITTED] TP09MR99.031

<SUP>E</SUP>episode = Emissions, kg/episode.
y = Saturated mole fraction of all TOC or organic HAP in vapor phase.
<SUP>V</SUP>dr = Volumetric gas displacement rate, m<SUP>3</SUP>/min.
P = Pressure in vessel vapor space, kPa.
<SUP>MW</SUP>wavg = Weighted average molecular weight of TOC or organic
HAP in vapor, determined in accordance with paragraph (b)(4)(i)(D) of
this section, kg/kmol.
R = Ideal gas constant, 8.314 m<SUP>3</SUP><bullet>kPa/kmol<bullet>K.
T = Temperature of vessel vapor space, K.
<SUP>P</SUP>i = Vapor pressure of TOC or individual organic HAP i, kPa.
<SUP>x</SUP>i = Mole fraction of TOC or organic HAP i in the liquid.
[GRAPHIC] [TIFF OMITTED] TP09MR99.032

n = Number of organic HAP in stream. Note: Summation not applicable if
TOC emissions are being estimated.
<SUP>T</SUP>m = Minutes/episode.
* * * * *
    (4) * * *
    (i) * * *
    (A) Emissions caused by heating of a vessel shall be calculated
using Equation 5 of this subpart. The assumptions made for this
calculation are atmospheric pressure of 760 millimeters of mercury (mm
Hg) and the displaced gas is always saturated with volatile organic
compounds (VOC) vapor in equilibrium with the liquid mixture.
Where:

<SUP>E</SUP>episode = Emissions, kg/episode.
(P<INF>i</INF>)T1, (P<INF>i</INF>)T<SUP>2</SUP> = Partial pressure
(kPa) of TOC or each organic HAP i in the vessel headspace at initial
(T1) and final (T2) temperature.
n = Number of organic HAP in stream. Note: Summation not applicable if
TOC emissions are being estimated.
<greek-D><greek-ee> = Number of kilogram-moles (kg-moles) of gas
displaced, determined in accordance with paragraph (b)(4)(i)(B) of this
section.
101.325 = Constant, kPa.
(MW<INF>WAVG,T1</INF>), (MW<INF>WAVG,</INF>T2) = Weighted average
molecular weight of TOC or total organic HAP in the displaced gas
stream, determined in accordance with paragraph (b)(4)(i)(D) of this
section, kg/kmol.

    (B) The moles of gas displaced, <greek-D><greek-ee>, is calculated
using Equation 6 of this subpart.
where:

<greek-D><greek-ee> = Number of kg-moles of gas displaced.
V<INF>fs</INF> = Volume of free space in the vessel, m<INF>3</INF>.
R = Ideal gas constant, 8.314 m<SUP>3</SUP><bullet>kPa/kmol<bullet>K.
[GRAPHIC] [TIFF OMITTED] TP09MR99.033

Pa<INF>1</INF> = Initial noncondensible gas partial pressure in the
vessel, kPa.
Pa<INF>2</INF> = Final noncondensible gas partial pressure, kPa.
T<INF>1</INF> = Initial temperature of vessel, K.
T<INF>2</INF> = Final temperature of vessel, K.

[[Page 11676]]

    (C) The initial and final pressure of the noncondensible gas in the
vessel shall be calculated using Equation 7 of this subpart.
where:

Pa = Initial or final partial pressure of noncondensible gas in the
vessel headspace, kPa.
101.325 = Constant, kPa.
(P<INF>i</INF>)T = Partial pressure of TOC or each organic HAP i in the
vessel headspace, kPa, at the initial or final temperature (T1 or T2).
n = Number of organic HAP in stream. Note: Summation not applicable if
TOC emissions are being estimated.
* * * * *
    (ii) * * *
    (B) * * *
    (1) If the final temperature of the heatup is at or lower than 5 K
below the boiling point, the final temperature for the last increment
shall be the final temperature for the heatup, even if the last
increment is less than 5 K.
* * * * *
    (5) The owner or operator may estimate annual emissions for a batch
emission episode by direct measurement. If direct measurement is used,
the owner or operator shall either perform a test for the duration of a
representative batch emission episode or perform a test during only
those periods of the batch emission episode for which the emission rate
for the entire episode can be determined or for which the emissions are
greater than the average emission rate of the batch emission episode.
The owner or operator choosing either of these options shall develop an
emission profile for the entire batch emission episode, based on either
process knowledge or test data collected, to demonstrate that test
periods are representative. Examples of information that could
constitute process knowledge include calculations based on material
balances and process stoichiometry. Previous test results may be used
provided the results are still relevant to the current batch process
vent conditions. Performance tests shall follow the procedures
specified in paragraphs (b)(5)(i) through (b)(5)(iii) of this section.
The procedures in either paragraph (b)(5)(iv) or (b)(5)(v) of this
section shall be used to calculate the emissions per batch emission
episode.
* * * * *
    (ii) Annual average batch vent flow rate shall be determined as
specified in paragraph (e) of this section.
    (iii) Method 18 or Method 25A, 40 CFR part 60, appendix A, shall be
used to determine the concentration of TOC or organic HAP, as
appropriate. Alternatively, any other method or data that has been
validated according to the applicable procedures in Method 301 of
appendix A of this part may be used. The use of Method 25A, 40 CFR part
60, appendix A shall conform with the requirements in paragraphs
(b)(5)(iii)(A) and (b)(5)(iii)(B) of this section.
* * * * *
    (iv) If an integrated sample is taken over the entire batch
emission episode to determine the average batch vent concentration of
TOC or total organic HAP, emissions shall be calculated using Equation
9 of this subpart.
where:

[GRAPHIC] [TIFF OMITTED] TP09MR99.034

E<INF>episode</INF> = Emissions, kg/episode.
K = Constant, 2.494 x 10<SUP>-6</SUP> (ppmv)<SUP>-1</SUP> (gm-mole/scm)
(kg/gm) (min/hr), where standard temperature is 20  deg.C.
C<INF>j</INF> = Average batch vent concentration of TOC or sample
organic HAP component j of the gas stream, dry basis, ppmv.
M<INF>j</INF> = Molecular weight of TOC or sample organic HAP component
j of the gas stream, gm/gm-mole.
AFR = Average batch vent flow rate of gas stream, dry basis, scmm.
T<INF>h</INF> = Hours/episode
n = Number of organic HAP in stream. Note: Summation not applicable if
TOC emissions are being estimated using a TOC concentration measured
using Method 25A, 40 CFR part 60, appendix A.

[GRAPHIC] [TIFF OMITTED] TP09MR99.035

    (v) If grab samples are taken to determine the average batch vent
concentration of TOC or total organic HAP, emissions shall be
calculated according to paragraphs (b)(5)(v)(A) and (b)(5)(v)(B) of
this section.
    (A) For each measurement point, the emission rate shall be
calculated using Equation 10 of this subpart.
Where:

<INF>E</INF>point = Emission rate for individual measurement point, kg/
hr.
K = Constant, 2.494 x 10<SUP>-6</SUP> (ppmv)<SUP>-1</SUP> (gm-mole/scm)
(kg/gm) (min/hr), where standard temperature is 20  deg.C.
C<INF>j</INF> = Concentration of TOC or sample organic HAP component j
of the gas stream, dry basis, ppmv.
M<INF>j</INF> = Molecular weight of TOC or sample organic HAP component
j of the gas stream, gm/gm-mole.
FR = Flow rate of gas stream for the measurement point, dry basis,
scmm.
n = Number of organic HAP in stream. Note: Summation not applicable if
TOC emissions are being estimated using a TOC concentration measured
using Method 25A, 40 CFR part 60, appendix A.
* * * * *
    (6) Engineering assessment may be used to estimate emissions from a
batch emission episode, if the criteria in paragraph (b)(6)(i) are met.
Data or other information used to demonstrate that the criteria in
paragraph (b)(6)(i) of this section have been met shall be reported as
specified in paragraph (b)(6)(iii) of this section. Paragraph
(b)(6)(ii) of this section defines engineering assessment, for the
purposes of estimating emissions from a batch emissions episode. All
data, assumptions, and procedures used in an engineering assessment
shall be documented.
    (i) If the criteria specified in paragraph (b)(6)(i)(A), (B), or
(C) are met for a specific batch emission episode, the owner or
operator may use engineering assessment, as described in paragraph
(b)(6)(ii) of this section, to estimate emissions from that batch
emission episode, and the owner or operator is not required to use the
emissions estimation equations described in paragraphs (b)(1) through
(b)(4) of this section to estimate emissions from that batch emission
episode.
    (A) Previous test data, where the measurement of organic HAP or TOC
emissions was an outcome of the test, show a greater than 20 percent
discrepancy between the test value and the value estimated using the
applicable equations in paragraphs (b)(1) through (b)(4) of this
section. Paragraphs (b)(6)(i)(A)(1) and (2) of this section describe
test data that will be acceptable under this paragraph (b)(6)(i)(A).

[[Page 11677]]

    (1) Test data for the batch emission episode obtained during
production of the product for which the demonstration is being made.
    (2) Test data obtained for a batch emission episode from another
process train, where the test data were obtained during production of
the product for which the demonstration is being made. Test data from
another process train may be used only if the owner or operator can
demonstrate that the data are representative of the batch emission
episode for which the demonstration is being made, taking into account
the nature, size, operating conditions, production rate, and sequence
of process steps (e.g., reaction, distillation, etc.) of the equipment
in the other process train.
    (B) Previous test data obtained during the production of the
product for which the demonstration is being made, for the batch
emission episode with the highest organic HAP emissions on a mass
basis, show a greater than 20 percent discrepancy between the test
value and the value estimated using the applicable equations in
paragraphs (b)(1) through (b)(4) of this section. If the criteria in
this paragraph (b)(6)(i)(B) are met, then engineering assessment may be
used for all batch emission episodes associated with that batch cycle
for the batch unit operation.
    (C) The owner or operator has requested and been granted approval
to use engineering assessment to estimate emissions from a batch
emissions episode. The request to use engineering assessment to
estimate emissions from a batch emissions episode shall contain
sufficient information and data to demonstrate to the Administrator
that engineering assessment is an accurate means of estimating
emissions for that particular batch emissions episode. The request to
use engineering assessment to estimate emissions for a batch emissions
episode shall be submitted in the Precompliance Report required under
Sec. 63.506(e)(3).
    (ii) Engineering assessment includes, but is not limited to, the
following:
    (A) Previous test results, provided the tests are representative of
current operating practices;
    (B) Bench-scale or pilot-scale test data obtained under conditions
representative of current process operating conditions;
    (C) Flow rate, TOC emission rate, or organic HAP emission rate
specified or implied within a permit limit applicable to the batch
process vent; and
    (D) Design analysis based on accepted chemical engineering
principles, measurable process parameters, or physical or chemical laws
or properties. Examples of analytical methods include, but are not
limited to:
    (1) Use of material balances;
    (2) Estimation of flow rate based on physical equipment design such
as pump or blower capacities;
    (3) Estimation of TOC or organic HAP concentrations based on
saturation conditions; and
    (4) Estimation of TOC or organic HAP concentrations based on grab
samples of the liquid or vapor.
    (iii) Data or other information used to demonstrate that the
criteria in paragraph (b)(6)(i) of this section have been met shall be
reported as specified in paragraphs (b)(6)(iii)(A) and (b)(6)(iii)(B)
of this section.
    (A) Data or other information used to demonstrate that the criteria
in paragraph (b)(6)(i)(A) or (b)(6)(i)(B) of this section have been met
shall be reported in the Notification of Compliance Status, as required
in Sec. 63.1327(a)(8).
    (B) The request for approval to use engineering assessment to
estimate emissions from a batch emissions episode as allowed under
paragraph (b)(6)(i)(C) of this section, and sufficient data or other
information for demonstrating to the Administrator that engineering
assessment is an accurate means of estimating emissions for that
particular batch emissions episode shall be submitted with the
Precompliance Report, as required in Sec. 63.1335(e)(3).
* * * * *
    (9) Individual HAP partial pressures in multicomponent systems
shall be determined using the appropriate method specified in
paragraphs (b)(9)(i) through (b)(9)(iii) of this section.
    (i) If the components are miscible, use Raoult's law to calculate
the partial pressures;
    (ii) If the solution is a dilute aqueous mixture, use Henry's law
constants to calculate partial pressures;
    (iii) If Raoult's law or Henry's law are not appropriate or
available, the owner or operator may use any of the options in
paragraphs (b)(9)(iii)(A), (B), or (C) of this section.
    (A) Experimentally obtained activity coefficients, Henry's law
constants, or solubility data;
    (B) Models, such as group-contribution models, to predict activity
coefficients; or
    (C) Assume the components of the system behave independently and
use the summation of all vapor pressures from the HAPs as the total HAP
partial pressure.
* * * * *
    (d) Minimum emission level exemption. A batch process vent with
annual emissions of TOC or organic HAP less than 11,800 kg/yr is
considered a Group 2 batch process vent and the owner or operator of
said batch process vent shall comply with the requirements in
Sec. 63.1322(f) or (g). Annual emissions of TOC or organic HAP are
determined at the exit of the batch unit operation, as described in
paragraph (a)(2) of this section, and are determined as specified in
paragraph (b) of this section. The owner or operator of said batch
process vent is not required to comply with the provisions in
paragraphs (e) through (g) of this section.
    (e) Determination of average batch vent flow rate and annual
average batch vent flow rate. The owner or operator shall determine the
average batch vent flow rate for each batch emission episode in
accordance with one of the procedures provided in paragraphs (e)(1)
through (e)(2) of this section. The annual average batch vent flow rate
for a batch process vent shall be calculated as specified in paragraph
(e)(3) of this section.
    (1) Determination of the average batch vent flow rate for a batch
emission episode by direct measurement shall be made using the
procedures specified in paragraphs (e)(1)(i) through (e)(1)(iii) of
this section.
    (i) The volumetric flow rate (FR<INF>i</INF>) for a batch emission
episode, in standard cubic meters per minute (scmm) at 20 deg.C, shall
be determined using Method 2, 2A, 2C, or 2D, 40 CFR part 60, appendix
A, as appropriate.
* * * * *
    (iii) The average batch vent flow rate for a batch emission episode
shall be calculated using Equation 14 of this subpart.
[GRAPHIC] [TIFF OMITTED] TP09MR99.036

Where:

AFR<INF>episode</INF> = Average batch vent flow rate for the batch
emission episode, scmm.
FR<INF>i</INF> = Flow rate for individual measurement i, scmm.
n = Number of flow rate measurements taken during the batch emission
episode.

    (2) The average batch vent flow rate for a batch emission episode
may be determined by engineering assessment, as defined in paragraph
(b)(6)(i) of this section. All data, assumptions, and procedures used
shall be documented.
    (3) The annual average batch vent flow rate for a batch process
vent shall

[[Page 11678]]

be calculated using Equation 15 of this subpart.
[GRAPHIC] [TIFF OMITTED] TP09MR99.037

Where:
AFR = Annual average batch vent flow rate for the batch process vent,
scmm.
DUR<INF>i</INF> = Duration of type i batch emission episodes annually,
hrs/yr.
AFR<INF>episode,i</INF> = Average batch vent flow rate for type i batch
emission episode, scmm.
n = Number of types of batch emission episodes venting from the batch
process vent.
* * * * *
    (g) Group 1/Group 2 status determination. The owner or operator
shall compare the cutoff flow rate, calculated in accordance with
paragraph (f) of this section, with the annual average batch vent flow
rate, determined in accordance with paragraph (e)(3) of this section.
The group determination status for each batch process vent shall be
made using the criteria specified in paragraphs (g)(1) and (g)(2) of
this section.
    (1) If the cutoff flow rate is greater than or equal to the annual
average batch vent flow rate of the stream, the batch process vent is
classified as a Group 1 batch process vent.
    (2) If the cutoff flow rate is less than the annual average batch
vent flow rate of the stream, the batch process vent is classified as a
Group 2 batch process vent.
    (h) * * *
    (1) * * *
    (iii) Average concentration of organic compounds containing
halogens and hydrogen halides as measured by Method 26 or 26A, 40 CFR
part 60, appendix A.
* * * * *
    (2) The annual mass emissions of halogen atoms for a batch process
vent shall be calculated using Equation 17 of this subpart.
[GRAPHIC] [TIFF OMITTED] TP09MR99.038

Where:

E<INF>halogen</INF> = Mass of halogen atoms, dry basis, kg/yr.
K = Constant, 0.022 (ppmv)<SUP>-1</SUP> (kg-mole per scm) (minute/yr),
where standard temperature is 20  deg.C.
AFR = Annual average batch vent flow rate of the batch process vent,
determined according to paragraph (e) of this section, scmm.
M<INF>j,i</INF> = Molecular weight of halogen atom i in compound j, kg/
kg-mole.
L<INF>j,i</INF> = Number of atoms of halogen i in compound j.
n = Number of halogenated compounds j in the batch process vent.
m = Number of different halogens i in each compound j of the batch
process vent.
C<INF>avgj</INF> = Annual average batch vent concentration of
halogenated compound j in the batch process vent as determined by using
Equation 18 of this subpart, dry basis, ppmv.
[GRAPHIC] [TIFF OMITTED] TP09MR99.039

Where:

DUR<INF>i</INF> = Duration of type i batch emission episodes annually,
hrs/yr.
C<INF>i</INF> = Average batch vent concentration of halogenated
compound j in type i batch emission episode, ppmv.
n = Number of types of batch emission episodes venting from the batch
process vent.
* * * * *
    (i) Process changes affecting Group 2 batch process vents. Whenever
process changes, as described in paragraph (i)(1) of this section, are
made that affect one or more Group 2 batch process vents and that could
reasonably be expected to change one or more Group 2 batch process
vents to Group 1 batch process vents or that could reasonably be
expected to reduce the batch mass input limitation for one or more
Group 2 batch process vents, the owner or operator shall comply with
paragraphs (i)(2) and (3) of this section.
    (1) Examples of process changes include the changes listed in
paragraphs (i)(1)(i), (i)(1)(ii), and (i)(1)(iii) of this section.
    (i) For all batch process vents, examples of process changes
include, but are not limited to, changes in feedstock type or catalyst
type; or whenever there is replacement, removal, or modification of
recovery equipment considered part of the batch unit operation as
specified in paragraph (a)(2) of this section; or increases in
production capacity or production rate. For purposes of this paragraph
(i), process changes do not include: process upsets; unintentional,
temporary process changes; and changes that are within the margin of
variation on which the original group determination was based.
    (ii) For Group 2 batch process vents where the group determination
and batch mass input limitation are based on the expected mix of
products, the situations described in paragraphs (i)(1)(ii)(A) and (B)
of this section shall be considered to be process changes.
    (A) The production of combinations of products not considered in
establishing the batch mass input limitation.
    (B) The production of a recipe of a product with a total mass of
HAP charged to the reactor during the production of a single batch of
product that is higher than the total mass of HAP for the recipe used
as the single highest-HAP recipe for that product in the batch mass
input limitation determination.
    (iii) For Group 2 batch process vents where the group determination
and batch mass input limitation are based on the single highest-HAP
recipe

[[Page 11679]]

(considering all products produced or processed in the batch unit
operation), the production of a recipe having a total mass of HAP
charged to the reactor (during the production of a single batch of
product) that is higher than the total mass of HAP for the highest-HAP
recipe used in the batch mass input limitation determination shall be
considered to be a process change.
    (2) For each batch process vent affected by a process change, the
owner or operator shall redetermine the group status by repeating the
procedures specified in paragraphs (b) through (g) of this section, as
applicable; alternatively, engineering assessment, as described in
paragraph (b)(6)(i) of this section, may be used to determine the
effects of the process change.
    (3) Based on the results from paragraph (i)(2) of this section,
owners or operators of affected sources shall comply with either
paragraph (i)(3)(i), (ii), or (iii) of this section.
    (i) If the group redetermination described in paragraph (i)(2) of
this section indicates that a Group 2 batch process vent has become a
Group 1 batch process vent as a result of the process change, the owner
or operator shall submit a report as specified in Sec. 63.1327(b) and
shall comply with the Group 1 provisions in Secs. 63.1322 through
63.1327 in accordance with Sec. 63.1310(i)(2)(ii).
    (ii) If the redetermination described in paragraph (i)(2) of this
section indicates that a Group 2 batch process vent with annual
emissions less than the level specified in paragraph (d) of this
section, that is in compliance with Sec. 63.1322(g), now has annual
emissions greater than or equal to the level specified in paragraph (d)
of this section but remains a Group 2 batch process vent, the owner or
operator shall comply with the provisions in paragraphs (i)(3)(ii)(A)
through (C) of this section.
    (A) Redetermine the batch mass input limitation;
    (B) Submit a report as specified in Sec. 63.1327(c); and
    (C) Comply with Sec. 63.1322(f), beginning with the year following
the submittal of the report submitted according to paragraph
(i)(3)(ii)(B) of this section.
    (iii) If the group redetermination described in paragraph (i)(2) of
this section indicates no change in group status or no change in the
relation of annual emissions to the levels specified in paragraph (d)
of this section, the owner or operator shall comply with paragraphs
(i)(3)(iii)(A) and (i)(3)(iii)(B) of this section.
    (A) The owner or operator shall redetermine the batch mass input
limitation; and
    (B) The owner or operator shall submit the new batch mass input
limitation in accordance with Sec. 63.1327(c).
    (j) Process changes to new SAN affected sources using a batch
process. Whenever process changes, as described in paragraph (j)(1) of
this section, are made to a new affected source producing SAN using a
batch process that could reasonably be expected to adversely impact the
compliance status (i.e., achievement of 84 percent emission reduction)
of the affected source, the owner or operator shall comply with
paragraphs (j)(2) and (3) of this section.
* * * * *
    (3) Where the redetermined percent reduction is less than 84
percent, the owner or operator of the affected source shall submit a
report as specified in Sec. 63.1327(d) and shall comply with
Sec. 63.1322(a)(3) and all associated provisions in accordance with
Sec. 63.1310(i).
    43. Section 63.1324 is amended by revising the section title and
paragraphs (a) introductory text, (a)(2), (c) introductory text, and
(c)(4)(ii), (c)(7), (d) introductory text, (e) introductory text, and
(e)(2), (f)(1) introductory text, (f)(1)(ii), and (f)(3); and removing
paragraph (e)(3), to read as follows:

Sec. 63.1324  Batch process vents--monitoring equipment.

    (a) General requirements. Each owner or operator of a batch process
vent or aggregate batch vent stream that uses a control device to
comply with the requirements in Sec. 63.1322(a) or Sec. 63.1322(b),
shall install the monitoring equipment specified in paragraph (c) of
this section. All monitoring equipment shall be installed, calibrated,
maintained, and operated according to manufacturer's specifications or
other written procedures that provide adequate assurance that the
equipment would reasonably be expected to monitor accurately.
* * * * *
    (2) Except as otherwise provided in this subpart, the owner or
operator shall operate control devices such that the daily average of
monitored parameters, established as specified in paragraph (f) of this
section, remains above the minimum level or below the maximum level, as
appropriate.
* * * * *
    (c) Batch process vent and aggregate batch vent stream monitoring
equipment. The monitoring equipment specified in paragraphs (c)(1)
through (c)(8) of this section shall be installed as specified in
paragraph (a) of this section. The parameters to be monitored are
specified in Table 7 of this subpart.
* * * * *
    (4) * * *
    (ii) A flow measurement device equipped with a continuous recorder
shall be located at the scrubber influent for liquid flow. Gas stream
flow shall be determined using one of the procedures specified in
paragraphs (c)(4)(ii)(A) through (c)(4)(ii)(C) of this section.
    (A) The owner or operator may determine gas stream flow using the
design blower capacity, with appropriate adjustments for pressure drop.
    (B) If the scrubber is subject to regulations in 40 CFR parts 264
through 266 that have required a determination of the liquid to gas (L/
G) ratio prior to the applicable compliance date for this subpart, the
owner or operator may determine gas stream flow by the method that had
been utilized to comply with those regulations. A determination that
was conducted prior to the compliance date for this subpart may be
utilized to comply with this subpart if it is still representative.
    (C) The owner or operator may prepare and implement a gas stream
flow determination plan that documents an appropriate method which will
be used to determine the gas stream flow. The plan shall require
determination of gas stream flow by a method which will at least
provide a value for either a representative or the highest gas stream
flow anticipated in the scrubber during representative operating
conditions other than start-ups, shutdowns, or malfunctions. The plan
shall include a description of the methodology to be followed and an
explanation of how the selected methodology will reliably determine the
gas stream flow, and a description of the records that will be
maintained to document the determination of gas stream flow. The owner
or operator shall maintain the plan as specified in Sec. 63.1335(a).
* * * * *
    (7) Where a carbon adsorber is used, an integrating regeneration
steam flow or nitrogen flow, or pressure monitoring device having an
accuracy of <plus-minus>10 percent of the flow rate, level, or
pressure, or better, capable of recording the total regeneration steam
flow or nitrogen flow, or pressure (gauge or absolute) for each
regeneration cycle; and a carbon bed temperature monitoring device,
capable of recording the carbon bed temperature after each regeneration
and within 15 minutes of

[[Page 11680]]

completing any cooling cycle are required.
* * * * *
    (d) Alternative monitoring parameters. An owner or operator of a
batch process vent or aggregate batch vent stream may request approval
to monitor parameters other than those required by paragraph (c) of
this section. The request shall be submitted according to the
procedures specified in Sec. 63.1327(f) and Sec. 63.1335(f). Approval
shall be requested if the owner or operator:
* * * * *
    (e) Monitoring of bypass lines. Owners or operators of a batch
process vent or aggregate batch vent stream using a vent system that
contains bypass lines that could divert emissions away from a control
device used to comply with Sec. 63.1322(a) or Sec. 63.1322(b) shall
comply with either paragraph (e)(1) or (e)(2) of this section.
Equipment such as low leg drains, high point bleeds, analyzer vents,
open-ended valves or lines, and pressure relief valves needed for
safety purposes are not subject to this paragraph (e).
* * * * *
    (2) Secure the bypass line damper or valve in the non-diverting
position with a car-seal or a lock-and-key type configuration. A visual
inspection of the seal or closure mechanism shall be performed at least
once every month to ensure that the damper or valve is maintained in
the non-diverting position and emissions are not diverted through the
bypass line. Records shall be generated as specified in
Sec. 63.1326(e)(4).
    (f) * * *
    (1) For each parameter monitored under paragraph (c) or (d) of this
section, the owner or operator shall establish a level, defined as
either a maximum or minimum operating parameter as denoted in Table 8
of this subpart, that indicates proper operation of the control device.
The level shall be established in accordance with the procedures
specified in Sec. 63.1334. The level may be based upon a prior
performance test conducted for determining compliance with a regulation
promulgated by EPA, and the owner or operator is not required to
conduct a performance test under Sec. 63.1325, provided that the prior
performance test meets the conditions of Sec. 63.1325(b)(3).
* * * * *
    (ii) For aggregate batch vent streams using a control device to
comply with Sec. 63.1322(b)(2), the established level shall reflect the
emission reduction requirement of 90 percent specified in
Sec. 63.1322(b)(2).
* * * * *
    (3) The operating day shall be defined as part of establishing the
parameter monitoring level and shall be submitted with the information
in paragraph (f)(2) of this section. The definition of operating day
shall specify the time(s) at which an operating day begins and ends.
The operating day shall not exceed 24 hours.
* * * * *
    44. Section 63.1325 is amended by:
    a. Revising paragraphs (a), (b) introductory text, (b)(3), (b)(5),
(c) introductory text, (c)(1)(i)(A), (c)(1)(i)(B) introductory text,
(c)(1)(i)(C), (c)(1)(i)(D) introductory text, (c)(1)(ii), (c)(1)(iii)
introductory text, (c)(1)(iii)(A), (c)(1)(v), (c)(2) introductory text,
(d)(1), (d)(2)(ii), (d)(3), (d)(4), (e), and (g); and
    b. Removing paragraph (b)(6), to read as follows:

Sec. 63.1325  Batch process vents--performance test methods and
procedures to determine compliance.

    (a) Use of a flare. When a flare is used to comply with
Sec. 63.1322(a)(1), Sec. 63.1322(a)(3), Sec. 63.1322(b)(1), or
Sec. 63.1322(b)(3), the owner or operator of an affected source shall
comply with Sec. 63.1333(e).
    (b) Exceptions to performance tests. An owner or operator is not
required to conduct a performance test when a control device specified
in paragraphs (b)(1) through (b)(5) of this section is used to comply
with Sec. 63.1322(a)(2) or (a)(3).
* * * * *
    (3) A control device for which a performance test was conducted for
determining compliance with a regulation promulgated by the EPA and the
test was conducted using the same Methods specified in this section and
either no deliberate process changes have been made since the test, or
the owner or operator can demonstrate that the results of the
performance test, with or without adjustments, reliably demonstrate
compliance despite process changes. Recovery devices used for
controlling emissions from continuous process vents complying with
Sec. 63.1322(a)(3) are also eligible for the exemption described in
this paragraph (b)(3).
* * * * *
    (5) A hazardous waste incinerator for which the owner or operator
has been issued a final permit under 40 CFR part 270 and complies with
the requirements of 40 CFR part 264, subpart O, or has certified
compliance with the interim status requirements of 40 CFR part 265,
subpart O.
    (c) Batch process vent testing and procedures for compliance with
Sec. 63.1322(a)(2). Except as provided in paragraph (a) or (b) of this
section, an owner or operator using a control device to comply with
Sec. 63.1322(a)(2) shall conduct a performance test using the
procedures specified in paragraph (c)(1) of this section in order to
determine the control efficiency of the control device. An owner or
operator shall determine the percent reduction for the batch cycle
using the control efficiency of the control device as specified in
paragraphs (c)(2)(i) through (c)(2)(iii) of this section and the
procedures specified in paragraph (c)(2) of this section. Compliance
may be based on either total organic HAP or TOC. For purposes of this
paragraph (c), the term ``batch emission episode'' shall have the
meaning ``period of the batch emission episode selected for control,''
which may be the entire batch emission episode or may only be a portion
of the batch emission episode.
    (1) * * *
    (i) * * *
    (A) Alternatively, an owner or operator may choose to test only
those periods of the batch emission episode during which the emission
rate for the entire episode can be determined or during which the
emissions are greater than the average emission rate of the batch
emission episode. The owner or operator choosing either of these
options shall develop an emission profile for the entire batch emission
episode, based on either process knowledge or test data collected, to
demonstrate that test periods are representative. Examples of
information that could constitute process knowledge include
calculations based on material balances and process stoichiometry.
Previous test results may be used provided the results are still
relevant to the current batch process vent conditions.
    (B) Method 1 or 1A, 40 CFR part 60, appendix A, as appropriate,
shall be used for selection of the sampling sites if the flow measuring
device is a pitot tube, except that references to particulate matter in
Method 1A do not apply for the purposes of this subpart. No traverse is
necessary when Method 2A or 2D, 40 CFR part 60, appendix A is used to
determine gas stream volumetric flow rate. Inlet sampling sites shall
be located as specified in paragraphs (c)(1)(i)(B)(1) and
(c)(1)(i)(B)(2) of this section. Outlet sampling sites shall be located
at the outlet of the control device prior to release to the atmosphere.
* * * * *

[[Page 11681]]

    (C) Gas stream volumetric flow rate and/or average batch vent flow
rate shall be determined as specified in Sec. 63.1323(e).
    (D) Method 18 or Method 25A, 40 CFR part 60, appendix A shall be
used to determine the concentration of organic HAP or TOC, as
appropriate. Alternatively, any other method or data that has been
validated according to the applicable procedures in Method 301 of
appendix A of this part may be used. The use of Method 25A, 40 CFR part
60, appendix A shall conform with the requirements in paragraphs
(c)(1)(i)(D)(1) and (c)(1)(i)(D)(2) of this section.
* * * * *
    (ii) If an integrated sample is taken over the entire test period
to determine average batch vent concentration of TOC or total organic
HAP, emissions per batch emission episode shall be calculated using
Equations 19 and 20 of this subpart.
[GRAPHIC] [TIFF OMITTED] TP09MR99.040

[GRAPHIC] [TIFF OMITTED] TP09MR99.048

Where:

E<INF>episode</INF> = Inlet or outlet emissions, kg/episode.
K = Constant, 2.494  x  10<SUP>-6</SUP> (ppmv)<SUP>-1</SUP> (gm-mole/
scm) (kg/gm) (min/hr), where standard temperature is 20  deg.C.
C<INF>j</INF> = Average inlet or outlet concentration of TOC or sample
organic HAP component j of the gas stream for the batch emission
episode, dry basis, ppmv.
M<INF>j</INF> = Molecular weight of TOC or sample organic HAP component
j of the gas stream, gm/gm-mole.
AFR = Average inlet or outlet flow rate of gas stream for the batch
emission episode, dry basis, scmm.
T<INF>h</INF> = Hours/episode
n = Number of organic HAP in stream. Note: Summation is not applicable
if TOC emissions are being estimated using a TOC concentration measured
using Method 25A, 40 CFR part 60, appendix A.

    (iii) If grab samples are taken to determine average batch vent
concentration of TOC or total organic HAP, emissions shall be
calculated according to paragraphs (c)(1)(iii)(A) and (B) of this
section.
    (A) For each measurement point, the emission rates shall be
calculated using Equations 21 and 22 of this subpart.
[GRAPHIC] [TIFF OMITTED] TP09MR99.041

[GRAPHIC] [TIFF OMITTED] TP09MR99.042

Where:

E<INF>point</INF> = Inlet or outlet emission rate for the measurement
point, kg/hr.
K = Constant, 2.494  x  10<INF>-6</INF> (ppmv)<SUP>-1</SUP> (gm-mole/
scm) (kg/gm) (min/hr), where standard temperature is 20  deg.C.
C<INF>j</INF> = Inlet or outlet concentration of TOC or sample organic
HAP component j of the gas stream, dry basis, ppmv.
M<INF>j</INF> = Molecular weight of TOC or sample organic HAP component
j of the gas stream, gm/gm-mole.
FR=Inlet or outlet flow rate of gas stream for the measurement point,
dry basis, scmm.
n=Number of organic HAP in stream. Note: Summation is not applicable if
TOC emissions are being estimated using a TOC concentration measured
using Method 25A, 40 CFR part 60, appendix A.
* * * * *
    (v) If the batch process vent entering a boiler or process heater
with a design capacity less than 44 megawatts is introduced with the
combustion air or as a secondary fuel, the weight-percent reduction of
total organic HAP or TOC across the device shall be determined by
comparing the TOC or total organic HAP in all combusted batch process
vents and primary and secondary fuels with the TOC or total organic
HAP, respectively, exiting the combustion device.
    (2) The percent reduction for the batch cycle shall be determined
using Equation 26 of this subpart and the control device efficiencies
specified in paragraphs (c)(2)(i) through (c)(2)(iii) of this section.
All information used to calculate the batch cycle percent reduction,
including a definition of the batch cycle identifying all batch
emission episodes, shall be recorded as specified in
Sec. 63.1326(b)(2). This information shall include identification of
those batch emission episodes, or portions thereof, selected for
control.

[[Page 11682]]

[GRAPHIC] [TIFF OMITTED] TP09MR99.043

Where:

PR=Percent reduction
E<INF>unc</INF>=Mass rate of TOC or total organic HAP for uncontrolled
batch emission episode i, kg/hr.
E<INF>inlet,con</INF>=Mass rate of TOC or total organic HAP for
controlled batch emission episode i at the inlet to the control device,
kg/hr.
R=Control efficiency of control device as specified in paragraphs
(c)(2)(i) through (c)(2)(iii) of this section.
n=Number of uncontrolled batch emission episodes, controlled batch
emission episodes, and control devices. The value of n is not
necessarily the same for these three items.
* * * * *
    (d) * * *
    (1) Sampling sites shall be located at the inlet and outlet of the
scrubber or other halogen reduction device used to reduce halogen
emissions in complying with Sec. 63.1322(c)(1) or at the outlet of the
halogen reduction device used to reduce halogen emissions in complying
with Sec. 63.1322(c)(2).
    (2) * * *
    (ii) Gas stream volumetric flow rate and/or average batch vent flow
rate shall be determined as specified in Sec. 63.1323(e).
    (3) To determine compliance with the percent reduction specified in
Sec. 63.1322(c)(1), the mass emissions for any hydrogen halides and
halogens present at the inlet of the scrubber or other halogen
reduction device shall be summed together. The mass emissions of any
hydrogen halides or halogens present at the outlet of the scrubber or
other halogen reduction device shall be summed together. Percent
reduction shall be determined by subtracting the outlet mass emissions
from the inlet mass emissions and then dividing the result by the inlet
mass emissions and multiplying by 100.
    (4) To determine compliance with the emission limit specified in
Sec. 63.1322(c)(2), the annual mass emissions for any hydrogen halides
and halogens present at the outlet of the halogen reduction device and
prior to any combustion device shall be summed together and compared to
the emission limit specified in Sec. 63.1322(c)(2).
* * * * *
    (e) Aggregate batch vent stream testing for compliance with
Sec. 63.1322 (b)(2) or (b)(3). Except as specified in paragraphs (e)(1)
through (e)(2) of this section, owners or operators of aggregate batch
vent streams complying with Sec. 63.1322(b)(2) or (b)(3) shall conduct
a performance test using the performance testing procedures for
continuous process vents in Sec. 63.116(c).
    (1) For purposes of this subpart, when the provisions of
Sec. 63.116(c) specify that Method 18, 40 CFR part 60, appendix A,
shall be used, Method 18 or Method 25A, 40 CFR part 60, appendix A, may
be used. The use of Method 25A, 40 CFR part 60, appendix A, shall
conform with the requirements in paragraphs (e)(1)(i) and (e)(1)(ii) of
this section.
    (i) The organic HAP used as the calibration gas for Method 25A, 40
CFR part 60, appendix A, shall be the single organic HAP representing
the largest percent by volume of the emissions.
    (ii) The use of Method 25A, 40 CFR part 60, appendix A, is
acceptable if the response from the high-level calibration gas is at
least 20 times the standard deviation of the response from the zero
calibration gas when the instrument is zeroed on the most sensitive
scale.
    (2) When Sec. 63.116(c)(4) refers to complying with an emission
reduction of 98 percent, for purposes of this subpart, the 90 percent
reduction requirement specified in Sec. 63.1322(b)(2) shall apply.
* * * * *
    (g) Batch mass input limitation. The batch mass input limitation
required by Sec. 63.1322(g)(1) shall be determined by the owner or
operator such that annual emissions for the batch process vent remain
less than the level specified in Sec. 63.1323(d). The batch mass input
limitation required by Sec. 63.1322(f)(1) shall be determined by the
owner or operator such that annual emissions remain at a level that
ensures that said batch process vent remains a Group 2 batch process
vent, given the actual annual flow rate for said batch process vent
determined according to the procedures specified in Sec. 63.1323(e)(3).
The batch mass input limitation shall be determined using the same
basis, as described in Sec. 63.1323(a)(1), used to make the group
determination (i.e., expected mix of products or highest-HAP recipe.)
The establishment of the batch mass input limitation is not dependent
upon any past production or activity level.
    (1) If the expected mix of products serves as the basis for the
batch mass input limitation, the batch mass input limitation shall be
determined based on any foreseeable combination of products that the
owner or operator expects to manufacture.
    (2) If the single highest-HAP recipe serves as the basis for the
batch mass input limitation, the batch mass input limitation shall be
determined based solely on the production of the single highest-HAP
recipe, considering all products produced or processed in the batch
unit operation.
    45. Section 63.1326 is amended by:
    a. Revising paragraphs (a) introductory text, (a)(1), and (a)(2),
(a)(3)(i), (a)(4), (a)(7), (a)(8), (a)(9), (b) introductory text,
(b)(2), (b)(3)(ii), (b)(3)(iii), (b)(4)(iv), (d)(1), (d)(2), (e)
introductory text, (e)(1)(i), (e)(1)(ii), (e)(2) introductory text,
(e)(2)(ii), (e)(4), and (f); and
    b. Adding paragraph (g), to read as follows:

Sec. 63.1326  Batch process vents--recordkeeping provisions.

    (a) Group determination records for batch process vents. Except as
provided in paragraphs (a)(7) and (a)(8) of this section, each owner or
operator of an affected source shall maintain the records specified in
paragraphs (a)(1) through (a)(6) of this section for each batch process
vent subject to the group determination procedures of Sec. 63.1323.
Except for paragraph (a)(1) of this section, the records required by
this paragraph (a) are restricted to the information developed and used
to make the group determination under Secs. 63.1323(b) through
63.1323(g), as appropriate. If an owner or operator did not need to
develop certain information (e.g., annual average batch vent flow rate)
to determine the group status, this paragraph (a) does not require that
additional information be developed. Paragraph (a)(9) of this section
specifies the recordkeeping requirements for Group 2 batch process
vents that are exempt from the batch mass input limitation provisions,
as allowed under Sec. 63.1322(h).
    (1) An identification of each unique product that has emissions
from one or

[[Page 11683]]

more batch emission episodes venting from the batch process vent, along
with an identification of the single highest-HAP recipe for each
product and the mass of HAP fed to the reactor for that recipe.
    (2) A description of, and an emission estimate for, each batch
emission episode, and the total emissions associated with one batch
cycle, as described in either paragraph (a)(2)(i) or (a)(2)(ii) of this
section, as appropriate.
    (i) If the group determination is based on the expected mix of
products, records shall include the emission estimates for the single
highest-HAP recipe of each unique product identified in paragraph
(a)(1) of this section that was considered in making the group
determination under Sec. 63.1323.
    (ii) If the group determination is based on the single highest-HAP
recipe (considering all products produced or processed in the batch
unit operation), records shall include the emission estimates for the
single highest-HAP recipe.
    (3) * * *
    (i) For Group 2 batch process vents, said emissions shall be
determined at the batch mass input limitation.
* * * * *
    (4) The annual average batch vent flow rate for the batch process
vent, determined in accordance with Sec. 63.1323(e).
* * * * *
    (7) If a batch process vent is subject to Sec. 63.1322 (a) or (b),
none of the records in paragraphs (a)(1) through (a)(6) of this section
are required.
    (8) If the total annual emissions from the batch process vent
during the group determination are less than the appropriate level
specified in Sec. 63.1323(d), only the records in paragraphs (a)(1)
through (a)(3) of this section are required.
    (9) For each Group 2 batch process vent that is exempt from the
batch mass input limitation provisions because it meets the criteria of
Sec. 63.1322(h), the records specified in paragraphs (a)(9)(i) and (ii)
shall be maintained.
    (i) Documentation of the maximum design capacity of the TPPU; and
    (ii) The mass of HAP or material that can be charged annually to
the batch unit operation at the maximum design capacity.
    (b) Compliance demonstration records. Each owner or operator of a
batch process vent or aggregate batch vent stream complying with
Sec. 63.1322(a) or (b), shall keep the following records, as
applicable, readily accessible:
* * * * *
    (2) If the owner or operator of a batch process vent has chosen to
comply with Sec. 63.1322(a)(2), records documenting the batch cycle
percent reduction as specified in Sec. 63.1325(c)(2); and
    (3) * * *
    (ii) All visible emission readings, heat content determinations,
flow rate measurements, and exit velocity determinations made during
the compliance determination required by Sec. 63.1333(e); and
    (iii) Periods when all pilot flames were absent.
    (4) * * *
    (iv) For a scrubber or other halogen reduction device following a
combustion device to control halogenated batch process vents or
halogenated aggregate batch vent streams, the percent reduction of
total hydrogen halides and halogens as determined under
Sec. 63.1325(d)(3) or the emission limit determined under
Sec. 63.1325(d)(4).
* * * * *
    (d) * * *
    (1) The owner or operator of a Group 2 batch process vent that has
chosen to comply with Sec. 63.1322(g) shall keep the following records
readily accessible:
    (i) Records designating the established batch mass input limitation
required by Sec. 63.1322(g)(1) and specified in Sec. 63.1325(g).
    (ii) Records specifying the mass of HAP or material charged to the
batch unit operation.
    (2) The owner or operator of a Group 2 batch process vent that has
chosen to comply with Sec. 63.1322(f) shall keep the following records
readily accessible:
    (i) Records designating the established batch mass input limitation
required by Sec. 63.1322(f)(1) and specified in Sec. 63.1325(g).
    (ii) Records specifying the mass of HAP or material charged to the
batch unit operation.
    (e) Controlled batch process vent continuous compliance records.
Each owner or operator of a batch process vent that has chosen to use a
control device to comply with Sec. 63.1322(a) shall keep the following
records, as applicable, readily accessible:
    (1) * * *
    (i) For flares, the records specified in Table 7 of this subpart
shall be maintained in place of continuous records.
    (ii) For carbon adsorbers, the records specified in Table 7 of this
subpart shall be maintained in place of batch cycle daily averages.
    (2) Records of the batch cycle daily average value of each
continuously monitored parameter, except as provided in paragraph
(e)(2)(iii) of this section, as calculated using the procedures
specified in paragraphs (e)(2)(i) and (e)(2)(ii) of this section.
* * * * *
    (ii) Monitoring data recorded during periods of monitoring system
breakdowns, repairs, calibration checks, and zero (low-level) and high-
level adjustments shall not be included in computing the batch cycle
daily averages. In addition, monitoring data recorded during periods of
non-operation of the TPPU (or specific portion thereof) resulting in
cessation of organic HAP emissions, or periods of start-up, shutdown,
or malfunction shall not be included in computing the batch cycle daily
averages.
* * * * *
    (4) Where a seal or closure mechanism is used to comply with
Sec. 63.1324(e)(2), hourly records of whether a diversion was detected
at any time are not required. The owner or operator shall record
whether the monthly visual inspection of the seals or closure
mechanisms has been done, and shall record the occurrence of all
periods when the seal mechanism is broken, the bypass line damper or
valve position has changed, or the key for a lock-and-key type
configuration has been checked out, and records of any car-seal that
has broken.
* * * * *
    (f) Aggregate batch vent stream continuous compliance records. In
addition to the records specified in paragraphs (b) and (c) of this
section, each owner or operator of an aggregate batch vent stream using
a control device to comply with Sec. 63.1322(b)(1) or (b)(2) shall keep
the following records readily accessible:
    (1) Continuous records of the equipment operating parameters
specified to be monitored under Sec. 63.1324(c) and listed in Table 7
of this subpart, as applicable, or specified by the Administrator in
accordance with Sec. 63.1327(f), as allowed under Sec. 63.1324(d), with
the exceptions listed in (f)(1)(i) and (f)(1)(ii) of this section.
    (i) For flares, the records specified in Table 7 of this subpart
shall be maintained in place of continuous records.
    (ii) For carbon adsorbers, the records specified in Table 7 of this
subpart shall be maintained in place of daily averages.
    (2) Records of the daily average value of each continuously
monitored parameter for each operating day determined according to the
procedures specified in Sec. 63.1335(d).
    (3) For demonstrating compliance with the monitoring of bypass
lines as specified in Sec. 63.1324(e), records as

[[Page 11684]]

specified in paragraphs (e)(3) or (e)(4) of this section, as
appropriate.
    (g) Documentation supporting the establishment of the batch mass
input limitation shall include the information specified in paragraphs
(g)(1) through (g)(5) of this section, as appropriate.
    (1) Identification of whether the purpose of the batch mass input
limitation is to comply with Sec. 63.1322(f)(1) or (g)(1).
    (2) Identification of whether the batch mass input limitation is
based on the single highest-HAP recipe (considering all products) or on
the expected mix of products for the batch process vent as allowed
under Sec. 63.1323(a)(1).
    (3) Definition of the operating year, for the purposes of
determining compliance with the batch mass input limitation.
    (4) If the batch mass input limitation is based on the expected mix
of products, the owner or operator shall provide documentation that
describes as many scenarios for differing mixes of products (i.e., how
many of each type of product) as the owner or operator desires the
flexibility to accomplish. Alternatively, the owner or operator shall
provide a description of the relationship among the mix of products
that will allow a determination of compliance with the batch mass input
limitation under any number of scenarios.
    (5) The mass of HAP or material allowed to be charged to the batch
unit operation per year under the batch mass input limitation.
    46. Section 63.1327 is amended by:
    a. Revising paragraph (a) introductory text, (b), (c) introductory
text, (c)(2), (d), (e), and (g);
    b. Removing paragraph (c)(3); and
    c. Adding paragraphs (a)(5) and (a)(6), to read as follows:

Sec. 63.1327  Batch process vents--reporting requirements.

    (a) The owner or operator of a batch process vent or aggregate
batch vent stream at an affected source shall submit the information
specified in paragraphs (a)(1) through (a)(6) of this section, as
appropriate, as part of the Notification of Compliance Status specified
in Sec. 63.1335(e)(5).
* * * * *
    (5) For each Group 2 batch process vent that is exempt from the
batch mass input limitation provisions because it meets the criteria of
Sec. 63.1322(h), the information specified in Sec. 63.1326(a)(1)
through (3), and the information specified in Sec. 63.1326(a)(4)
through (6) as applicable, calculated at the conditions specified in
Sec. 63.1322(h).
    (6) When engineering assessment has been used to estimate emissions
from a batch emissions episode and the criteria specified in
Sec. 63.1323(b)(6)(i)(A) or (B) have been met, the owner or operator
shall submit the information demonstrating that the criteria specified
in Sec. 63.1323(b)(6)(i)(A) or (B) have been met as part of the
Notification of Compliance Status required by Sec. 63.1335(e)(5).
    (b) Whenever a process change, as defined in Sec. 63.1323(i)(1), is
made that causes a Group 2 batch process vent to become a Group 1 batch
process vent, the owner or operator shall notify the Administrator and
submit a description of the process change within 180 days after the
process change is made or with the next Periodic Report, whichever is
later. The owner or operator of an affected source shall comply with
the Group 1 batch process vent provisions in Secs. 63.1321 through
63.1327 in accordance with Sec. 63.480(i)(2)(ii).
    (c) Whenever a process change, as defined in Sec. 63.1323(i)(1), is
made that causes a Group 2 batch process vent with annual emissions
less than the level specified in Sec. 63.1323(d) for which the owner or
operator has chosen to comply with Sec. 63.1322(g) to have annual
emissions greater than or equal to the level specified in
Sec. 63.1323(d) but remains a Group 2 batch process vent, or if a
process change is made that requires the owner or operator to
redetermine the batch mass input limitation as specified in
Sec. 63.1323(i)(3), the owner or operator shall submit a report within
180 days after the process change is made or with the next Periodic
Report, whichever is later. The following information shall be
submitted:
* * * * *
    (2) The batch mass input limitation determined in accordance with
Sec. 63.1322(f)(1).
    (d) Whenever a process change, as defined in Sec. 63.1323(j)(1), is
made that causes the percent reduction for all process vents at a new
SAN affected source using a batch process to be less than 84 percent,
the owner or operator shall notify the Administrator and submit a
description of the process change within 180 days after the process
change is made or with the next Periodic Report, whichever is later.
The owner or operator shall comply with Sec. 63.1322(a)(3) and all
associated provisions in accordance with Sec. 63.1310(i).
    (e) The owner or operator is not required to submit a report of a
process change if one of the conditions specified in paragraphs (e)(1)
or (e)(2) of this section is met.
    (1) The change does not meet the description of a process change in
Sec. 63.1323(i) or (j).
    (2) The redetermined group status remains Group 2 for an individual
batch process vent with annual emissions greater than or equal to the
level specified in Sec. 63.1323(d) and the batch mass input limitation
does not decrease, a Group 2 batch process vent with annual emissions
less than the level specified in Sec. 63.1323(d) complying with
Sec. 63.1322(g) continues to have emissions less than the level
specified in Sec. 63.1323(d) and the batch mass input limitation does
not decrease, or the achieved emission reduction remains at 84 percent
or greater for new SAN affected sources using a batch process.
* * * * *
    (g) Owners or operators of affected sources complying with
Sec. 63.1324(e), shall comply with paragraph (g)(1) or (g)(2) of this
section, as appropriate.
    (1) Submit reports of the times of all periods recorded under
Sec. 63.1326(e)(3) when the batch process vent is diverted from the
control device through a bypass line, with the next Periodic Report.
    (2) Submit reports of all occurrences recorded under
Sec. 63.1326(e)(4) in which the seal mechanism is broken, the bypass
line damper or valve position has changed, or the key to unlock the
bypass line damper or valve was checked out, with the next Periodic
Report.
    47. Section 63.1328 is revised, to read as follows:

Sec. 63.1328  Heat exchange systems provisions.

    (a) Except as specified in paragraph (b) of this section, each
owner or operator of an affected source shall comply with Sec. 63.104,
with the differences noted in paragraphs (c) through (h) of this
section, for the purposes of this subpart.
    (b) The provisions of paragraph (a) of this section do not apply to
each process contact cooling tower that is associated with an existing
affected source manufacturing PET.
    (c) When the term ``chemical manufacturing process unit'' is used
in Sec. 63.104, the term ``thermoplastic product process unit'' shall
apply for purposes of this subpart, with the exception noted in
paragraph (d) of this section.
    (d) When the phrase ``a chemical manufacturing process unit meeting
the conditions of Sec. 63.100(b)(1) through (b)(3) of this subpart,
except for chemical manufacturing process units meeting the condition
specified in Sec. 63.100(c) of this subpart'' is used in

[[Page 11685]]

Sec. 63.104(a), the term ``a TPPU, except for TPPUs meeting the
condition specified in Sec. 63.1310(b)'' shall apply for purposes of
this subpart.
    (e) When Sec. 63.104 refers to Table 4 of subpart F of this part or
Table 9 of subpart G of this part, the owner or operator is only
required to consider organic HAP listed on Table 6 of this subpart,
except for ethylene glycol which need not be considered under this
section, for purposes of this subpart.
    (f) When Sec. 63.104(c)(3) and Sec. 63.104(f)(1) specify that the
monitoring plan and records required by Sec. 63.104(f)(1)(i) through
(f)(1)(iv) shall be kept as specified in Sec. 63.103(c), the provisions
of Sec. 63.1335(a) and Sec. 63.1335(h) shall apply for purposes of this
subpart.
    (g) When Sec. 63.104(f)(2) requires information to be reported in
the Periodic Reports required by Sec. 63.152(c), the owner or operator
shall instead report the information specified in Sec. 63.104(f)(2) in
the Periodic Reports required by Sec. 63.1335(e)(6), for the purposes
of this subpart.
    (h) The compliance date for heat exchange systems subject to the
provisions of this section is specified in Sec. 63.1311.
    48. Section 63.1329 is amended by revising paragraphs (a), (c)
introductory text, (c)(1)(i) through (c)(1)(iii), and (c)(2), to read
as follows:

Sec. 63.1329  Process contact cooling towers provisions.

    (a) The owner or operator of each new affected source that
manufactures PET is required to comply with paragraph (b) of this
section. The owner or operator of each existing affected source that
manufactures PET using a continuous terephthalic acid high viscosity
multiple end finisher process that utilizes a process contact cooling
tower shall comply with paragraph (c) of this section, and is not
required to comply with paragraph (b) of this section. The compliance
date for process contact cooling towers subject to the provisions of
this section is specified in Sec. 63.1311.
* * * * *
    (c) Existing affected source requirements. The owner or operator of
an existing affected source subject to this section who manufactures
PET using a continuous terephthalic acid high viscosity multiple end
finisher process, and who is subject or becomes subject to 40 CFR part
60, subpart DDD, shall maintain an ethylene glycol concentration in the
process contact cooling tower at or below 4.0 percent by weight
averaged on a daily basis over a rolling 14-day period of operating
days. Compliance with this paragraph (c) shall be determined as
specified in paragraphs (c)(1) through (c)(4) of this section. It
should be noted that compliance with this paragraph (c) does not exempt
owners or operators from complying with the provisions of Sec. 63.1330
for those process wastewater streams that are sent to the process
contact cooling tower.
    (1) * * *
    (i) At least one sample per operating day shall be collected using
the procedures specified in 40 CFR 60.564(j)(1)(i). An average ethylene
glycol concentration by weight shall be calculated on a daily basis
over a rolling 14-day period of operating days. Each daily average
ethylene glycol concentration so calculated constitutes a performance
test.
    (ii) The owner or operator may elect to reduce the sampling program
to any 14 consecutive operating day period once every two calendar
months, if at least seventeen consecutive 14-day rolling average
concentrations immediately preceding the reduced sampling program are
each less than 1.2 weight percent ethylene glycol. If the average
concentration obtained over the 14 operating day sampling during the
reduced test period exceeds the upper 95 percent confidence interval
calculated from the most recent test results in which no one 14-day
average exceeded 1.2 weight percent ethylene glycol, then the owner or
operator shall reinstitute a daily sampling program. The 95 percent
confidence interval shall be calculated as specified in paragraph
(c)(1)(iii) of this section. A reduced program may be reinstituted if
the requirements specified in this paragraph (c)(1)(ii) are met.
    (iii) The upper 95 percent confidence interval shall be calculated
using the Equation 27 of this subpart:
[GRAPHIC] [TIFF OMITTED] TP09MR99.044

Where:

CI<INF>95</INF>=95 percent confidence interval
X<INF>i</INF>=daily ethylene glycol concentration for each operating
day used to calculate each 14-day rolling average used in test results
to justify implementing the reduced testing program.
n=number of ethylene glycol concentrations.

    (2) Measuring an alternative parameter, such as carbon oxygen
demand or biological oxygen demand, that is demonstrated to be directly
proportional to the ethylene glycol concentration shall be allowed.
Such parameter shall be measured during the initial 14-day performance
test during which the facility is shown to be in compliance with the
ethylene glycol concentration standard whereby the ethylene glycol
concentration is determined using the procedures described in paragraph
(c)(1) of this section. The alternative parameter shall be measured on
a daily basis and the average value of the alternative parameter shall
be calculated on a daily basis over a rolling 14-day period of
operating days. Each daily average value of the alternative parameter
constitutes a performance test.
* * * * *
    49. Section 63.1330 is amended by revising paragraphs (a) and (b)
and adding paragraph (c), to read as follows:

Sec. 63.1330  Wastewater provisions.

    (a) Except as specified in paragraphs (d) and (e) of this section,
the owner or operator of each affected source shall comply, as
specified in paragraph (b) of this section, with the requirements of
Secs. 63.132 through 63.147 for each process wastewater stream
originating at an affected source, with the requirements of Sec. 63.148
for leak inspection provisions, and with the requirements of
Sec. 63.149 for equipment that is subject to Sec. 63.149. Further, the
owner or operator of each affected source shall comply with the
requirements of Sec. 63.105(a) for maintenance wastewater as specified
in paragraph (c) of this section.

[[Page 11686]]

    (b) The owner or operator of each affected source shall comply with
the requirements of Secs. 63.132 through 63.149, with the differences
noted in paragraphs (b)(1) through (b)(22) of this section for the
purposes of this subpart.
    (1) When the determination of equivalence criteria in
Sec. 63.102(b) is referred to in Secs. 63.132, 63.133, and 63.137, the
provisions in Sec. 63.6(g) shall apply for the purposes of this
subpart.
    (2) When the storage vessel requirements contained in Secs. 63.119
through 63.123 are referred to in Secs. 63.132 through 63.149,
Secs. 63.119 through 63.123 are applicable, with the exception of the
differences referred to in Sec. 63.1314, for the purposes of this
subpart.
    (3) When Sec. 63.146(a) requires the submission of a request for
approval to monitor alternative parameters according to the procedures
specified in Sec. 63.151(g) or Sec. 63.152(e), owners or operators
requesting to monitor alternative parameters shall follow the
procedures specified in Sec. 63.1335(g) for the purposes of this
subpart.
    (4) When Sec. 63.147(d) requires owners or operators to keep
records of the daily average value of each continuously monitored
parameter for each operating day as specified in Sec. 63.152(f), owners
and operators shall instead keep records of the daily average value of
each continuously monitored parameter as specified in Sec. 63.1335(d)
for the purposes of this subpart.
    (5) When Secs. 63.132 through 63.149 refer to an ``existing
source,'' the term ``existing affected source,'' as defined in
Sec. 63.1310(a), shall apply for the purposes of this subpart.
    (6) When Secs. 63.132 through 63.149 refer to a ``new source,'' the
term ``new affected source,'' as defined in Sec. 63.1310(a), shall
apply for the purposes of this subpart.
    (7) When Sec. 63.132(a) and (b) refer to the ``applicable dates
specified in Sec. 63.100 of subpart F of this part,'' the compliance
dates specified in Sec. 63.1311 shall apply for the purposes of this
subpart.
    (8) When Secs. 63.132 through 63.149 refer to table 8, the owners
or operator is only required to consider 1,3-butadiene for purposes of
this subpart. When Secs. 63.132 through 63.149 refer to table 9 or
table 36, the owners or operator is only required to consider organic
HAP listed on table 6 of this subpart for the purposes of this subpart,
except for ethylene glycol which need not be considered. In addition,
when Secs. 63.132 through 63.149 refer to List 1, List 2, and/or List
3, as listed in Table 36 of subpart G of this part, the owner or
operator is only required to consider organic HAP that are also listed
on Table 6 of this subpart, for the purposes of this subpart.
    (9) Whenever Secs. 63.132 through 63.149 refer to a ``chemical
manufacturing process unit,'' the term ``thermoplastic product process
unit,'' (or TPPU) as defined in Sec. 63.1312, shall apply for the
purposes of this subpart. In addition, when Sec. 63.149 refers to ``a
chemical manufacturing process unit that meets the criteria of
Sec. 63.100(b) of subpart F of this part,'' the term ``a TPPU as
defined in Sec. 63.1312(b)'' shall apply for the purposes of this
subpart.
    (10) Whenever Secs. 63.132 through 63.149 refer to a Group 1
wastewater stream or a Group 2 wastewater stream, the definitions of
these terms contained in Sec. 63.1312 shall apply for the purposes of
this subpart.
    (11) When Sec. 63.149(d) refers to ``Sec. 63.100(f) of subpart F'',
the phrase ``Sec. 63.1310(c)'' shall apply for the purposes of this
subpart. In addition, where Sec. 63.149(d) states ``and the item of
equipment is not otherwise exempt from controls by the provisions of
subparts A, F, G, or H of this part'', the phrase ``and the item of
equipment is not otherwise exempt from controls by the provisions of
subparts A, F, G, H, or JJJ of this part'' shall apply for the purposes
of this subpart.
    (12) When Sec. 63.149(e)(1) and (e)(2) refer to ``a chemical
manufacturing process unit subject to the new source requirements of 40
CFR 63.100(l)(1) or 40 CFR Sec. 63.100 (l)(2),'' the phrase ``a TPPU
that is part of a new affected source or that is a new affected
source,'' shall apply for the purposes of this subpart.
    (13) When the Notification of Compliance Status requirements
contained in Sec. 63.152(b) are referred to in Secs. 63.138 and 63.146,
the Notification of Compliance Status requirements contained in
Sec. 63.1335(e)(5) shall apply for the purposes of this subpart. In
addition, when Secs. 63.132 through 63.149 require that information be
reported according to Sec. 63.152(b) in the Notification of Compliance
Status, the owner or operator of an affected source shall report the
specified information in the Notification of Compliance Status required
by Sec. 63.1335(e)(5) for the purposes of this subpart.
    (14) When the Periodic Report requirements contained in
Sec. 63.152(c) are referred to in Sec. 63.146, the Periodic Report
requirements contained in Sec. 63.1335(e)(6) shall apply for the
purposes of this subpart. In addition, when Secs. 63.132 through 63.149
require that information be reported in the Periodic Reports required
in Sec. 63.152(c), the owner or operator of an affected source shall
report the specified information in the Periodic Reports required in
Sec. 63.1335(e)(6) for the purposes of this subpart.
    (15) When Sec. 63.143(f) specifies that owners or operators shall
establish the range that indicates proper operation of the treatment
process or control device, the owner or operator shall instead comply
with the requirements of Sec. 63.1334(b)(1), (c), or (d) for
establishing parameter level maximums/minimums for the purposes of this
subpart.
    (16) When Sec. 63.146(b)(7) and Sec. 63.146(b)(8) require that
``the information on parameter ranges specified in Sec. 63.152(b)(2)''
be reported in the Notification of Compliance Status, owners and
operators of affected sources are instead required to report the
information on parameter levels as specified in Sec. 63.1335(e)(5)(ii)
for the purposes of this subpart.
    (17) When the term ``range'' is used in Secs. 63.132 through
63.149, the term ``level'' shall apply instead for the purposes of this
subpart. This level shall be determined using the procedures specified
in Sec. 63.1334.
    (18) For the purposes of this subpart, the owner or operator of an
affected source is not required to include process wastewater streams
that contain styrene when conducting performance tests for the purposes
of calculating the required mass removal (RMR) or the actual mass
removal (AMR) under the provisions described in Sec. 63.145(f) or
Sec. 63.145(g). For purposes of this paragraph, a process wastewater
stream is considered to contain styrene if the wastewater stream meets
the requirements in paragraph (b)(18) (i), (ii), (iii), (iv), or (v) of
this section.
    (i) The wastewater stream originates at equipment that produces ABS
or ABS latex;
    (ii) The wastewater stream originates at equipment that produces
EPS;
    (iii) The wastewater stream originates at equipment that produces
MABS;
    (iv) The wastewater stream originates at equipment that produces
MBS; or
    (v) The wastewater stream originates at equipment that produces
SAN.
    (19) When the provisions of Sec. 63.139(c)(1)(ii),
Sec. 63.145(d)(4), or Sec. 63.145(i)(2) specify that Method 18, 40 CFR
part 60, appendix A, shall be used, Method 18 or Method 25A, 40 CFR
part 60, appendix A, may be used for the purposes of this subpart. The
use of Method 25A, 40 CFR part 60, appendix A, shall conform with the
requirements in paragraphs (b)(19)(i) and (b)(19)(ii) of this section.
    (i) The organic HAP used as the calibration gas for Method 25A, 40
CFR

[[Page 11687]]

part 60, appendix A, shall be the single organic HAP representing the
largest percent by volume of the emissions.
    (ii) The use of Method 25A, 40 CFR part 60, appendix A, is
acceptable if the response from the high-level calibration gas is at
least 20 times the standard deviation of the response from the zero
calibration gas when the instrument is zeroed on the most sensitive
scale.
    (20) In Sec. 63.145(j), instead of the reference to Sec. 63.11(b),
and instead of Sec. 63.145(j)(1) and Sec. 63.145(j)(2), the
requirements in Sec. 63.1333(e) shall apply.
    (21) The owner or operator of a facility which receives a Group 1
wastewater stream, or a residual removed from a Group 1 wastewater
stream, for treatment pursuant to Sec. 63.132(g) is subject to the
requirements of Sec. 63.132(g) with the differences identified in this
section, and is not subject to subpart DD of this part with respect to
that material.
    (22) When Sec. 63.132(g) refers to ``Secs. 63.133 through 63.137''
or ``Secs. 63.133 through 63.147'', the provisions in this section
63.1330 shall apply, for the purposes of this subpart.
    (c) For each affected source, the owner or operator shall comply
with the requirements for maintenance wastewater in Sec. 63.105, except
that when Sec. 63.105(a) refers to ``organic HAPs,'' the definition of
organic HAP in Sec. 63.1312 shall apply for the purposes of this
subpart.
* * * * *
    50. Section 63.1331 is amended by:
    a. Revising paragraphs (a) introductory text, (a)(2), (a)(4),
(a)(5), (a)(6) introductory text, (a)(6)(i), (a)(6)(ii)(A),
(a)(6)(ii)(B), (a)(7), (a)(8) introductory text, (a)(10), and (b);
    b. Adding paragraphs (a)(6)(iii), (a)(6)(iv), and (a)(11) through
(a)(13); and
    c. Removing and reserving paragraph (a)(9), to read as follows:

Sec. 63.1331  Equipment leak provisions.

    (a) Except as provided for in paragraphs (b) and (c) of this
section, the owner or operator of each affected source shall comply
with the requirements of subpart H of this part, with the differences
noted in paragraphs (a)(1) through (a)(13) of this section.
* * * * *
    (2) The compliance date for the equipment leak provisions contained
in this section is provided in Sec. 63.1311. Whenever subpart H of this
part refers to the compliance dates specified in any paragraph
contained in Sec. 63.100, the compliance dates listed in
Sec. 63.1311(d) shall instead apply, for the purposes of this subpart.
When Sec. 63.182(c)(4) refers to ``sources subject to subpart F,'' the
phrase ``sources subject to this subpart'' shall apply, for the
purposes of this subpart. In addition, extensions of compliance dates
are addressed by Sec. 63.1311(e) instead of Sec. 63.182(a)(6), for the
purposes of this subpart.
* * * * *
    (4) As specified in Sec. 63.1335(e)(5), the Notification of
Compliance Status required by paragraphs Sec. 63.182(a)(2) and
Sec. 63.182(c) shall be submitted within 150 days (rather than 90 days)
of the applicable compliance date specified in Sec. 63.1311 for the
equipment leak provisions.
    (5) The information specified by Sec. 63.182(a)(3) and
Sec. 63.182(d) (i.e., Periodic Reports) shall be submitted as part of
the Periodic Reports required by Sec. 63.1335(e)(6).
    (6) For pumps, valves, connectors, and agitators in heavy liquid
service; pressure relief devices in light liquid or heavy liquid
service; and instrumentation systems, owners or operators of affected
sources producing PET shall comply with the requirements of paragraphs
(a)(6)(i) and (a)(6)(ii) of this section instead of with the
requirements of Sec. 63.169. Owners or operators of PET affected
sources shall comply with all other provisions of subpart H of this
part for pumps, valves, connectors, and agitators in heavy liquid
service; pressure relief devices in light liquid or heavy liquid
service; and instrumentation systems, except as specified in paragraphs
(a)(6)(iii) through (a)(6)(iv) of this section.
    (i) A leak is determined to be detected if there is evidence of a
potential leak found by visual, audible, or olfactory means. Method 21,
40 CFR part 60, appendix A may not be used to determine the presence or
absence of a leak.
    (ii)(A) When a leak is detected, it shall be repaired as soon as
practical, but not later than 15 days after it is detected, except as
provided in Sec. 63.171.
    (B) The first attempt at repair shall be made no later than 5 days
after each leak is detected.
* * * * *
    (iii) An owner or operator is not required to develop an initial
list of identification numbers as would otherwise be required under
Sec. 63.181(b)(1)(i) or Sec. 63.181(b)(4).
    (iv) When recording the detection of a leak under
Sec. 63.182(d)(1), the owner or operator of an affected source shall
comply with paragraphs (a)(6)(iv)(A) through (a)(6)(iv)(B) of this
section.
    (A) When complying with Sec. 63.181(d)(1), provide an
identification number for the leaking equipment at the time of
recordkeeping. Further, the owner or operator is not required to record
the identification number of the instrument (i.e., Method 21
instrument) because the use of Method 21 is not an acceptable method
for determining a leak under this paragraph (a)(6).
    (B) An owner or operator is not required to comply with
Sec. 63.181(d)(4) which requires a record of the maximum instrument
reading measured by Method 21 of 40 CFR part 60, appendix A.
    (7) When Sec. 63.166(b)(4)(i) refers to Table 9 of subpart G of
this part, the owner or operator is only required to consider organic
HAP listed on Table 6 of this subpart for purposes of this subpart,
except for ethylene glycol which need not be considered.
    (8) When the provisions of subpart H of this part specify that
Method 18, 40 CFR part 60, appendix A, shall be used, Method 18 or
Method 25A, 40 CFR part 60, appendix A, may be used for the purposes of
this subpart. The use of Method 25A, 40 CFR part 60, appendix A, shall
conform with the requirements in paragraphs (a)(8)(i) and (a)(8)(ii) of
this section.
* * * * *
    (9) [Reserved.]
    (10) If specific items of equipment, comprising part of a process
unit subject to this subpart, are managed by different administrative
organizations (e.g., different companies, affiliates, departments,
divisions, etc.), those items of equipment may be aggregated with any
TPPU within the affected source for all purposes under subpart H of
this part, providing there is no delay in achieving the applicable
compliance date.
    (11) When the terms ``equipment'' and ``equipment leak'' are used
in subpart H of this part, the definitions of these terms in
Sec. 63.1312 shall apply for the purposes of this subpart.
    (12) The phrase ``the provisions of subparts F, I, or JJJ of this
part'' shall apply instead of the phrase ``the provisions of subpart F
or I of this part'' throughout Secs. 63.163 and 63.168, for the
purposes of this subpart. In addition, the phrase ``subparts F, I, and
JJJ'' shall apply instead of the phrase ``subparts F and I'' in
Sec. 63.174(c)(2)(iii), for the purposes of this subpart.
    (13) An owner or operator using a flare to comply with the
requirements of this section shall conduct a compliance demonstration
as specified in Sec. 63.1333(e).
    (b) The provisions of this section do not apply to each TPPU
producing PET using a process other than a continuous

[[Page 11688]]

terephthalic acid (TPA) high viscosity multiple end finisher process
that is part of an affected source if all of the equipment leak
components subject to this Sec. 63.1331 in the TPPU are either in
vacuum service or in heavy liquid service.
    (1) Owners and operators of a TPPU exempted under paragraph (b) of
this section shall comply with paragraph (b)(1)(i) or (b)(1)(ii) of
this section.
    (i) Retain information, data, and analyses used to demonstrate that
all of the components in the exempted TPPU are either in vacuum service
or in heavy liquid service. For components in vacuum service, examples
of information that could document this include, but are not limited
to, analyses of process stream composition and process conditions,
engineering calculations, or process knowledge. For components in heavy
liquid service, such documentation shall include an analysis or
demonstration that the process fluids do not meet the criteria of ``in
light liquid service'' or ``in gas or vapor service.''
    (ii) When requested by the Administrator, demonstrate that all of
the components in the TPPU are either in vacuum service or in heavy
liquid service.
    (2) If changes occur at a TPPU exempted under paragraph (b) of this
section such that all of the components in the TPPU are no longer
either in vacuum service or in heavy liquid service (e.g., by either
process changes or the addition of new components), the owner or
operator of the affected source shall comply with the provisions of
this section for all of the components at the TPPU. The owner or
operator shall submit a report within 180 days after the process change
is made or the information regarding the process change is known to the
owner or operator. This report may be included in the next Periodic
Report, as specified in paragraph (a)(5) of this section. A description
of the process change shall be submitted with this report.
* * * * *
    51. Section 63.1333 is amended by revising the section title and
paragraphs (a) introductory text and (a)(1), (a)(2), (a)(4), and (b)
introductory text; and adding paragraphs (a)(5) and (e), to read as
follows:

Sec. 63.1333  Additional requirements for performance testing.

    (a) Performance testing shall be conducted in accordance with
Sec. 63.7 (a)(1), (a)(3), (d), (e)(1), (e)(2), (e)(4), (g), and (h),
with the exceptions specified in paragraphs (a)(1) through (a)(5) of
this section and the additions specified in paragraphs (b) through (d)
of this section. Sections 63.1314 through 63.1330 also contain specific
testing requirements.
    (1) Performance tests shall be conducted according to the
provisions of Sec. 63.7 (e)(1) and (e)(2), except that performance
tests shall be conducted at maximum representative operating conditions
achievable during one of the time periods described in paragraph
(a)(1)(i) of this section, without causing any of the situations
described in paragraph (a)(1)(ii) of this section to occur.
    (i) The 6-month period that ends 2 months before the Notification
of Compliance Status is due, according to Sec. 63.1335(e)(5); or the 6-
month period that begins 3 months before the performance test and ends
3 months after the performance test.
    (ii) Causing damage to equipment; necessitating that the owner or
operator make product that does not meet an existing specification for
sale to a customer; or necessitating that the owner or operator make
product in excess of demand.
    (2) The requirements in Sec. 63.1335(e)(5) should apply instead of
the references in Sec. 63.7(g) to the Notification of Compliance Status
requirements in Sec. 63.9(h).
* * * * *
    (4) The owner or operator shall notify the Administrator of the
intention to conduct a performance test at least 30 days before the
performance test is scheduled to allow the Administrator the
opportunity to have an observer present during the test. If after 30
days notice for an initially scheduled performance test, there is a
delay (due to operational problems, etc.) in conducting the scheduled
performance test, the owner or operator of an affected facility shall
notify the Administrator as soon as possible of any delay in the
original test date, either by providing at least 7 days prior notice of
the rescheduled date of the performance test, or by arranging a
rescheduled date with the Administrator by mutual agreement.
    (5) Performance tests shall be performed no later than 150 days
after the compliance dates specified in this subpart (i.e., in time for
the results to be included in the Notification of Compliance Status),
rather than according to the time periods in Sec. 63.7(a)(2) of subpart
A of this part.
    (b) Each owner or operator of an existing affected source producing
MBS complying with Sec. 63.1315(b)(2) shall determine compliance with
the mass emission per mass product standard by using Equation 49 of
this subpart.
[GRAPHIC] [TIFF OMITTED] TP09MR99.045

Where:

ER<INF>MBS</INF>=Emission rate of organic HAP or TOC from continuous
process vents, kg/Mg product.
E<INF>i</INF>=Emission rate of organic HAP or TOC from continuous
process vent i as calculated using the procedures specified in
Sec. 63.116(c)(4), kg/month.
PP<INF>M</INF>=Amount of polymer produced in one month as determined by
the procedures specified in Sec. 63.1318(b)(1)(ii), Mg/month.
n=Number of continuous process vents.

When determining E<INF>i</INF>, when the provisions of
Sec. 63.116(c)(4) specify that Method 18, 40 CFR part 60, appendix A,
shall be used, Method 18 or Method 25A, 40 CFR part 60, appendix A, may
be used for the purposes of this subpart. The use of Method 25A, 40 CFR
part 60, appendix A, shall conform with the requirements in paragraphs
(b)(1) and (b)(2) of this section.
    (e) Notwithstanding any other provision of this subpart, if an
owner or operator of an affected source uses a flare to comply with any
of the requirements of this subpart, the owner or operator shall comply
with paragraphs (e)(1) through (e)(3) of this section. The owner or
operator is not required to conduct a performance test to determine
percent emission reduction or outlet organic HAP or TOC concentration.
If a compliance demonstration has been conducted previously for a
flare, using the techniques specified in paragraphs (e)(1)

[[Page 11689]]

through (e)(3) of this section, that compliance demonstration may be
used to satisfy the requirements of this paragraph if either no
deliberate process changes have been made since the compliance
demonstration, or the results of the compliance demonstration reliably
demonstrate compliance despite process changes.
    (1) Conduct a visible emission test using the techniques specified
in Sec. 63.11(b)(4);
    (2) Determine the net heating value of the gas being combusted,
using the techniques specified in Sec. 63.11(b)(6); and
    (3) Determine the exit velocity using the techniques specified in
either Sec. 63.11(b)(7)(i) (and Sec. 63.11(b)(7)(iii), where
applicable) or Sec. 63.11(b)(8), as appropriate.
    52. Section 63.1334 is amended by:
    a. Revising paragraphs (a), (b) introductory text, (b)(3)
introductory text, (b)(3)(i)(A) through (b)(3)(i)(D), (b)(3)(ii), (c),
(d), (f)(1) introductory text, (f)(1)(ii), (f)(1)(iii), (f)(2)
introductory text, and (f)(2)(ii);
    b. Removing and reserving paragraphs (b)(1) and (e);
    c. Removing paragraph (b)(3)(i)(E); and
    d. Adding paragraphs (f)(1)(v) and (f)(3) through (f)(7), to read
as follows:

Sec. 63.1334   Parameter monitoring levels and excursions.

    (a) Establishment of parameter monitoring levels. The owner or
operator of a control or recovery device that has one or more parameter
monitoring level requirements specified under this subpart shall
establish a maximum or minimum level for each measured parameter. If a
performance test is required by this subpart for a control device, the
owner or operator shall use the procedures in either paragraph (b) or
(c) of this section to establish the parameter monitoring level(s). If
a performance test is not required by this subpart for a control
device, the owner or operator may use the procedures in paragraph (b),
(c) or (d) of this section to establish the parameter monitoring
level(s). When using the procedures specified in paragraph (c) or (d)
of this section, the owner or operator shall submit the information
specified in Sec. 63.1335(e)(3)(vii) for review and approval as part of
the Precompliance Report.
    (1) The owner or operator shall operate control and recovery
devices such that the daily average of monitored parameters remains
above the minimum established level or below the maximum established
level, except as otherwise stated in this subpart.
    (2) As specified in Sec. 63.1335(e)(5), all established levels,
along with their supporting documentation and the definition of an
operating day, shall be submitted as part of the Notification of
Compliance Status.
    (3) Nothing in this section shall be construed to allow a
monitoring parameter excursion caused by an activity that violates
other applicable provisions of subpart A, F, G, or H of this part.
    (b) Establishment of parameter monitoring levels based exclusively
on performance tests. In cases where a performance test is required by
this subpart, or the owner or operator of the affected source elects to
do a performance test in accordance with the provisions of this
subpart, and an owner or operator elects to establish a parameter
monitoring level for a control, recovery, or recapture device based
exclusively on parameter values measured during the performance test,
the owner or operator of the affected source shall comply with the
procedures in paragraphs (b)(1) through (b)(4) of this section, as
applicable.
    (1) [Reserved.]
* * * * *
    (3) Batch process vents. The monitoring level(s) shall be
established using the procedures specified in either paragraph
(b)(3)(i) or (b)(3)(ii) of this section. The procedures specified in
this paragraph (b)(3) may only be used if the batch emission episodes,
or portions thereof, selected to be controlled were tested, and
monitoring data were collected, during the entire period in which
emissions were vented to the control device, as specified in
Sec. 63.1325(c)(1)(i). If the owner or operator chose to test only a
portion of the batch emission episode, or portion thereof, selected to
be controlled, the procedures in paragraph (c) of this section shall be
used.
    (i) * * *
    (A) The average monitored parameter value shall be calculated for
each batch emission episode, or portion thereof, in the batch cycle
selected to be controlled. The average shall be based on all values
measured during the required performance test.
    (B) If the level to be established is a maximum operating
parameter, the level shall be defined as the minimum of the average
parameter values of the batch emission episodes, or portions thereof,
in the batch cycle selected to be controlled (i.e., identify the
emission episode, or portion thereof, which requires the lowest
parameter value in order to assure compliance. The average parameter
value that is necessary to assure compliance for that emission episode,
or portion thereof, shall be the level for all emission episodes, or
portions thereof, in the batch cycle, that are selected to be
controlled).
    (C) If the level to be established is a minimum operating
parameter, the level shall be defined as the maximum of the average
parameter values of the batch emission episodes, or portions thereof,
in the batch cycle selected to be controlled (i.e., identify the
emission episode, or portion thereof, which requires the highest
parameter value in order to assure compliance. The average parameter
value that is necessary to assure compliance for that emission episode,
or portion thereof, shall be the level for all emission episodes, or
portions thereof, in the batch cycle, that are selected to be
controlled).
    (D) Alternatively, an average monitored parameter value shall be
calculated for the entire batch cycle based on all values measured
during each batch emission episode, or portion thereof, selected to be
controlled.
    (ii) Instead of establishing a single level for the batch cycle, as
described in paragraph (b)(3)(i) of this section, an owner or operator
may establish separate levels for each batch emission episode, or
portion thereof, selected to be controlled. Each level shall be
determined as specified in paragraph (b)(3)(i)(A) of this section.
* * * * *
    (c) Establishment of parameter monitoring levels based on
performance tests, supplemented by engineering assessments and/or
manufacturer's recommendations. In cases where a performance test is
required by this subpart, or the owner or operator elects to do a
performance test in accordance with the provisions of this subpart, and
an owner or operator elects to establish a parameter monitoring level
for a control, recovery, or recapture device under this paragraph (c),
the owner or operator shall supplement the parameter values measured
during the performance test with engineering assessments and/or
manufacturer's recommendations. Performance testing is not required to
be conducted over the entire range of expected parameter values.
    (d) Establishment of parameter monitoring based on engineering
assessments and/or manufacturer's recommendations. In cases where a
performance test is not required by this subpart and an owner or
operator elects to establish a parameter monitoring level for a
control, recovery, or

[[Page 11690]]

recapture device under this paragraph (d), the determination of the
parameter monitoring level shall be based exclusively on engineering
assessments and/or manufacturer's recommendations.
    (e) [Reserved.]
    (f) Parameter monitoring excursion definitions. (1) With respect to
storage vessels (where the applicable monitoring plan specifies
continuous monitoring), continuous process vents, aggregate batch vent
streams, and process wastewater streams, an excursion means any of the
three cases listed in paragraphs (f)(1)(i) through (f)(1)(iii) of this
section. For a control or recovery device where multiple parameters are
monitored, if one or more of the parameters meets the excursion
criteria in paragraphs (f)(1)(i) through (f)(1)(iii) of this section,
this is considered a single excursion for the control or recovery
device. For each excursion, the owner or operator shall be deemed out
of compliance with the provisions of this subpart, except as provided
in paragraph (g) of this section.
* * * * *
    (ii) When the period of control or recovery device operation, with
the exception noted in paragraph (f)(1)(v) of this section, is 4 hours
or greater in an operating day, and monitoring data are insufficient,
as defined in paragraph (f)(1)(iv) of this section, to constitute a
valid hour of data for at least 75 percent of the operating hours.
    (iii) When the period of control or recovery device operation, with
the exception noted in paragraph (f)(1)(v) of this section, is less
than 4 hours in an operating day and more than two of the hours during
the period of operation do not constitute a valid hour of data due to
insufficient monitoring data, as defined in paragraph (f)(1)(iv) of
this section.
* * * * *
    (v) The periods listed in paragraphs (f)(1)(v)(A) through
(f)(1)(v)(E) of this section are not considered to be part of the
period of control or recovery device operation, for the purposes of
paragraphs (f)(1)(ii) and (f)(1)(iii) of this section.
    (A) Monitoring system breakdowns, repairs, calibration checks, and
zero (low-level) and high-level adjustments;
    (B) Start-ups;
    (C) Shutdowns;
    (D) Malfunctions; or
    (E) Periods of non-operation of the affected source (or portion
thereof), resulting in cessation of the emissions to which the
monitoring applies.
    (2) With respect to batch process vents, an excursion means one of
the two cases listed in paragraphs (f)(2)(i) and (f)(2)(ii) of this
section. For a control device where multiple parameters are monitored,
if one or more of the parameters meets the excursion criteria in either
paragraph (f)(2)(i) or (f)(2)(ii) of this section, this is considered a
single excursion for the control device. For each excursion, the owner
or operator shall be deemed out of compliance with the provisions of
this subpart, except as provided in paragraph (g) of this section.
* * * * *
    (ii) When monitoring data are insufficient for an operating day.
Monitoring data shall be considered insufficient when measured values
are not available for at least 75 percent of the 15-minute periods when
batch emission episodes selected to be controlled are being vented to
the control device during the operating day, using the procedures
specified in paragraphs (f)(2)(ii)(A) through (f)(2)(ii)(D) of this
section.
    (A) Determine the total amount of time during the operating day
when batch emission episodes selected to be controlled are being vented
to the control device.
    (B) Subtract the time during the periods listed in paragraphs
(f)(2)(ii)(B)(1) through (f)(2)(ii)(B)(4) of this section from the
total amount of time determined in paragraph (f)(2)(ii)(A) of this
section, to obtain the operating time used to determine if monitoring
data are insufficient.
    (1) Monitoring system breakdowns, repairs, calibration checks, and
zero (low-level) and high-level adjustments;
    (2) Start-ups;
    (3) Shutdowns; or
    (4) Malfunctions.
    (C) Determine the total number of 15-minute periods in the
operating time used to determine if monitoring data are insufficient,
as was determined in accordance with paragraph (f)(2)(ii)(B) of this
section.
    (D) If measured values are not available for at least 75 percent of
the total number of 15-minute periods determined in paragraph
(f)(2)(ii)(C) of this section, the monitoring data are insufficient for
the operating day.
    (3) For storage vessels where the applicable monitoring plan does
not specify continuous monitoring, an excursion is defined in paragraph
(f)(3)(i) or (ii) of this section, as applicable. For a control or
recovery device where multiple parameters are monitored, if one or more
of the parameters meets the excursion criteria, this is considered a
single excursion for the control or recovery device. For each
excursion, the owner or operator shall be deemed out of compliance with
the provisions of this subpart, except as provided in paragraph (g) of
this section.
    (i) If the monitoring plan specifies monitoring a parameter and
recording its value at specific intervals (such as every 15 minutes or
every hour), either of the cases listed in paragraph (f)(3)(i)(A) or
(f)(3)(i)(B) of this section is considered a single excursion for the
control device. For each excursion, the owner or operator shall be
deemed out of compliance with the provisions of this subpart, except as
provided in paragraph (g) of this section.
    (A) When the average value of one or more parameters, averaged over
the duration of the filling period for the storage vessel, is above the
maximum level or below the minimum level established for the given
parameters.
    (B) When monitoring data are insufficient. Monitoring data shall be
considered insufficient when measured values are not available for at
least 75 percent of the specific intervals at which parameters are to
be monitored and recorded, according to the storage vessel's monitoring
plan, during the filling period for the storage vessel.
    (ii) If the monitoring plan does not specify monitoring a parameter
and recording its value at specific intervals (for example, if the
relevant operating requirement is to exchange a disposable carbon
canister before expiration of its rated service life), the monitoring
plan shall define an excursion in terms of the relevant operating
requirement.
    (4) With respect to continuous process vents complying with the
mass emissions per mass product requirements specified in
Sec. 63.1316(b)(1)(i)(A), (b)(1)(ii), (b)(2)(i), (b)(2)(ii), or
(c)(1)(i), an excursion has occurred when the mass emission rate
calculated as specified in Sec. 63.1318(c) exceeds the appropriate mass
emissions per mass product requirement. For each excursion, the owner
or operator shall be deemed out of compliance with the provisions of
this subpart, except as provided in paragraph (g) of this section.
    (5) With respect to continuous process vents complying with the
temperature limits for final condensers specified in
Sec. 63.1316(b)(1)(i)(B) or (c)(1)(ii), an excursion has occurred when
the daily average exit temperature exceeds the appropriate condenser
temperature limit. For each excursion, the owner or operator shall be
deemed out of compliance with the provisions of this subpart, except as
provided in paragraph (g) of this section. The periods listed in
paragraphs (f)(5)(i)

[[Page 11691]]

through (f)(5)(v) of this section are not considered to be part of the
period of operation for the condenser for purposes of determining the
daily average exit temperature.
    (i) Monitoring system breakdowns, repairs, calibration checks, and
zero (low-level) and high-level adjustments;
    (ii) Start-ups;
    (iii) Shutdowns;
    (iv) Malfunctions; or
    (v) Periods of non-operation of the affected source (or portion
thereof), resulting in cessation of the emissions to which the
monitoring applies.
    (6) With respect to new affected sources producing SAN using a
batch process, an excursion has occurred when the percent reduction
calculated using the procedures specified in Sec. 63.1333(c) is less
than 84 percent. For each excursion, the owner or operator shall be
deemed out of compliance with the provisions of this subpart, except as
provided in paragraph (g) of this section. The periods listed in
paragraphs (f)(6)(i) through (f)(6)(v) of this section are not
considered to be part of the period of control or recovery device
operation for purposes of determining the percent reduction.
    (i) Monitoring system breakdowns, repairs, calibration checks, and
zero (low-level) and high-level adjustments;
    (ii) Start-ups;
    (iii) Shutdowns;
    (iv) Malfunctions; or
    (v) Periods of non-operation of the affected source (or portion
thereof), resulting in cessation of the emissions to which the
monitoring applies.
    (7) With respect to continuous process vents complying with the
mass emissions per mass product requirement specified in
Sec. 63.1315(b)(2), an excursion has occurred when the mass emission
rate calculated as specified in Sec. 63.1333(b) exceeds the mass
emissions per mass product requirement specified in Sec. 63.1315(b)(2).
For each excursion, the owner or operator shall be deemed out of
compliance with the provisions of this subpart, except as provided in
paragraph (g) of this section.
* * * * *
    53. Section 63.1335 is amended by:
    a. Revising paragraphs (a), (b)(1), (b)(2), (d) introductory text,
(d)(2), (d)(3), (d)(6), (d)(7), (d)(8), (d)(9), (e) introductory text,
(e)(1), (e)(2), (e)(3), (e)(4) introductory text, (e)(4)(i), (e)(4)(ii)
introductory text, (e)(4)(ii)(B), (e)(4)(ii)(D), (e)(4)(ii)(F)(2),
(e)(4)(ii)(F)(4), (e)(4)(ii)(F)(5), (e)(4)(ii)(H)(2), (e)(4)(ii)(J)(2),
(e)(4)(ii)(L)(2), (e)(4)(ii)(N), (e)(4)(iii), (e)(4)(iv), (e)(4)(iv)(A)
introductory text, (e)(4)(iv)(B) introductory text, (e)(4)(iv)(C),
(e)(5) introductory text, (e)(5)(i) introductory text, (e)(5)(i)(A),
(e)(5)(ii) introductory text, (e)(5)(iv), (e)(5)(vi) through
(e)(5)(viii), (e)(6) introductory text, (e)(6)(i), (e)(6)(ii),
(e)(6)(iii)(B), (e)(6)(iii)(D) introductory text, (e)(6)(iii)(D)(2),
(e)(6)(iii)(D)(3), (e)(6)(iv), (e)(6)(v)(B), (e)(6)(vi) through
(e)(6)(xi), (e)(7) introductory text, (e)(7)(ii), (e)(8), (f)
introductory text, (f)(3) introductory text, (g) introductory text,
(g)(3) introductory text, (g)(3)(i)(A), (g)(4), (h) introductory text,
(h)(1) introductory text, (h)(1)(ii)(B), (h)(1)(iv), (h)(1)(vi)
introductory text, (h)(1)(vi)(B), (h)(1)(vi)(C), (h)(2)(i), and
(h)(2)(iii);
    b. Removing paragraph (d)(10);
    c. Removing and reserving paragraphs (c), (d)(4), (d)(5), and
(e)(6)(iii)(C); and
    d. Adding paragraphs (e)(4)(iv)(D), (e)(5)(ix) through (e)(5)(xi),
(e)(6)(iii)(D)(4), (e)(6)(xii), (e)(7)(iii), (e)(7)(iv), and
(h)(1)(vi)(D), to read as follows:

Sec. 63.1335  General recordkeeping and reporting provisions.

    (a) Data retention. Unless otherwise specified in this subpart, the
owner or operator of an affected source shall keep copies of all
applicable records and reports required by this subpart for at least 5
years, as specified in paragraph (a)(1) of this section, with the
exception listed in paragraph (a)(2) of this section.
    (1) All applicable records shall be maintained in such a manner
that they can be readily accessed. The most recent 6 months of records
shall be retained on site or shall be accessible from a central
location by computer or other means that provides access within 2 hours
after a request. The remaining 4 and one-half years of records may be
retained offsite. Records may be maintained in hard copy or computer-
readable form including, but not limited to, on paper, microfilm,
computer, floppy disk, magnetic tape, or microfiche.
    (2) If an owner or operator submits copies of reports to the
appropriate EPA Regional Office, the owner or operator is not required
to maintain copies of reports. If the EPA Regional Office has waived
the requirement of Sec. 63.10(a)(4)(ii) for submittal of copies of
reports, the owner or operator is not required to maintain copies of
those reports.
    (b) * * *
    (1) Start-up, shutdown, and malfunction plan. The owner or operator
of an affected source shall develop and implement a written start-up,
shutdown, and malfunction plan as specified in Sec. 63.6(e)(3). This
plan shall describe, in detail, procedures for operating and
maintaining the affected source during periods of start-up, shutdown,
and malfunction and a program for corrective action for malfunctioning
process and air pollution control equipment used to comply with this
subpart. A provision for ceasing to collect, during a start-up,
shutdown, or malfunction, monitoring data that would otherwise be
required by the provisions of this subpart may be included in the
start-up, shutdown, and malfunction plan only if the owner or operator
has demonstrated to the Administrator, through the Precompliance Report
or a supplement to the Precompliance Report, that the monitoring system
would be damaged or destroyed if it were not shut down during the
start-up, shutdown, or malfunction. The affected source shall keep the
start-up, shutdown, and malfunction plan on-site. Records associated
with the plan shall be kept as specified in paragraphs (b)(1)(i)(A)
through (b)(1)(i)(C) of this section. Reports related to the plan shall
be submitted as specified in paragraph (b)(1)(ii) of this section.
    (i) Records of start-up, shutdown, and malfunction. The owner or
operator shall keep the records specified in paragraphs (b)(1)(i)(A)
through (b)(1)(i)(C) of this section.
    (A) Records of the occurrence and duration of each start-up,
shutdown, and malfunction of operation of process equipment or control
devices or recovery devices or continuous monitoring systems used to
comply with this subpart during which excess emissions (as defined in
Sec. 63.1310(j)(4)) occur.
    (B) For each start-up, shutdown, or malfunction during which excess
emissions (as defined in Sec. 63.1310(j)(4)) occur, records reflecting
whether the procedures specified in the affected source's start-up,
shutdown, and malfunction plan were followed, and documentation of
actions taken that are not consistent with the plan. For example, if a
start-up, shutdown, and malfunction plan includes procedures for
routing a control device to a backup control device, records shall be
kept of whether the plan was followed. These records may take the form
of a ``checklist,'' or other form of recordkeeping that confirms
conformance with the start-up shutdown, and malfunction plan for the
event.
    (C) Records specified in paragraphs (b)(1)(i)(A) through
(b)(1)(i)(B) of this section are not required if they pertain solely to
Group 2 emission points that are not included in an emissions average.
    (ii) Reports of start-up, shutdown, and malfunction. For the
purposes of this

[[Page 11692]]

subpart, the semiannual start-up, shutdown, and malfunction reports
shall be submitted on the same schedule as the Periodic Reports
required under paragraph (e)(6) of this section instead of being
submitted on the schedule specified in Sec. 63.10(d)(5)(i). Said
reports shall include the information specified in paragraphs
(b)(1)(i)(A) through (b)(1)(i)(B) of this section and shall contain the
name, title, and signature of the owner or operator or other
responsible official who is certifying its accuracy.
    (2) Application for approval of construction or reconstruction. For
new affected sources, each owner or operator shall comply with the
provisions in Sec. 63.5 regarding construction and reconstruction,
excluding the provisions specified in Sec. 63.5(d)(1)(ii)(H),
(d)(1)(iii), (d)(2), and (d)(3)(ii).
    (c) [Reserved.]
    (d) Recordkeeping and documentation. Owners or operators required
to keep continuous records shall keep records as specified in
paragraphs (d)(1) through (d)(7) of this section, unless an alternative
recordkeeping system has been requested and approved as specified in
paragraph (g) of this section, and except as provided in paragraph (h)
of this section. If a monitoring plan for storage vessels pursuant to
Sec. 63.1314(a)(9) requires continuous records, the monitoring plan
shall specify which provisions, if any, of paragraphs (d)(1) through
(d)(7) of this section apply. As described in Sec. 63.1314(a)(9),
certain storage vessels are not required to keep continuous records as
specified in this paragraph. Owners and operators of such storage
vessels shall keep records as specified in the monitoring plan required
by Sec. 63.1314(a)(9). Paragraphs (d)(8) and (d)(9) of this section
specify documentation requirements.
* * * * *
    (2) The owner or operator shall record either each measured data
value or block average values for 1 hour or shorter periods calculated
from all measured data values during each period. If values are
measured more frequently than once per minute, a single value for each
minute may be used to calculate the hourly (or shorter period) block
average instead of all measured values. Owners or operators of batch
process vents shall record each measured data value.
    (3) Daily average (or batch cycle daily average) values of each
continuously monitored parameter shall be calculated for each operating
day as specified in paragraphs (d)(3)(i) through (d)(3)(ii) of this
section, except as specified in paragraphs (d)(6) and (d)(7) of this
section.
    (i) The daily average value or batch cycle daily average shall be
calculated as the average of all parameter values recorded during the
operating day, except as specified in paragraph (d)(7) of this section.
For batch process vents, as specified in Sec. 63.1326(e)(2)(i), only
parameter values measured during those batch emission episodes, or
portions thereof, in the batch cycle that the owner or operator has
chosen to control shall be used to calculate the average. The
calculated average shall cover a 24-hour period if operation is
continuous, or the number of hours of operation per operating day if
operation is not continuous.
    (ii) The operating day shall be the period the owner or operator
specifies in the operating permit or the Notification of Compliance
Status for purposes of determining daily average values or batch cycle
daily average values of monitored parameters.
    (4) [Reserved.]
    (5) [Reserved.]
    (6) Records required when all recorded values are within the
established limits. If all recorded values for a monitored parameter
during an operating day are above the minimum level or below the
maximum level established in the Notification of Compliance Status or
operating permit, the owner or operator may record that all values were
above the minimum level or below the maximum level rather than
calculating and recording a daily average (or batch cycle daily
average) for that operating day.
    (7) Monitoring data recorded during periods identified in
paragraphs (d)(7)(i) through (d)(7)(v) of this section shall not be
included in any average computed under this subpart. Records shall be
kept of the times and durations of all such periods and any other
periods during process or control device or recovery device operation
when monitors are not operating.
    (i) Monitoring system breakdowns, repairs, calibration checks, and
zero (low-level) and high-level adjustments;
    (ii) Start-ups;
    (iii) Shutdowns;
    (iv) Malfunctions;
    (v) Periods of non-operation of the affected source (or portion
thereof), resulting in cessation of the emissions to which the
monitoring applies.
    (8) For continuous monitoring systems used to comply with this
subpart, records documenting the completion of calibration checks, and
records documenting the maintenance of continuous monitoring systems
that are specified in the manufacturer's instructions or that are
specified in other written procedures that provide adequate assurance
that the equipment would reasonably be expected to monitor accurately.
    (9) The owner or operator of an affected source granted a waiver
under Sec. 63.10(f) shall maintain the information, if any, specified
by the Administrator as a condition of the waiver of recordkeeping or
reporting requirements.
    (e) Reporting and notification. In addition to the reports and
notifications required by subpart A of this part as specified in Table
1 of this subpart, the owner or operator of an affected source shall
prepare and submit the reports listed in paragraphs (e)(3) through
(e)(8) of this section, as applicable. All reports required by this
subpart, and the schedule for their submittal, are listed in Table 9 of
this subpart.
    (1) Owners and operators shall not be in violation of the reporting
requirements of this subpart for failing to submit information required
to be included in a specified report if the owner or operator meets the
requirements in paragraphs (e)(1)(i) through (e)(1)(iii) of this
section. Examples of circumstances where this paragraph may apply
include information related to newly-added equipment or emission
points, changes in the process, changes in equipment required or
utilized for compliance with the requirements of this subpart, or
changes in methods or equipment for monitoring, recordkeeping, or
reporting.
    (i) The information was not known in time for inclusion in the
report specified by this subpart;
    (ii) The owner or operator has been diligent in obtaining the
information; and
    (iii) The owner or operator submits a report according to the
provisions of paragraphs (e)(1)(iii)(A) through (e)(1)(iii)(C) of this
section.
    (A) If this subpart expressly provides for supplements to the
report in which the information is required, the owner or operator
shall submit the information as a supplement to that report. The
information shall be submitted no later than 60 days after it is
obtained, unless otherwise specified in this subpart.
    (B) If this subpart does not expressly provide for supplements, but
the owner or operator must submit a request for revision of an
operating permit pursuant to part 70 or part 71, due to circumstances
to which the information pertains, the owner or operator shall submit
the information with the request for revision to the operating permit.
    (C) In any case not addressed by paragraph (e)(1)(iii)(A) or
(e)(1)(iii)(B) of

[[Page 11693]]

this paragraph, the owner or operator shall submit the information with
the first Periodic Report, as required by this subpart, which has a
submission deadline at least 60 days after the information is obtained.
    (2) All reports required under this subpart shall be sent to the
Administrator at the appropriate address listed in Sec. 63.13. If
acceptable to both the Administrator and the owner or operator of an
affected source, reports may be submitted on electronic media.
    (3) Precompliance Report. Owners or operators of affected sources
requesting an extension for compliance; requesting approval to use
alternative monitoring parameters, alternative continuous monitoring
and recordkeeping, or alternative controls; requesting approval to use
engineering assessment to estimate emissions from a batch emissions
episode, as described in Sec. 63.1323(b)(6)(i)(C); wishing to establish
parameter monitoring levels according to the procedures contained in
Sec. 63.1334(c) or (d); or requesting approval to incorporate a
provision for ceasing to collect monitoring data, during a start-up,
shutdown, or malfunction, into the start-up, shutdown, and malfunction
plan, when that monitoring equipment would be damaged if it did not
cease to collect monitoring data, as permitted under
Sec. 63.1310(j)(3), shall submit a Precompliance Report according to
the schedule described in paragraph (e)(3)(i) of this section. The
Precompliance Report shall contain the information specified in
paragraphs (e)(3)(ii) through (e)(3)(viii) of this section, as
appropriate.
    (i) Submittal dates. The Precompliance Report shall be submitted to
the Administrator no later than 12 months prior to the compliance date.
Unless the Administrator objects to a request submitted in the
Precompliance Report within 45 days after its receipt, the request
shall be deemed approved. For new affected sources, the Precompliance
Report shall be submitted to the Administrator with the application for
approval of construction or reconstruction required in paragraph (b)(2)
of this section. Supplements to the Precompliance Report may be
submitted as specified in paragraph (e)(3)(ix) of this section.
    (ii) A request for an extension for compliance, as specified in
Sec. 63.1311(e), may be submitted in the Precompliance Report. The
request for a compliance extension shall include the data outlined in
Sec. 63.6(i)(6)(i)(A), (B), and (D), as required in Sec. 63.1311(e)(1).
    (iii) The alternative monitoring parameter information required in
paragraph (f) of this section shall be submitted in the Precompliance
Report if, for any emission point, the owner or operator of an affected
source seeks to comply through the use of a control technique other
than those for which monitoring parameters are specified in this
subpart or in subpart G of this part or seeks to comply by monitoring a
different parameter than those specified in this subpart or in subpart
G of this part.
    (iv) If the affected source seeks to comply using alternative
continuous monitoring and recordkeeping as specified in paragraph (g)
of this section, the owner or operator shall submit a request for
approval in the Precompliance Report.
    (v) The owner or operator shall report the intent to use
alternative controls to comply with the provisions of this subpart in
the Precompliance Report. The Administrator may deem alternative
controls to be equivalent to the controls required by the standard,
under the procedures outlined in Sec. 63.6(g).
    (vi) If a request for approval to use engineering assessment to
estimate emissions from a batch emissions episode, as described in
Sec. 63.1323(b)(6)(i)(C) is being made, the information required by
Sec. 63.1323(b)(6)(ii)(B) shall be submitted in the Precompliance
Report.
    (vii) If an owner or operator establishes parameter monitoring
levels according to the procedures contained in Sec. 63.1334(c) or (d),
the following information shall be submitted in the Precompliance
Report:
    (A) Identification of which procedures (i.e., Sec. 63.1334(c) or
(d)) are to be used; and
    (B) A description of how the parameter monitoring level is to be
established. If the procedures in Sec. 63.1334(c) are to be used, a
description of how performance test data will be used shall be
included.
    (viii) If the owner or operator is requesting approval to
incorporate a provision for ceasing to collect monitoring data, during
a start-up, shutdown, or malfunction, into the start-up, shutdown, and
malfunction plan, when that monitoring equipment would be damaged if it
did not cease to collect monitoring data, the information specified in
paragraphs (e)(3)(viii)(A) and (B) shall be supplied in the
Precompliance Report or in a supplement to the Precompliance Report.
The Administrator shall evaluate the supporting documentation and shall
approve the request only if, in the Administrator's judgment, the
specific monitoring equipment would be damaged by the contemporaneous
start-up, shutdown, or malfunction.
    (A) Documentation supporting a claim that the monitoring equipment
would be damaged by the contemporaneous start-up, shutdown, or
malfunction; and
    (B) A request to incorporate such a provision for ceasing to
collect monitoring data during a start-up, shutdown, or malfunction,
into the start-up, shutdown, and malfunction plan.
    (ix) Supplements to the Precompliance Report may be submitted as
specified in paragraphs (e)(3)(ix)(A) or (e)(3)(ix)(B) of this section.
Unless the Administrator objects to a request submitted in a supplement
to the Precompliance Report within 45 days after its receipt, the
request shall be deemed approved.
    (A) Supplements to the Precompliance Report may be submitted to
clarify or modify information previously submitted.
    (B) Supplements to the Precompliance Report may be submitted to
request approval to use alternative monitoring parameters, as specified
in paragraph (e)(3)(iii) of this section; to use alternative continuous
monitoring and recordkeeping, as specified in paragraph (e)(3)(iv) of
this section; to use alternative controls, as specified in paragraph
(e)(3)(v) of this section; to use engineering assessment to estimate
emissions from a batch emissions episode, as specified in paragraph
(e)(3)(vi) of this section; to establish parameter monitoring levels
according to the procedures contained in Sec. 63.1334(c) or (d), as
specified in paragraph (e)(3)(vii) of this section; or to include a
provision for ceasing to collect monitoring data during a start-up,
shutdown, or malfunction, in the start-up, shutdown, and malfunction
plan, when that monitoring equipment would be damaged if it did not
cease to collect monitoring data, as specified in paragraph
(e)(3)(viii) of this section.
    (4) Emissions Averaging Plan. For all existing affected sources
using emissions averaging, an Emissions Averaging Plan shall be
submitted for approval according to the schedule and procedures
described in paragraph (e)(4)(i) of this section. The Emissions
Averaging Plan shall contain the information specified in paragraph
(e)(4)(ii) of this section, unless the information required in
paragraph (e)(4)(ii) of this section is submitted with an operating
permit application. An owner or operator of an affected source who
submits an operating permit application instead of an Emissions
Averaging Plan shall submit the information specified in paragraph
(e)(8)

[[Page 11694]]

of this section. In addition, a supplement to the Emissions Averaging
Plan, as required under paragraph (e)(4)(iii) of this section, is to be
submitted whenever additional alternative controls or operating
scenarios may be used to comply with this subpart. Updates to the
Emissions Averaging Plan shall be submitted in accordance with
paragraph (e)(4)(iv) of this section.
    (i) Submittal and approval. The Emissions Averaging Plan shall be
submitted no later than 18 months prior to the compliance date, and it
is subject to Administrator approval. The Administrator shall determine
within 120 days whether the Emissions Averaging Plan submitted presents
sufficient information. The Administrator shall either approve the
Emissions Averaging Plan, request changes, or request that the owner or
operator submit additional information. Once the Administrator receives
sufficient information, the Administrator shall approve, disapprove, or
request changes to the plan within 120 days.
    (ii) Information required. The Emissions Averaging Plan shall
contain the information listed in paragraphs (e)(4)(ii)(A) through
(e)(4)(ii)(N) of this section for all emission points included in an
emissions average.
* * * * *
    (B) The required information shall include the projected emission
debits and credits for each emission point and the sum for the emission
points involved in the average calculated according to Sec. 63.1332.
The projected credits shall be greater than or equal to the projected
debits, as required under Sec. 63.1332(e)(3).
* * * * *
    (D) The required information shall include the specific
identification of each emission point affected by a pollution
prevention measure. To be considered a pollution prevention measure,
the criteria in Sec. 63.1332(j)(1) shall be met. If the same pollution
prevention measure reduces or eliminates emissions from multiple
emission points in the average, the owner or operator shall identify
each of these emission points.
* * * * *
    (F) * * *
    (2) The required documentation shall include the estimated values
of all parameters needed for input to the emission debit and credit
calculations in Sec. 63.1332(g) and (h). These parameter values shall
be specified in the affected source's Emissions Averaging Plan (or
operating permit) as enforceable operating conditions. Changes to these
parameters shall be reported as required by paragraph (e)(4)(iv) of
this section.
* * * * *
    (4) The required documentation shall include the anticipated
nominal efficiency if a control technology achieving a greater percent
emission reduction than the efficiency of the reference control
technology is or will be applied to the emission point. The procedures
in Sec. 63.1332(i) shall be followed to apply for a nominal efficiency,
and the report specified in paragraph (e)(7)(ii) of this section shall
be submitted with the Emissions Averaging Plan as specified in
paragraph (e)(7)(ii)(A) of this section.
    (5) The required documentation shall include the monitoring plan
specified in Sec. 63.122(b), to include the information specified in
Sec. 63.120(d)(2)(i) and in either Sec. 63.120(d)(2)(ii) or (d)(2)(iii)
for each storage vessel controlled with a closed-vent system using a
control device other than a flare.
* * * * *
    (H) * * *
    (2) The required documentation shall include the estimated values
of all parameters needed for input to the emission debit and credit
calculations in Sec. 63.1332(g) and (h). These parameter values shall
be specified in the affected source's Emissions Averaging Plan (or
operating permit) as enforceable operating conditions. Changes to these
parameters shall be reported as required by paragraph (e)(4)(iv) of
this section.
* * * * *
    (J) * * *
    (2) The required documentation shall include the estimated values
of all parameters needed for input to the emission debit and credit
calculations in Sec. 63.1332(g) and (h). These parameter values shall
be specified in the affected source's Emissions Averaging Plan (or
operating permit) as enforceable operating conditions. Changes to these
parameters shall be reported as required by paragraph (e)(4)(iv) of
this section.
* * * * *
    (L) * * *
    (2) The required documentation shall include the estimated values
of all parameters needed for input to the wastewater emission credit
and debit calculations in Sec. 63.1332(g) and (h). These parameter
values shall be specified in the affected source's Emissions Averaging
Plan (or operating permit) as enforceable operating conditions. Changes
to these parameters shall be reported as required by paragraph
(e)(4)(iv) of this section.
* * * * *
    (N) The required information shall include documentation of the
data required by Sec. 63.1332(k). The documentation shall demonstrate
that the emissions from the emission points proposed to be included in
the average will not result in greater hazard or, at the option of the
Administrator, greater risk to human health or the environment than if
the emission points were not included in an emissions average.
    (iii) Supplement to Emissions Averaging Plan. The owner or operator
required to prepare an Emissions Averaging Plan under paragraph (e)(4)
of this section shall also prepare a supplement to the Emissions
Averaging Plan for any additional alternative controls or operating
scenarios that may be used to achieve compliance.
    (iv) Updates to Emissions Averaging Plan. The owner or operator of
an affected source required to submit an Emissions Averaging Plan under
paragraph (e)(4) of this section shall also submit written updates of
the Emissions Averaging Plan to the Administrator for approval under
the circumstances described in paragraphs (e)(4)(iv)(A) through
(e)(4)(iv)(C) of this section unless the relevant information has been
included and submitted in an operating permit application or amendment.
    (A) The owner or operator who plans to make a change listed in
either paragraph (e)(4)(iv)(A)(1) or (e)(4)(iv)(A)(2) of this section
shall submit an Emissions Averaging Plan update at least 120 days prior
to making the change.
* * * * *
    (B) The owner or operator who has made a change as defined in
paragraph (e)(4)(iv)(B)(1) or (e)(4)(iv)(B)(2) of this section shall
submit an Emissions Averaging Plan update within 90 days after the
information regarding the change is known to the affected source. The
update may be submitted in the next quarterly periodic report if the
change is made after the date the Notification of Compliance Status is
due.
* * * * *
    (C) The owner or operator who plans to make a change listed in
either paragraph (e)(4)(iv)(A)(1) or (e)(4)(iv)(A)(2) of this section
shall submit an Emissions Averaging Plan update at least 120 days prior
to making the change.
    (D) The Administrator shall approve or request changes to the
Emissions Averaging Plan update within 120 days of receipt of
sufficient information regarding the change for emission points
included in emissions averages.

[[Page 11695]]

    (5) Notification of Compliance Status. For existing and new
affected sources, a Notification of Compliance Status shall be
submitted. For equipment leaks subject to Sec. 63.1331, the owner or
operator shall submit the information required in Sec. 63.182(c) in the
Notification of Compliance Status within 150 days after the first
applicable compliance date for equipment leaks in the affected source,
and an update shall be provided in the first Periodic Report that is
due at least 150 days after each subsequent applicable compliance date
for equipment leaks in the affected source. For all other emission
points, including heat exchange systems, the Notification of Compliance
Status shall contain the information listed in paragraphs (e)(5)(i)
through (e)(5)(xi) of this section, as applicable, and shall be
submitted no later than 150 days after the compliance dates specified
in this subpart.
    (i) The results of any emission point group determinations, process
section applicability determinations, performance tests, inspections,
continuous monitoring system performance evaluations, any other
information used to demonstrate compliance, values of monitored
parameters established during performance tests, and any other
information required to be included in the Notification of Compliance
Status under Secs. 63.1311(l), 63.122, and 63.1314 for storage vessels,
Sec. 63.117 for continuous process vents, Sec. 63.146 for process
wastewater, Secs. 63.1316 through 63.1320 for continuous process vents
subject to Sec. 63.1316, Sec. 63.1327 for batch process vents,
Sec. 63.1329 for process contact cooling towers, and Sec. 63.1332 for
emission points included in an emissions average. In addition, the
owner or operator of an affected source shall comply with paragraph
(e)(5)(i)(A) and (e)(5)(i)(B) of this section.
    (A) For performance tests, group determinations, and process
section applicability determinations that are based on measurements,
the Notification of Compliance Status shall include one complete test
report, as described in paragraph (e)(5)(i)(B) of this section, for
each test method used for a particular kind of emission point. For
additional tests performed for the same kind of emission point using
the same method, the results and any other information, from the test
report, that is requested on a case-by-case basis by the Administrator
shall be submitted, but a complete test report is not required.
    (ii) For each monitored parameter for which a maximum or minimum
level is required to be established under Sec. 63.114(e) for continuous
process vents, Sec. 63.1324 for batch process vents and aggregate batch
vent streams, Sec. 63.143(f) for process wastewater, Sec. 63.1332(m)
for emission points in emissions averages, paragraph (e)(8) of this
section, or paragraph (f) of this section, the Notification of
Compliance Status shall contain the information specified in paragraphs
(e)(5)(ii)(A) through (e)(5)(ii)(D) of this section, unless this
information has been established and provided in the operating permit
application. Further, as described in Sec. 63.1314(a)(9), for those
storage vessels for which the monitoring plan required by
Sec. 63.1314(a)(9) specifies compliance with the provisions of
Sec. 63.1334, the owner or operator shall provide the information
specified in paragraphs (e)(5)(ii)(A) through (e)(5)(ii)(D) of this
section for each monitored parameter, unless this information has been
established and provided in the operating permit application. For those
storage vessels for which the monitoring plan required by
Sec. 63.1314(a)(9) does not require compliance with the provisions of
Sec. 63.1334, the owner or operator shall provide the information
specified in Sec. 63.120(d)(3) as part of the Notification of
Compliance Status, unless this information has been established and
provided in the operating permit application.
* * * * *
    (iv) The determination of applicability for flexible operation
units as specified in Sec. 63.1310(f).
* * * * *
    (vi) The results for each predominant use determination made under
Sec. 63.1310(g), for storage vessels assigned to an affected source
subject to this subpart.
    (vii) The results for each predominant use determination made under
Sec. 63.1310(h), for recovery operations equipment assigned to an
affected source subject to this subpart.
    (viii) For owners or operators of Group 2 batch process vents
establishing a batch mass input limitation as specified in
Sec. 63.1325(g), the affected source's operating year for purposes of
determining compliance with the batch mass input limitation.
    (ix) If any emission point is subject to this subpart and to other
standards as specified in Sec. 63.1311, and if the provisions of
Sec. 63.1311 allow the owner or operator to choose which testing,
monitoring, reporting, and recordkeeping provisions will be followed,
then the Notification of Compliance Status shall indicate which rule's
requirements will be followed for testing, monitoring, reporting, and
recordkeeping.
    (x) An owner or operator who transfers a Group 1 wastewater stream
or residual removed from a Group 1 wastewater stream for treatment
pursuant to Sec. 63.132(g) shall include in the Notification of
Compliance Status the name and location of the transferee and a
description of the Group 1 wastewater stream or residual sent to the
treatment facility.
    (xi) An owner or operator complying with paragraph (h)(1) of this
section shall notify the Administrator of the election to comply with
paragraph (h)(1) of this section as part of the Notification of
Compliance Status or as part of the appropriate Periodic Report as
specified in paragraph (e)(6)(ix) of this section.
    (6) Periodic Reports. For existing and new affected sources, the
owner or operator shall submit Periodic Reports as specified in
paragraphs (e)(6)(i) through (e)(6)(xi) of this section. In addition,
for equipment leaks subject to Sec. 63.1331, the owner or operator
shall submit the information specified in Sec. 63.182(d) under the
conditions listed in Sec. 63.182(d), and for heat exchange systems
subject to Sec. 63.1328, the owner or operator shall submit the
information specified in Sec. 63.104(f)(2) as part of the Periodic
Report required by this paragraph (e)(6). Section 63.1334 shall govern
the use of monitoring data to determine compliance for Group 1
emissions points and for Group 1 and Group 2 emission points included
in emissions averages with the following exception: As discussed in
Sec. 63.1314(a)(9), for storage vessels to which the provisions of
Sec. 63.1334 do not apply, as specified in the monitoring plan required
by Sec. 63.120(d)(2), the owner or operator is required to comply with
the requirements set out in the monitoring plan, and monitoring records
may be used to determine compliance.
    (i) Except as specified in paragraphs (e)(6)(xi) and (e)(6)(xii) of
this section, a report containing the information in paragraph
(e)(6)(ii) of this section or containing the information in paragraphs
(e)(6)(iii) through (e)(6)(x) of this section, as appropriate, shall be
submitted semiannually no later than 60 days after the end of each 6-
month period. The first report shall be submitted no later than 240
days after the date the Notification of Compliance Status is due and
shall cover the 6-month period beginning on the date the Notification
of Compliance Status is due.
    (ii) If none of the compliance exceptions specified in paragraphs
(e)(6)(iii) through (e)(6)(ix) of this section occurred during the 6-
month period, the Periodic Report required by

[[Page 11696]]

paragraph (e)(6)(i) of this section shall be a statement that there
were no compliance exceptions as described in this paragraph for the 6-
month period covered by that report and no activities specified in
paragraphs (e)(6)(iii) through (e)(6)(ix) of this section occurred
during the 6-month period covered by that report.
    (iii) * * *
    (B) The daily average values or batch cycle daily average values of
monitored parameters for both excused excursions, as defined in
Sec. 63.1334(g), and unexcused excursions, as defined in
Sec. 63.1334(f). For excursions caused by lack of monitoring data, the
start-time and duration of periods when monitoring data were not
collected shall be specified.
    (C) [Reserved.]
    (D) The information in paragraphs (e)(6)(iii)(D)(1) through
(e)(6)(iii)(D)(4) of this section, as applicable:
* * * * *
    (2) Notification if a process change is made such that the group
status of any emission point changes from Group 2 to Group 1. The owner
or operator is not required to submit a notification of a process
change if that process change caused the group status of an emission
point to change from Group 1 to Group 2. However, until the owner or
operator notifies the Administrator that the group status of an
emission point has changed from Group 1 to Group 2, the owner or
operator is required to continue to comply with the Group 1
requirements for that emission point. This notification may be
submitted at any time.
    (3) Notification if one or more emission point(s) (other than
equipment leaks) or one or more TPPU is added to an affected source.
The owner or operator shall submit the information contained in
paragraphs (e)(6)(iii)(D)(3)(i) through (e)(6)(iii)(D)(3)(ii) of this
section:
    (i) A description of the addition to the affected source; and
    (ii) Notification of the group status of the additional emission
point or all emission points in the TPPU.
    (4) For process wastewater streams sent for treatment pursuant to
Sec. 63.132(g), reports of changes in the identity of the treatment
facility or transferee.
* * * * *
    (iv) For each batch process vent with a batch mass input
limitation, every second Periodic Report shall include the mass of HAP
or material input to the batch unit operation during the 12-month
period covered by the preceding and current Periodic Reports, and a
statement of whether the batch process vent was in or out of compliance
with the batch mass input limitation.
    (v) * * *
    (B) For additional tests performed for the same kind of emission
point using the same method, results and any other information,
pertaining to the performance test, that is requested on a case-by-case
basis by the Administrator shall be submitted, but a complete test
report is not required.
    (vi) Notification of a change in the primary product of a TPPU, in
accordance with the provisions in Sec. 63.1310(f). This includes a
change in primary product from one thermoplastic product to either
another thermoplastic product or to a non-thermoplastic product.
    (vii) The results for each change made to a predominant use
determination made under Sec. 63.1310(g) for a storage vessel that is
assigned to an affected source subject to this subpart after the
change.
    (viii) The Periodic Report shall include the results for each
change made to a predominant use determination made under
Sec. 63.1310(h) for recovery operations equipment assigned to an
affected source subject to this subpart after the change.
    (ix) An owner or operator complying with paragraph (h)(1) of this
section shall notify the Administrator of the election to comply with
paragraph (h)(1) of this section as part of the Periodic Report or as
part of the Notification of Compliance Status as specified in paragraph
(e)(5)(xi) of this section.
    (x) An owner or operator electing not to retain daily average or
batch cycle daily average values under paragraph (h)(2) of this section
shall notify the Administrator as specified in paragraph (h)(2)(i) of
this section.
    (xi) The owner or operator of an affected source shall submit
quarterly reports for all emission points included in an emissions
average as specified in paragraphs (e)(6)(xi)(A) through (e)(6)(xi)(C)
of this section.
    (A) The quarterly reports shall be submitted no later than 60 days
after the end of each quarter. The first report shall be submitted with
the Notification of Compliance Status no later than 150 days after the
compliance date.
    (B) The quarterly reports shall include the information specified
in paragraphs (e)(6)(xi)(B)(1) through (e)(6)(xi)(B)(7) of this section
for all emission points included in an emissions average.
    (1) The credits and debits calculated each month during the
quarter;
    (2) A demonstration that debits calculated for the quarter are not
more than 1.30 times the credits calculated for the quarter, as
required under Sec. 63.1332(e)(4);
    (3) The values of any inputs to the debit and credit equations in
Sec. 63.1332 (g) and (h) that change from month to month during the
quarter or that have changed since the previous quarter;
    (4) Results of any performance tests conducted during the reporting
period including one complete report for each test method used for a
particular kind of emission point as described in paragraph (e)(6)(v)
of this section;
    (5) Reports of daily average (or batch cycle daily average) values
of monitored parameters for excursions as defined in Sec. 63.1334(f);
    (6) For excursions caused by lack of monitoring data, the duration
of periods when monitoring data were not collected shall be specified;
and
    (7) Any other information the affected source is required to report
under the operating permit or Emissions Averaging Plan for the affected
source.
    (C) Every fourth quarterly report shall include the following:
    (1) A demonstration that annual credits are greater than or equal
to annual debits as required by Sec. 63.1332(e)(3); and
    (2) A certification of compliance with all the emissions averaging
provisions in Sec. 63.1332.
    (xii) The owner or operator of an affected source shall submit
quarterly reports for particular emission points and process sections
not included in an emissions average as specified in paragraphs
(e)(6)(xii)(A) through (e)(6)(xii)(D) of this section.
    (A) The owner or operator of an affected source shall submit
quarterly reports for a period of 1 year for an emission point or
process section that is not included in an emissions average if:
    (1) A control or recovery device for a particular emission point or
process section has more excursions, as defined in Sec. 63.1334(f),
than the number of excused excursions allowed under Sec. 63.1334(g) for
a semiannual reporting period; or
    (2) The Administrator requests that the owner or operator submit
quarterly reports for the emission point or process section.
    (B) The quarterly reports shall include all information specified
in paragraphs (e)(6)(iii) through (e)(6)(ix) of this section applicable
to the emission point or process section for which quarterly reporting
is required under paragraph (e)(6)(xii)(A) of this section. Information
applicable to other emission points within the affected source shall be
submitted in the semiannual reports required under paragraph (e)(6)(i)
of this section.

[[Page 11697]]

    (C) Quarterly reports shall be submitted no later than 60 days
after the end of each quarter.
    (D) After quarterly reports have been submitted for an emission
point for 1 year without more excursions occurring (during that year)
than the number of excused excursions allowed under Sec. 63.1334(g),
the owner or operator may return to semiannual reporting for the
emission point or process section.
    (7) Other reports. Other reports shall be submitted as specified in
paragraphs (e)(7)(i) through (e)(7)(iv) of this section.
* * * * *
    (ii) For owners or operators of affected sources required to
request approval for a nominal control efficiency for use in
calculating credits for an emissions average, the information specified
in Sec. 63.1332(i) shall be submitted as specified in paragraph
(e)(7)(ii) (A) or (B) of this section, as appropriate.
    (A) If use of a nominal control efficiency is part of the initial
Emissions Averaging Plan described in paragraph (e)(4)(ii) of this
section, the information in paragraph (e)(7)(ii) of this section shall
be submitted with the Emissions Averaging Plan.
    (B) If an owner or operator elects to use a nominal control
efficiency after submittal of the initial Emissions Averaging Plan as
described in paragraph (e)(4)(ii) of this section, the information in
paragraph (e)(7)(ii) of this section shall be submitted at the
discretion of the owner or operator.
    (iii) When the conditions of Sec. 63.1310(f)(3)(i) or
Sec. 63.1310(f)(4)(i) are met, reports of changes to the primary
product for a TPPU or process unit as required by
Sec. 63.1310(f)(3)(ii) or (f)(4)(ii), respectively, shall be submitted.
    (iv) Owners or operators of TPPU or emission points (other than
equipment leak components subject to Sec. 63.1331) that are subject to
Sec. 63.1310(i)(1) or (i)(2) shall submit a report as specified in
paragraphs (e)(7)(iv) (A) and (B) of this section.
    (A) Reports shall include:
    (1) A description of the process change or addition, as
appropriate;
    (2) The planned start-up date and the appropriate compliance date,
according to Sec. 63.1310(i) (1) or (2); and
    (3) Identification of the group status of emission points (except
equipment leak components subject to Sec. 63.1331) specified in
paragraphs (e)(7)(iv)(A)(3)(i) through (e)(7)(iv)(A)(3)(iii) of this
section, as applicable.
    (i) All the emission points in the added TPPU as described in
Sec. 63.1310(i)(1).
    (ii) All the emission points in an affected source designated as a
new affected source under Sec. 63.1310(i)(2)(i).
    (iii) All the added or created emission points as described in
Sec. 63.1310(i)(2)(ii).
    (4) If the owner or operator wishes to request approval to use
alternative monitoring parameters, alternative continuous monitoring or
recordkeeping, alternative controls, engineering assessment to estimate
emissions from a batch emissions episode, or wishes to establish
parameter monitoring levels according to the procedures contained in
Sec. 63.1334 (c) or (d), a Precompliance Report shall be submitted in
accordance with paragraph (e)(7)(iv)(B) of this section.
    (B) Reports shall be submitted as specified in paragraphs
(e)(7)(iv)(B)(1) through (e)(7)(iv)(B)(3) of this section, as
appropriate.
    (1) Owners or operators of an added TPPU subject to
Sec. 63.1310(i)(1) shall submit a report no later than 180 days prior
to the compliance date for the TPPU.
    (2) Owners or operators of an affected source designated as a new
affected source under Sec. 63.1310(i)(2)(i) shall submit a report no
later than 180 days prior to the compliance date for the affected
source.
    (3) Owners or operators of any emission point (other than equipment
leak components subject to Sec. 63.1331) subject to
Sec. 63.1310(i)(2)(ii) shall submit a report no later than 180 days
prior to the compliance date for those emission points.
    (8) Operating permit application. An owner or operator who submits
an operating permit application instead of an Emissions Averaging Plan
or a Precompliance Report shall include the following information with
the operating permit application:
    (i) The information specified in paragraph (e)(4) of this section
for points included in an emissions average; and
    (ii) The information specified in paragraph (e)(3) of this section,
Precompliance Report, as applicable.
    (f) Alternative monitoring parameters. The owner or operator who
has been directed by any section of this subpart or any section of
another subpart referenced by this subpart, that expressly referenced
this paragraph (f) to set unique monitoring parameters, or who requests
approval to monitor a different parameter than those specified in
Sec. 63.1314 for storage vessels, Sec. 63.1315 or Sec. 63.1317, as
appropriate, for continuous process vents, Sec. 63.1321 for batch
process vents and aggregate batch vent streams, or Sec. 63.1330 for
process wastewater shall submit the information specified in paragraphs
(f)(1) through (f)(3) of this section in the Precompliance Report, as
required by paragraph (e)(3) of this section. The owner or operator
shall retain for a period of 5 years each record required by paragraphs
(f)(1) through (f)(3) of this section.
* * * * *
    (3) The required information shall include a description of the
proposed monitoring, recordkeeping, and reporting system, to include
the frequency and content of monitoring, recordkeeping, and reporting.
Further, the rationale for the proposed monitoring, recordkeeping, and
reporting system shall be included if either condition in paragraph
(f)(3)(i) or (f)(3)(ii) of this section is met:
* * * * *
    (g) Alternative continuous monitoring and recordkeeping. An owner
or operator choosing not to implement the provisions listed in
Sec. 63.1315 or Sec. 63.1317, as appropriate, for continuous process
vents, Sec. 63.1321 for batch process vents and aggregate batch vent
streams, or Sec. 63.1330 for process wastewater, may instead request
approval to use alternative continuous monitoring and recordkeeping
provisions according to the procedures specified in paragraphs (g)(1)
through (g)(4) of this section. Requests shall be submitted in the
Precompliance Report as specified in paragraph (e)(3)(iv) of this
section, if not already included in the operating permit application,
and shall contain the information specified in paragraphs (g)(2)(ii)
and (g)(3)(ii) of this section, as applicable.
* * * * *
    (3) An owner or operator may request approval to use an automated
data compression recording system that does not record monitored
operating parameter values at a set frequency, but records all values
that meet set criteria for variation from previously recorded values,
in accordance with paragraphs (g)(3)(i) and (g)(3)(ii) of this section.
    (i) * * *
    (A) Measure the operating parameter value at least once during
every 15 minute period;
* * * * *
    (4) An owner or operator may request approval to use other
alternative monitoring systems according to the procedures specified in
Sec. 63.8(f)(4).
    (h) Reduced recordkeeping program. For any parameter with respect
to any item of equipment, the owner or operator may implement the
recordkeeping requirements specified in paragraph (h)(1) or (h)(2) of
this section as alternatives to the continuous

[[Page 11698]]

operating parameter monitoring and recordkeeping provisions that would
otherwise apply under this subpart. The owner or operator shall retain
for a period of 5 years each record required by paragraph (h)(1) or
(h)(2) of this section, except as otherwise provided in paragraph
(h)(1)(vi)(D) of this section.
    (1) The owner or operator may retain only the daily average (or
batch cycle daily average) value, and is not required to retain more
frequent monitored operating parameter values, for a monitored
parameter with respect to an item of equipment, if the requirements of
paragraphs (h)(1)(i) through (h)(1)(vi) of this section are met. An
owner or operator electing to comply with the requirements of paragraph
(h)(1) of this section shall notify the Administrator in the
Notification of Compliance Status as specified in paragraph (e)(5)(xi)
of this section or, if the Notification of Compliance Status has
already been submitted, in the Periodic Report immediately preceding
implementation of the requirements of paragraph (h)(1) of this section
as specified in paragraph (e)(6)(ix) of this section.
* * * * *
    (ii) * * *
    (B) The running average is based on at least six 1-hour average
values; and
* * * * *
    (iv) The monitoring system will alert the owner or operator by an
alarm or other means, if the running average parameter value calculated
under paragraph (h)(1)(ii) of this section reaches a set point that is
appropriately related to the established limit for the parameter that
is being monitored.
* * * * *
    (vi) The owner or operator shall retain the records identified in
paragraphs (h)(1)(vi)(A) through (h)(1)(vi)(D) of this section.
* * * * *
    (B) A description of the applicable monitoring system(s), and of
how compliance will be achieved with each requirement of paragraphs
(h)(1)(i) through (h)(1)(v) of this section. The description shall
identify the location and format (e.g., on-line storage, log entries)
for each required record. If the description changes, the owner or
operator shall retain both the current and the most recent superseded
description, as provided in paragraph (a) of this section, except as
provided in paragraph (h)(1)(vi)(D) of this section.
    (C) A description, and the date, of any change to the monitoring
system that would reasonably be expected to impair its ability to
comply with the requirements of paragraph (h)(1) of this section.
    (D) Owners and operators subject to paragraph (h)(1)(vi)(B) of this
section shall retain the current description of the monitoring system
as long as the description is current. The current description shall,
at all times, be retained on-site or be accessible from a central
location by computer or other means that provides access within 2 hours
after a request. The owner or operator shall retain all superseded
descriptions for at least 5 years after the date of their creation.
Superseded descriptions shall be retained on-site (or accessible from a
central location by computer or other means that provides access within
2 hours after a request) for at least 6 months after their creation.
Thereafter, superseded descriptions may be stored off-site.
    (2) * * *
    (i) If the owner or operator elects not to retain the daily average
(or batch cycle daily average) values, the owner or operator shall
notify the Administrator in the next Periodic Report as specified in
paragraph (e)(6)(x) of this section. The notification shall identify
the parameter and unit of equipment.
* * * * *
    (iii) The owner or operator shall retain the records specified in
paragraphs (h)(1)(i) through (h)(1)(iii) of this section, for the
duration specified in paragraph (h) of this section. For any calendar
week, if compliance with paragraphs (h)(1)(i) through (h)(1)(iv) of
this section does not result in retention of a record of at least one
occurrence or measured parameter value, the owner or operator shall
record and retain at least one parameter value during a period of
operation other than a start-up, shutdown, or malfunction.
* * * * *
    54. Revising Tables 1, 2, 6, 7, and 8, and adding Table 9 to
Subpart JJJ of Part 63, to read as follows:

     Table 1 to Subpart JJJ of Part 63.--Applicability of General Provisions to Subpart JJJ Affected Sources
----------------------------------------------------------------------------------------------------------------
             Reference                  Applies to subpart JJJ                        Comment
----------------------------------------------------------------------------------------------------------------
63.1(a)(1).........................  Yes........................  Sec.  63.1312 specifies definitions in
                                                                   addition to or that supersede definitions in
                                                                   Sec.  63.2.
63.1(a)(2).........................  Yes........................
63.1(a)(3).........................  Yes........................  Sec.  63.1311(g) through (l) and Sec.
                                                                   63.160(b) identify those standards which may
                                                                   apply in addition to the requirements of
                                                                   subparts JJJ and H of this part, and specify
                                                                   how compliance shall be achieved.
63.1(a)(4).........................  Yes........................  Subpart JJJ (this table) specifies the
                                                                   applicability of each paragraph in subpart A
                                                                   to subpart JJJ.
63.1(a)(5).........................  No.........................  [Reserved.]
63.1(a)(6)-63.1(a)(8)..............  Yes........................
63.1(a)(9).........................  No.........................  [Reserved.]
63.1(a)(10)........................  Yes........................
63.1(a)(11)........................  Yes........................
63.1(a)(12)-63.1(a)(14)............  Yes........................
63.1(b)(1).........................  No.........................  Sec.  63.1310(a) contains specific
                                                                   applicability criteria.
63.1(b)(2).........................  Yes........................
63.1(b)(3).........................  No.........................  Sec.  63.1310(b) provides documentation
                                                                   requirements for TPPUs not considered
                                                                   affected sources.
63.1(c)(1).........................  Yes........................  Subpart JJJ (this table) specifies the
                                                                   applicability of each paragraph in subpart A
                                                                   to subpart JJJ.
63.1(c)(2).........................  No.........................  Area sources are not subject to subpart JJJ.
63.1(c)(3).........................  No.........................  [Reserved.]
63.1(c)(4).........................  Yes........................
63.1(c)(5).........................  Yes........................  Except that affected sources are not required
                                                                   to submit notifications that are not required
                                                                   by subpart U.
63.1(d)............................  No.........................  [Reserved.]

[[Page 11699]]

63.1(e)............................  Yes........................
63.2...............................  Yes........................  Sec.  63.1312 specifies those subpart A
                                                                   definitions that apply to subpart JJJ.
63.3...............................  Yes........................
63.4(a)(1)-63.4(a)(3)..............  Yes........................
63.4(a)(4).........................  No.........................  [Reserved.]
63.4(a)(5).........................  Yes........................
63.4(b)............................  Yes........................
63.4(c)............................  Yes........................
63.5(a)(1).........................  Yes........................  Except the terms ``source'' and ``stationary
                                                                   source'' should be interpreted as having the
                                                                   same meaning as ``affected source.''
63.5(a)(2).........................  Yes........................
63.5(b)(1).........................  Yes........................  Except Sec.  63.1310(i) defines when
                                                                   construction or reconstruction is subject to
                                                                   new source standards.
63.5(b)(2).........................  No.........................  [Reserved.]
63.5(b)(3).........................  Yes........................
63.5(b)(4).........................  Yes........................  Except that the Initial Notification and Sec.
                                                                   63.9(b) requirements do not apply.
63.5(b)(5).........................  Yes........................
63.5(b)(6).........................  Yes........................  Except that Sec.  63.1310(i) defines when
                                                                   construction or reconstruction is subject to
                                                                   new source standards.
63.5(c)............................  No.........................  [Reserved.]
63.5(d)(1)(i)......................  Yes........................  Except that the references to the Initial
                                                                   Notification and Sec.  63.9(b)(5) do not
                                                                   apply.
63.5(d)(1)(ii).....................  Yes........................  Except that Sec.  63.5(d)(1)(ii)(H) does not
                                                                   apply.
63.5(d)(1)(iii)....................  No.........................  Secs.  63.1335(e)(5) and 63.1331(a)(4) specify
                                                                   Notification of Compliance Status
                                                                   requirements.
63.5(d)(2).........................  No.........................
63.5(d)(3).........................  Yes........................  Except Sec.  63.5(d)(3)(ii) does not apply,
                                                                   and equipment leaks subject to Sec.  63.1331
                                                                   are exempt.
63.5(d)(4).........................  Yes........................
63.5(e)............................  Yes........................
63.5(f)(1).........................  Yes........................
63.5(f)(2).........................  Yes........................  Except that where Sec.  63.9(b)(2) is referred
                                                                   to, the owner or operator need not comply.
63.6(a)............................  Yes........................
63.6(b)(1).........................  Yes........................
63.6(b)(2).........................  Yes........................
63.6(b)(3).........................  Yes........................
63.6(b)(4).........................  Yes........................
63.6(b)(5).........................  Yes........................
63.6(b)(6).........................  No.........................  [Reserved.]
63.6(b)(7).........................  No.........................
63.6(c)(1).........................  Yes........................  Except that Sec.  63.1311 specifies the
                                                                   compliance date.
63.6(c)(2).........................  No.........................
63.6(c)(3).........................  No.........................  [Reserved.]
63.6(c)(4).........................  No.........................  [Reserved.]
63.6(c)(5).........................  Yes........................
63.6(d)............................  No.........................  [Reserved.]
63.6(e)............................  Yes........................  Except as otherwise specified for individual
                                                                   paragraphs, and Sec.  63.6(e) does not apply
                                                                   to Group 2 emission points, unless they are
                                                                   included in an emissions average.<SUP>a</SUP>
63.6(e)(1)(i)......................  No.........................  This is addressed by Sec.  63.1310(j)(4).
63.6(e)(1)(ii).....................  Yes........................
63.6(e)(1)(iii)....................  Yes........................
63.6(e)(2).........................  Yes........................
63.6(e)(3)(i)......................  Yes........................  For equipment leaks (subject to Sec.
                                                                   63.1331), the start-up, shutdown, and
                                                                   malfunction plan requirement of Sec.
                                                                   63.6(e)(3)(i) is limited to control devices
                                                                   and is optional for other equipment. The
                                                                   start-up, shutdown, malfunction plan may
                                                                   include written procedures that identify
                                                                   conditions that justify a delay of repair.
63.6(e)(3)(i)(A)...................  No.........................  This is addressed by Sec.  63.1310(j)(4).
63.6(e)(3)(i)(B)...................  Yes........................
63.6(e)(3)(i)(C)...................  Yes........................
63.6(e)(3)(ii).....................  Yes........................
63.6(e)(3)(iii)....................  No.........................  Recordkeeping and reporting are specified in
                                                                   Sec.  63.1335(b)(1).
63.6(e)(3)(iv).....................  No.........................  Recordkeeping and reporting are specified in
                                                                   Sec.  63.1335(b)(1).
63.6(e)(3)(v)......................  Yes........................
63.6(e)(3)(vi).....................  Yes........................
63.6(e)(3)(vii)....................  Yes........................
63.6(e)(3)(vii)(A).................  Yes........................
63.6(e)(3)(vii)(B).................  Yes........................  Except the plan shall provide for operation in
                                                                   compliance with Sec.  63.1310(j)(4).
63.6(e)(3)(vii)(C).................  Yes........................
63.6(e)(3)(viii)...................  Yes........................

[[Page 11700]]

63.6(f)(1).........................  Yes........................
63.6(f)(2).........................  Yes........................  Except Sec.  63.7(c), as referred to in Sec.
                                                                   63.6(f)(2)(iii)(D), does not apply, and
                                                                   except that Sec.  63.6(f)(2)(ii) does not
                                                                   apply to equipment leaks subject to Sec.
                                                                   63.1331.
63.6(f)(3).........................  Yes........................
63.6(g)............................  Yes........................
63.6(h)............................  No.........................  Subpart JJJ does not require opacity and
                                                                   visible emission standards.
63.6(i)(1).........................  Yes........................
63.6(i)(2).........................  Yes........................
63.6(i)(3).........................  Yes........................
63.6(i)(4)(i)(A)...................  Yes........................
63.6(i)(4)(i)(B)...................  No.........................  Dates are specified in Sec.  63.1311(e) and
                                                                   Sec.  63.1335(e)(3)(i).
63.6(i)(4)(ii).....................  No.........................
63.6(i)(5)-(14)....................  Yes........................
63.6(i)(15)........................  No.........................  [Reserved.]
63.6(i)(16)........................  Yes........................
63.6(j)............................  Yes........................
63.7(a)(1).........................  Yes........................
63.7(a)(2).........................  No.........................  Sec.  63.1335(e)(5) specifies the submittal
                                                                   dates of performance test results for all
                                                                   emission points except equipment leaks; for
                                                                   equipment leaks, compliance demonstration
                                                                   results are reported in the Periodic Reports.
63.7(a)(3).........................  Yes........................
63.7(b)............................  No.........................  Sec.  63.1333(a)(4) specifies notification
                                                                   requirements.
63.7(c)............................  No.........................
63.7(d)............................  Yes........................
63.7(e)(1).........................  Yes........................  Except that all performance tests shall be
                                                                   conducted at maximum representative operating
                                                                   conditions achievable at the time without
                                                                   disruption of operations or damage to
                                                                   equipment.
63.7(e)(2).........................  Yes........................
63.7(e)(3).........................  No.........................  Subpart JJJ specifies requirements.
63.7(e)(4).........................  Yes........................
63.7(f)............................  Yes........................  Except that Sec.  63.144(b)(5)(iii)(A) and (B)
                                                                   shall apply for process wastewater. Also,
                                                                   because a site specific test plan is not
                                                                   required, the notification deadline in Sec.
                                                                   63.7(f)(2)(i) shall be 60 days prior to the
                                                                   performance test, and in Sec.  63.7(f)(3),
                                                                   approval or disapproval of the alternative
                                                                   test method shall not be tied to the site
                                                                   specific test plan.
                  63.7(g)            Yes........................  Except that the requirements in Sec.
                                                                   63.1335(e)(5) apply instead of references to
                                                                   the Notification of Compliance Status report
                                                                   in Sec.  63.9(h). In addition, equipment
                                                                   leaks subject to Sec.  63.1331 are not
                                                                   required to conduct performance tests.
63.7(h)............................  Yes........................  Except Sec.  63.7(h)(4)(ii) is not applicable,
                                                                   because the site-specific test plans in Sec.
                                                                   63.7(c)(2) are not required.
63.8(a)(1).........................  Yes.
63.8(a)(2).........................  No.
63.8(a)(3).........................  No.........................  [Reserved.]
63.8(a)(4).........................  Yes.
63.8(b)(1).........................  Yes.
63.8(b)(2).........................  No.........................  Subpart JJJ specifies locations to conduct
                                                                   monitoring.
63.8(b)(3).........................  Yes.
63.8(c)(1).........................  Yes.
63.8(c)(1)(i)......................  Yes.
63.8(c)(1)(ii).....................  No.........................  For all emission points except equipment
                                                                   leaks, comply with Sec.  63.1335(b)(1)(i)(B);
                                                                   for equipment leaks, comply with Sec.
                                                                   63.181(g)(2)(iii).
63.8(c)(1)(iii)....................  Yes.
63.8(c)(2).........................  Yes.
63.8(c)(3).........................  Yes.
63.8(c)(4).........................  No.........................  Sec.  63.1334 specifies monitoring frequency;
                                                                   not applicable to equipment leaks because
                                                                   Sec.  63.1331 does not require continuous
                                                                   monitoring systems.
63.8(c)(5)-63.8(c)(8)..............  No.
63.8(d)............................  No.
63.8(e)............................  No.
63.8(f)(1)-63.8(f)(3)..............  Yes.
63.8(f)(4)(i)......................  No.........................  Timeframe for submitting request is specified
                                                                   in Sec.  63.1335(f) or (g); not applicable to
                                                                   equipment leaks because Sec.  63.1331
                                                                   (through reference to subpart H) specifies
                                                                   acceptable alternative methods.
63.8(f)(4)(ii).....................  No.........................  Contents of request are specified in Sec.
                                                                   63.1335(f) or (g).
63.8(f)(4)(iii)....................  No.
63.8(f)(5)(i)......................  Yes.
63.8(f)(5)(ii).....................  No.
63.8(f)(5)(iii)....................  Yes.
63.8(f)(6).........................  No.........................  Subpart JJJ does not require continuous
                                                                   emission monitors.

[[Page 11701]]

63.8(g)............................  No.........................  Data reduction procedures specified in Sec.
                                                                   63.1335 (d) and (h); not applicable to
                                                                   equipment leaks.
63.9(a)............................  Yes.
63.9(b)............................  No.........................    Subpart JJJ does not require an initial
                                                                   notification.
63.9(c)............................  Yes.
63.9(d)............................  Yes.
63.9(e)............................  No.........................  Sec.  63.1333(a)(4) specifies notification
                                                                   deadline.
63.9(f)............................  No.........................  Subpart JJJ does not require opacity and
                                                                   visible emission standards.
63.9(g)............................  No.
63.9(h)............................  No.........................  Sec.  63.1335(e)(5) specifies Notification of
                                                                   Compliance Status requirements.
63.9(i)............................  Yes.
63.9(j)............................  No.
63.10(a)...........................  Yes.
63.10(b)(1)........................  No.........................  Sec.  63.1335(a) specifies record retention
                                                                   requirements.
63.10(b)(2)........................  No.........................  Subpart JJJ specifies recordkeeping
                                                                   requirements.
63.10(b)(3)........................  No.........................  Sec.  63.1310(b) requires documentation of
                                                                   sources that are not affected sources.
63.10(c)...........................  No.........................  Sec.  63.1335 specifies recordkeeping
                                                                   requirements.
63.10(d)(1)........................  Yes.
63.10(d)(2)........................  No.........................  Sec.  63.1335(e) specifies performance test
                                                                   reporting requirements; not applicable to
                                                                   equipment leaks.
63.10(d)(3)........................  No.........................  Subpart JJJ does not require opacity and
                                                                   visible emission standards.
63.10(d)(4)........................  Yes.
63.10(d)(5)........................  Yes........................  Except that reports required by Sec.
                                                                   63.10(d)(5)(i) and/or Sec.  63.10(d)(5)(ii)
                                                                   may be submitted at the same time as Periodic
                                                                   Reports specified in Sec.  63.1335(e)(6). The
                                                                   start-up, shutdown, and malfunction plan, and
                                                                   any records or reports of start-up, shutdown,
                                                                   and malfunction do not apply to Group 2
                                                                   emission points unless they are included in
                                                                   an emissions average.
63.10(e)...........................  No.........................  Sec.  63.1335 specifies reporting
                                                                   requirements.
63.10(f)...........................  Yes.
63.11..............................  Yes........................  Except that instead of Sec.  63.11(b), Sec.
                                                                   63.1333(e) shall apply.
63.12..............................  Yes........................  Except that the authority of Sec.  63.1332(i)
                                                                   and the authority of Sec.  63.177 (for
                                                                   equipment leaks) shall not be delegated to
                                                                   States.
63.13--63.15.......................  Yes.
----------------------------------------------------------------------------------------------------------------
\a\ The plan, and any records or reports of start-up, shutdown, and malfunction do not apply to Group 2 emission
  points unless they are included in an emissions average.

 Table 2 to Subpart JJJ of Part 63.--Group 1 Storage Vessels at Existing
                            Affected Sources
------------------------------------------------------------------------
                                                       Vapor pressure <SUP>a</SUP>
           Vessel capacity  (cubic meters)               (kilopascals)
------------------------------------------------------------------------
75 <ls-thn-eq> capacity < 151.......................    <gr-thn-eq> 13.1
151 <ls-thn-eq> capacity............................     <gr-thn-eq> 5.2
------------------------------------------------------------------------
<SUP>a</SUP> Maximum true vapor pressure of total organic HAP at storage
  temperature.

* * * * *

                       Table 6 to Subpart JJJ of Part 63.--Known Organic HAP Emitted From the Production of Thermoplastic Products
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                Organic HAP/chemical name (CAS No.)
                                         ---------------------------------------------------------------------------------------------------------------
    Thermoplastic product/subcategory                                                                        Ethylene
                                           Acetaldehyde    Acrylonitrile   1,3 Butadiene    1,4-Dioxane    Glycol  (107-  Methanol  (67-  Styrene  (100-
                                             (75-07-0)      (107-13-1)      (106-99-0)      (123-91-1)         21-1)           56-1)           42-5)
--------------------------------------------------------------------------------------------------------------------------------------------------------
ABS latex...............................
ABS using a batch emulsion process......
ABS using a batch suspension process....
ABS using a continuous emulsion process.
ABS using a continuous mass process.....
ASA/AMSAN...............................
EPS.....................................

[[Page 11702]]

MABS....................................
MBS.....................................
Nitrile resin...........................
PET using a batch dimethyl terephthalate
 process................................
PET using a batch terephthalic acid
 process................................
PET using a continuous dimethyl
 terephthalate process..................
PET using a continuous terephthalic acid
 process................................
PET using a continuous terephthalic acid
 high viscosity multiple end finisher
 process................................
Polystyrene resin using a batch process.
Polystyrene resin using a continuous
 process................................
SAN using a batch process...............
SAN using a continuous process..........
--------------------------------------------------------------------------------------------------------------------------------------------------------
CAS No. = Chemical Abstract Service Number
ABS = Acrylonitrile butadiene styrene resin
ASA/AMSAN = Acrylonitrile styrene resin/alpha methyl styrene acrylonitrile resin
EPS = expandable polystyrene resin
MABS = methyl methacrylate acrylonitrile butadiene styrene resin
PET = poly(ethylene terephthalate) resin
SAN = styrene acrylonitrile resin
MBS = methyl methacrylate butadiene styrene resin

  Table 7 of Subpart JJJ of Part 63.--Group 1 Batch Process Vents and Aggregate Batch Vent Streams--Monitoring,
                                    Recordkeeping, and Reporting Requirements
----------------------------------------------------------------------------------------------------------------
                                                                   Recordkeeping and reporting requirements for
           Control device             Parameters to be monitored               monitored  parameters
----------------------------------------------------------------------------------------------------------------
Thermal Incinerator................  Firebox temperature <SUP>a</SUP>......  1. Continuous records as specified in Sec.
                                                                   63.1326(e)(1).<SUP>b</SUP>
                                                                  2. Record and report the average firebox
                                                                   temperature measured during the performance
                                                                   test--NCS. <SUP>c</SUP>
                                                                  3. Record the batch cycle daily average
                                                                   firebox temperature as specified in Sec.
                                                                   63.1326(e)(2).
                                                                  4. Report all batch cycle daily average
                                                                   temperatures that are below the minimum
                                                                   operating value established in the NCS or
                                                                   operating permit and all instances when
                                                                   monitoring data are not collected--PR.<SUP>d</SUP> <SUP>e</SUP>
Catalytic Incinerator..............  Temperature upstream and     1. Continuous records as specified in Sec.
                                      downstream of the catalyst   63.1326(e)(1). <SUP>b</SUP>
                                      bed.
                                                                  2. Record and report the average upstream and
                                                                   downstream temperatures and the average
                                                                   temperature difference across the catalyst
                                                                   bed measured during the performance test--
                                                                   NCS.<SUP>c</SUP>
                                                                  3. Record the batch cycle daily average
                                                                   upstream temperature and temperature
                                                                   difference across catalyst bed as specified
                                                                   in Sec.  63.1326(e)(2).
                                                                  4. Report all batch cycle daily average
                                                                   upstream temperatures that are below the
                                                                   minimum upstream value established in the NCS
                                                                   or operating permit--PR. <SUP>d</SUP> <SUP>e</SUP>
                                                                  5. Report all batch cycle daily average
                                                                   temperature differences across the catalyst
                                                                   bed that are below the minimum difference.
Boiler or Process Heater with a      Firebox temperature <SUP>a</SUP>......  1. Continuous records as specified in Sec.
 design heat input capacity less                                   63.1326(e)(1).<SUP>b</SUP>
 than 44 megawatts and where the                                  2. Record and report the average firebox
 batch process vents or aggregate                                  temperature measured during the performance
 batch vent streams are not                                        test--NCS.<SUP>c</SUP>
 introduced with or used as the                                   3. Record the batch cycle daily average
 primary fuel.                                                     firebox temperature as specified in Sec.
                                                                   63.1326(e)(2).<SUP>d</SUP>
                                                                  4. Report all batch cycle daily average
                                                                   temperatures that are below the minimum
                                                                   operating value established in the NCS or
                                                                   operating permit and all instances when
                                                                   monitoring data are not collected--PR. <SUP>d</SUP> <SUP>e</SUP>

[[Page 11703]]

Flare..............................  Presence of a flame at the   1. Hourly records of whether the monitor was
                                      pilot light.                 continuously operating during batch emission
                                                                   episodes, or portions thereof, selected for
                                                                   control and whether a flame was continuously
                                                                   present at the pilot light during said
                                                                   periods.
                                                                  2. Record and report the presence of a flame
                                                                   at the pilot light over the full period of
                                                                   the compliance determination--NCS. <SUP>c</SUP>
                                                                  3. Record the times and durations of all
                                                                   periods during batch emission episodes, or
                                                                   portions thereof, selected for control when
                                                                   all flames at the pilot light of a flare are
                                                                   absent or the monitor is not operating.
                                                                  4. Report the times and durations of all
                                                                   periods during batch emission episodes, or
                                                                   portions thereof, selected for control when
                                                                   all flames at the pilot light of a flare are
                                                                   absent--PR.<SUP>d</SUP>
Scrubber for halogenated batch       pH of scrubber effluent,     1. Continuous records as specified in Sec.
 process vents or aggregate batch     and.                         63.1326(e)(1). <SUP>b</SUP>
 vent streams (Note: Controlled by                                2. Record and report the average pH of the
 a combustion device other than a                                  scrubber effluent measured during the
 flare).                                                           performance test--NCS. <SUP>c</SUP>
                                                                  3. Record the batch cycle daily average pH of
                                                                   the scrubber effluent as specified in Sec.
                                                                   63.1326(e)(2).
                                                                  4. Report all batch cycle daily average pH
                                                                   values of the scrubber effluent that are
                                                                   below the minimum operating value established
                                                                   in the NCS or operating permit and all
                                                                   instances when monitoring data are not
                                                                   collected--PR.<SUP>d</SUP> <SUP>e</SUP>
                                     Scrubber liquid and gas      1. Records as specified in Sec.
                                      flow rates [Sec.             63.1326(e)(1). <SUP>b</SUP>
                                      63.1324(b)(4)(ii)].         2. Record and report the scrubber liquid/gas
                                                                   ratio averaged over the full period of the
                                                                   performance test--NCS. <SUP>c</SUP>
                                                                  3. Record the batch cycle daily average
                                                                   scrubber liquid/gas ratio as specified in
                                                                   Sec.  63.1326(e)(2).
                                                                  4. Report all batch cycle daily average
                                                                   scrubber liquid/gas ratios that are below the
                                                                   minimum value established in the NCS or
                                                                   operating permit and all instances when
                                                                   monitoring data are not collected--PR. <SUP>d</SUP> <SUP>e</SUP>
Absorber <SUP>f</SUP>.........................  Exit temperature of the      1. Continuous records as specified in Sec.
                                      absorbing liquid, and.       63.1326(e)(1). <SUP>b</SUP>
                                                                  2. Record and report the average exit
                                                                   temperature of the absorbing liquid measured
                                                                   during the performance test--NCS. <SUP>c</SUP>
                                                                  3. Record the batch cycle daily average exit
                                                                   temperature of the absorbing liquid as
                                                                   specified in Sec.  63.1326(e)(2) for each
                                                                   batch cycle.
                                                                  4. Report all the batch cycle daily average
                                                                   exit temperatures of the absorbing liquid
                                                                   that are below the minimum operating value
                                                                   established in the NCS or operating permit
                                                                   and all instances when monitoring data are
                                                                   not collected--PR. <SUP>d</SUP> <SUP>e</SUP>
                                     Exit specific gravity for    1. Continuous records as specified in Sec.
                                      the absorbing liquid.        63.1326(e)(1). <SUP>b</SUP>
                                                                  2. Record and report the average exit specific
                                                                   gravity measured during the performance test--
                                                                   NCS. <SUP>c</SUP>
                                                                  3. Record the batch cycle daily average exit
                                                                   specific gravity as specified in Sec.
                                                                   63.1326(e)(2).
                                                                  4. Report all batch cycle daily average exit
                                                                   specific gravity values that are below the
                                                                   minimum operating value established in the
                                                                   NCS or operating permit and all instances
                                                                   when monitoring data are not collected--PR.<SUP>d</SUP>
                                                                   <SUP>e</SUP>
Condenser <SUP>f</SUP>........................  Exit (product side)          1. Continuous records as specified in Sec.
                                      temperature.                 63.1326(e)(1).<SUP>b</SUP>
                                                                  2. Record and report the average exit
                                                                   temperature measured during the performance
                                                                   test--NCS.<SUP>c</SUP>
                                                                  3. Record the batch cycle daily average exit
                                                                   temperature as specified in Sec.
                                                                   63.1326(e)(2).
                                                                  4. Report all batch cycle daily average exit
                                                                   temperatures that are above the maximum
                                                                   operating value established in the NCS or
                                                                   operating permit and all instances when
                                                                   monitoring data are not collected--PR.<SUP>d</SUP> <SUP>e</SUP>
Carbon Adsorber <SUP>f</SUP>..................  Total regeneration steam     1. Record the total regeneration steam flow or
                                      flow or nitrogen flow, or    nitrogen flow, or pressure for each carbon
                                      pressure (gauge or           bed regeneration cycle.
                                      absolute) during carbon     2. Record and report the total regeneration
                                      bed regeneration cycle(s),   steam flow or nitrogen flow, or pressure
                                      and.                         during each carbon bed regeneration cycle
                                                                   measured during the performance test--NCS.<SUP>c</SUP>
                                                                  3. Report all carbon bed regeneration cycles
                                                                   when the total regeneration steam flow or
                                                                   nitrogen flow, or pressure is above the
                                                                   maximum value established in the NCS or
                                                                   operating permit--PR.<SUP>d</SUP> <SUP>e</SUP>

[[Page 11704]]

                                     Temperature of the carbon    1. Record the temperature of the carbon bed
                                      bed after regeneration and   after each regeneration and within 15 minutes
                                      within 15 minutes of         of completing any cooling cycle(s).
                                      completing any cooling      2. Record and report the temperature of the
                                      cycle(s).                    carbon bed after each regeneration and within
                                                                   15 minutes of completing any cooling
                                                                   cycles(s) measured during the performance
                                                                   test--NCS.<SUP>c</SUP>
                                                                  3. Report all carbon bed regeneration cycles
                                                                   when the temperature of the carbon bed after
                                                                   regeneration, or within 15 minutes of
                                                                   completing any cooling cycle(s), is above the
                                                                   maximum value established in the NCS or
                                                                   operating permit--PR.<SUP>d</SUP> <SUP>e</SUP>
All Control Devices................  Diversion to the atmosphere  1. Hourly records of whether the flow
                                      from the control device or.  indicator was operating during batch emission
                                                                   episodes, or portions thereof, selected for
                                                                   control and whether a diversion was detected
                                                                   at any time during said periods as specified
                                                                   in Sec.  63.1326(e)(3).
                                                                  2. Record and report the times of all periods
                                                                   during batch emission episodes, or portions
                                                                   thereof, selected for control when emissions
                                                                   are diverted through a bypass line or the
                                                                   flow indicator is not operating--PR.<SUP>d</SUP>
                                     Monthly inspections of       1. Records that monthly inspections were
                                      sealed valves.               performed as specified in Sec.
                                                                   63.1326(e)(4)(i).
                                                                  2. Record and report all monthly inspections
                                                                   that show the valves are in the diverting
                                                                   position or that a seal has been broken--PR.<SUP>d</SUP>
Absorber, Condenser, and Carbon      Concentration level or       1. Continuous records as specified in Sec.
 Adsorber (as an alternative to the   reading indicated by an      63.1326(e)(1).<SUP>b</SUP>
 requirements previously presented    organic monitoring device   2. Record and report the average batch vent
 in this table).                      at the outlet of the         concentration level or reading measured
                                      control device.              during the performance test--NCS.<SUP>c</SUP>
                                                                  3. Record the batch cycle daily average
                                                                   concentration level or reading as specified
                                                                   in Sec.  63.1326(e)(2).
                                                                  4. Report all batch cycle daily average
                                                                   concentration levels or readings that are
                                                                   above the maximum value established in the
                                                                   NCS or operating permit and all instances
                                                                   when monitoring data are not collected--PR.<SUP>d</SUP>
                                                                   <SUP>e</SUP>
----------------------------------------------------------------------------------------------------------------
<SUP>a</SUP> Monitor may be installed in the firebox or in the ductwork immediately downstream of the firebox before any
  substantial heat exchange is encountered.
<SUP>b</SUP> ``Continuous records'' is defined in Sec.  63.111.
<SUP>c</SUP> NCS = Notification of Compliance Status described in Sec.  63.1335(e)(5).
<SUP>d</SUP> PR = Periodic Reports described in Sec.  63.1335(e)(6).
<SUP>e</SUP> The periodic reports shall include the duration of periods when monitoring data are not collected as specified
  in Sec.  63.1335(e)(6)(iii)(C).
<SUP>f</SUP> Alternatively, these devices may comply with the organic monitoring device provisions listed at the end of
  this table.

  Table 8 to Subpart JJJ of Part 63.--Operating Parameters for Which Levels Are Required To Be Established for
                       Continuous and Batch Process Vents and Aggregate Batch Vent Streams
----------------------------------------------------------------------------------------------------------------
                                                                                     Established operating
             Device                        Parameters to be monitored                     parameter(s)
----------------------------------------------------------------------------------------------------------------
Thermal incinerator.............  Firebox temperature........................  Minimum temperature.
Catalytic incinerator...........  Temperature upstream and downstream of the   Minimum upstream temperature; and
                                   catalyst bed.                                minimum temperature difference
                                                                                across the catalyst bed.
Boiler or process heater........  Firebox temperature........................  Minimum temperature.
Scrubber for halogenated vents..  pH of scrubber effluent; and scrubber        Minimum pH; and minimum liquid/
                                   liquid and gas flow rates [Sec.              gas ratio.
                                   63.1324(b)(4)(ii)].
Absorber........................  Exit temperature of the absorbing liquid;    Maximum temperature; and maximum
                                   and exit specific gravity of the absorbing   specific gravity.
                                   liquid.
Condenser.......................  Exit temperature...........................  Maximum temperature.
Carbon adsorber.................  Total regeneration steam flow or nitrogen    Maximum flow or pressure; and
                                   flow, or pressure (gauge or absolute) <SUP>a</SUP>      maximum temperature.
                                   during carbon bed regeneration cycle; and
                                   temperature of the carbon bed after
                                   regeneration (and within 15 minutes of
                                   completing any cooling cycle(s)).
Other devices (or as an           HAP concentration level or reading at        Maximum HAP concentration or
 alternate to the requirements     outlet of device.                            reading.
 previously presented in this
 table) <SUP>b</SUP>.
----------------------------------------------------------------------------------------------------------------
<SUP>a</SUP> 25 to 50 mm (absolute) is a common pressure level obtained by pressure swing absorbers.
<SUP>b</SUP> Concentration is measured instead of an operating parameter.

[[Page 11705]]

                  Table 9 of Subpart JJJ of Part 63.--Routine Reports Required by This Subpart
----------------------------------------------------------------------------------------------------------------
            Reference                   Description of report                          Due date
----------------------------------------------------------------------------------------------------------------
Sec.  63.1335(b) and Subpart A..  Refer to Table 1 and Subpart A...  Refer to Subpart A.
63.1335(e)(3)...................  Precompliance Report <SUP>a</SUP>...........  Existing affected sources--12 months prior
                                                                      to the compliance date. New affected
                                                                      sources--with application for approval of
                                                                      construction or reconstruction.
63.1335(e)(4)...................  Emissions Averaging Plan.........  18 months prior to the compliance date.
63.1335(e)(4)(iv)...............  Updates to Emissions Averaging     120 days prior to making the change
                                   Plan.                              necessitating the update.
63.1335(e)(5)...................  Notification of Compliance Status  Within 150 days after the compliance date.
                                   <SUP>b</SUP>.
63.1335(e)(6)...................  Periodic Reports.................  Semiannually, no later than 60 days after
                                                                      the end of each 6-month period. See Sec.
                                                                      63.1335(e)(6)(i) for the due date for the
                                                                      first report.
63.1335(e)(6)(xi)...............  Quarterly reports for Emissions    No later than 60 days after the end of each
                                   Averaging.                         quarter. First report is due with the
                                                                      Notification of Compliance Status.
63.1335(e)(6)(xii)..............  Quarterly reports upon request of  No later than 60 days after the end of each
                                   the Administrator.                 quarter.
63.1335(e)(7)(i)................  Storage Vessels Notification of    At least 30 days prior to the refilling of
                                   Inspection..                       each storage vessel or the inspection of
                                                                      each storage vessel.
63.1335(e)(7)(ii)...............  Requests for Approval of a         Initial submittal is due with the Emissions
                                   Nominal Control Efficiency for     Averaging Plan specified in Sec.
                                   Use in Emissions Averaging.        63.1335(e)(4)(ii); later submittals are
                                                                      made at the discretion of the owner or
                                                                      operator as specified in Sec.
                                                                      63.1335(e)(7)(ii)(B).
63.1335(e)(7)(iii)..............  Notification of Change in the      For Notification under Sec.
                                   Primary Product.                   63.1310(f)(3)(ii)--notification submittal
                                                                      date at the discretion of the owner or
                                                                      operator.<SUP>c</SUP>
                                                                     For Notification under Sec.
                                                                      63.1310(f)(4)(ii)--within 6 months of
                                                                      making the determination.
----------------------------------------------------------------------------------------------------------------
<SUP>a</SUP> There may be two versions of this report due at different times; one for equipment subject to Sec.  63.1331
  and one for other emission points subject to this subpart.
<SUP>b</SUP> There will be two versions of this report due at different times; one for equipment subject to Sec.  63.1331
  and one for other emission points subject to this subpart.
<SUP>c</SUP> Note that the TPPU remains subject to this subpart until the notification under Sec.  63.1310(f)(3)(i) is
  made.

[FR Doc. 99-3853 Filed 3-8-99; 8:45 am]
BILLING CODE 6560-50-P