Sec.  60.106a  Monitoring of emissions and operations for sulfur
recovery plants.

    (a) * * *
    (1) * * *
    (iii) The owner or operator shall conduct performance evaluations
of each SO2 monitor according to the requirements in Sec.
60.13(c) and Performance Specification 2 of appendix B to part 60. The
owner or operator shall use Method 6 or 6C of appendix A-4 to part 60.
The method ANSI/ASME PTC 19.10-1981, ``Flue and Exhaust Gas Analyses,''
(incorporated by reference--see Sec.  60.17) is an acceptable
alternative to EPA Method 6.
* * * * *

PART 63--NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS
FOR SOURCE CATEGORIES

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

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

Subpart CC--National Emission Standards for Hazardous Air
Pollutants From Petroleum Refineries

0
6. Section 63.641 is amended by:
0
a. Revising the definitions of ``Flare purge gas'' and ``Flare
supplemental gas'';
0
b. Adding a definition of ``Pressure relief device'' in alphabetical
order;
0
c. Revising the introductory text and adding paragraphs (1)(i) and (ii)
to the definition of ``Reference control technology for storage
vessels''; and
0
d. Revising the definition of ``Relief valve''.
    The revisions and addition read as follows:

Sec.  63.641  Definitions.

* * * * *
    Flare purge gas means gas introduced between a flare header's water
seal and the flare tip to prevent oxygen infiltration (backflow) into
the flare tip or for other safety reasons. For a flare with no water
seal, the function of flare purge gas is performed by flare sweep gas
and, therefore, by definition, such a flare has no flare purge gas.
    Flare supplemental gas means all gas introduced to the flare to
improve the heat content of combustion zone gas. Flare supplemental gas
does not include assist air or assist steam.
* * * * *
    Pressure relief device means a valve, rupture disk, or similar
device used only to release an unplanned, nonroutine discharge of gas
from process equipment in order to avoid safety hazards or equipment
damage. A pressure relief device discharge can result from an operator
error, a malfunction such as a power failure or equipment failure, or
other unexpected cause. Such devices include conventional, spring-
actuated relief valves, balanced bellows relief valves, pilot-operated
relief valves, rupture disks, and breaking, buckling, or shearing pin
devices.
* * * * *
    Reference control technology for storage vessels means either:
    (1) * * *
    (i) An internal floating roof, including an external floating roof
converted to an internal floating roof, meeting the specifications of
Sec.  63.1063(a)(1)(i), (a)(2), and (b) and Sec.  63.660(b)(2);
    (ii) An external floating roof meeting the specifications of Sec.
63.1063(a)(1)(ii), (a)(2), and (b) and Sec.  63.660(b)(2); or
* * * * *
    Relief valve means a type of pressure relief device that is
designed to re-close after the pressure relief.
* * * * *

0
7. Section 63.643 is amended by:
0
a. Revising paragraphs (c) introductory text, (c)(1) introductory text,
and (c)(1)(ii) through (iv); and
0
b. Adding a new paragraph (c)(1)(v).
    The revisions and addition read as follows:

Sec.  63.643  Miscellaneous process vent provisions.

* * * * *
    (c) An owner or operator may designate a process vent as a
maintenance vent if the vent is only used as a result of startup,
shutdown, maintenance, or inspection of equipment where equipment is
emptied, depressurized, degassed or placed into service. The owner or
operator does not need to designate a maintenance vent as a Group 1 or
Group 2 miscellaneous process vent nor identify maintenance vents in a
Notification of Compliance Status report. The owner or operator must
comply with the applicable requirements in paragraphs (c)(1) through
(3) of this section for each maintenance vent according to the
compliance dates specified in table 11 of this subpart, unless an
extension is requested in accordance with the provisions in Sec.
63.6(i).
    (1) Prior to venting to the atmosphere, process liquids are removed
from the equipment as much as practical and the equipment is
depressured to a control device meeting requirements in paragraphs
(a)(1) or (2) of this section, a fuel gas system, or back to the
process until one of the following conditions, as applicable, is met.
* * * * *
    (ii) If there is no ability to measure the LEL of the vapor in the
equipment based on the design of the equipment, the pressure in the
equipment served by the maintenance vent is reduced to 5 pounds per
square inch gauge (psig) or less. Upon opening the maintenance vent,
active purging of the equipment cannot be used until the LEL of the
vapors in the maintenance vent (or inside the equipment if the
maintenance is a hatch or similar type of opening) is less than 10
percent.
    (iii) The equipment served by the maintenance vent contains less
than 72 pounds of total volatile organic compounds (VOC).
    (iv) If the maintenance vent is associated with equipment
containing pyrophoric catalyst (e.g., hydrotreaters and hydrocrackers)
and a pure hydrogen supply is not available at the equipment at the
time of the startup, shutdown, maintenance, or inspection activity, the
LEL of the vapor in the equipment must be less than 20 percent, except
for one event per year not to exceed 35 percent.
    (v) If, after applying best practices to isolate and purge
equipment served by a maintenance vent, none of the applicable
criterion in paragraphs (c)(1)(i) through (iv) can be met prior to
installing or removing a blind flange or similar equipment blind, the
pressure in the equipment served by the maintenance vent is reduced to
2 psig or less, Active purging of the equipment may be used provided
the equipment pressure at the location where purge gas is introduced
remains at 2 psig or less.
* * * * *

0
8. Section 63.644 is amended by:
0
a. Revising paragraph (c) introductory text;
0
b. Removing the period at the end of paragraph (c)(2) and adding ``;
or'' in its place; and
0
c. Adding paragraph (c)(3).
    The revision and addition read as follows:

Sec.  63.644  Monitoring provisions for miscellaneous process vents.

* * * * *
    (c) The owner or operator of a Group 1 miscellaneous process vent
using a vent system that contains bypass lines that could divert a vent
stream away from the control device used to comply with paragraph (a)
of this section either directly to the atmosphere or to a control
device that does not comply with the requirements in Sec.  63.643(a)
shall comply with either paragraph (c)(1), (2), or (3) of this section.
Use of the bypass at any time to divert a Group 1 miscellaneous process
vent stream to the atmosphere or to a control device that does not
comply with the requirements in Sec.  63.643(a) is an emissions
standards violation. Equipment such as low leg drains and equipment
subject to Sec.  63.648 are not subject to this paragraph (c).
* * * * *
    (3) Use a cap, blind flange, plug, or a second valve for an open-
ended valve or line following the requirements specified in Sec.
60.482-6(a)(2), (b) and (c).
* * * * *

0
9. Section 63.648 is amended by:
0
a. Revising the introductory text of paragraphs (a), (c), and (j); and
0
b. Revising paragraphs (j)(3)(ii)(A) and (E), (j)(3)(iv), (j)(3)(v)
introductory text, and (j)(4).
    The revisions read as follows:

Sec.  63.648  Equipment leak standards.

    (a) Each owner or operator of an existing source subject to the
provisions of this subpart shall comply with the provisions of 40 CFR
part 60, subpart VV, and paragraph (b) of this section except as
provided in paragraphs (a)(1) through (3), and (c) through (j) of this
section. Each owner or operator of a new source subject to the
provisions of this subpart shall comply with subpart H of this part
except as provided in paragraphs (c) through (j) of this section.
* * * * *
    (c) In lieu of complying with the existing source provisions of
paragraph (a) in this section, an owner or operator may elect to comply
with the requirements of Sec. Sec.  63.161 through 63.169, 63.171,
63.172, 63.175, 63.176, 63.177, 63.179, and 63.180 except as provided
in paragraphs (c)(1) through (12) and (e) through (j) of this section.
* * * * *
    (j) Except as specified in paragraph (j)(4) of this section, the
owner or operator must comply with the requirements specified in
paragraphs (j)(1) and (2) of this section for pressure relief devices,
such as relief valves or rupture disks, in organic HAP gas or vapor
service instead of the pressure relief device requirements of Sec.
60.482-4 or Sec.  63.165, as applicable. Except as specified in
paragraphs (j)(4) and (5) of this section, the owner or operator must
also comply with the requirements specified in paragraph (j)(3) of this
section for all pressure relief devices in organic HAP service.
* * * * *
    (3) * * *
    (ii) * * *
    (A) Flow, temperature, liquid level and pressure indicators with
deadman switches, monitors, or automatic actuators. Independent, non-
duplicative systems within this category count as separate redundant
prevention measures.
* * * * *
    (E) Staged relief system where initial pressure relief device (with
lower set release pressure) discharges to a flare or other closed vent
system and control device.
* * * * *
    (iv) The owner or operator shall determine the total number of
release events occurred during the calendar year for each affected
pressure relief device separately. The owner or operator shall also
determine the total number of release events for each pressure relief
device for which the root cause analysis concluded that the root cause
was a force majeure event, as defined in this subpart.
    (v) Except for pressure relief devices described in paragraphs
(j)(4) and (5) of this section, the following release events from an
affected pressure relief device are a violation of the pressure release
management work practice standards:
* * * * *

    (4) Pressure relief devices routed to a control device. (i) If all
releases and potential leaks from a pressure relief device are routed
through a closed vent system to a control device, back into the process
or to the fuel gas system, the owner or operator is not required to
comply with paragraph (j)(1), (2), or (3) (if applicable) of this
section.
    (ii) If a pilot-operated pressure relief device is used and the
primary release valve is routed through a closed vent system to a
control device, back into the process or to the fuel gas system, the
owner or operator is required to comply only with paragraphs (j)(1) and
(2) of this section for the pilot discharge vent and is not required to
comply with paragraph (j)(3) of this section for the pilot-operated
pressure relief device.
    (iii) If a balanced bellows pressure relief device is used and the
primary release valve is routed through a closed vent system to a
control device, back into the process or to the fuel gas system, the
owner or operator is required to comply only with paragraphs (j)(1) and
(2) of this section for the bonnet vent and is not required to comply
with paragraph (j)(3) of this section for the balanced bellows pressure
relief device.
    (iv) Both the closed vent system and control device (if applicable)
referenced in paragraphs (j)(4)(i) through (iii) of this section must
meet the requirements of Sec.  63.644. When complying with this
paragraph (j)(4), all references to ``Group 1 miscellaneous process
vent'' in Sec.  63.644 mean ``pressure relief device.''
    (v) If a pressure relief device complying with this paragraph
(j)(4) is routed to the fuel gas system, then on and after January 30,
2019, any flares receiving gas from that fuel gas system must be in
compliance with Sec.  63.670.
* * * * *

0
10. Section 63.655 is amended by:
0
a. Revising paragraphs (f)(1)(i)(A)(1) through (3), (f)(1)(i)(B)(3),
(f)(1)(i)(C)(2), (f)(1)(iii), (f)(2), (f)(4), (g)(2)(i)(B)(1) and
(g)(10) introductory text;
0
b. Redesignating paragraph (g)(10)(iii) as (g)(10)(iv);
0
c. Adding new paragraph (g)(10)(iii);
0
d. Revising paragraph (g)(13) introductory text and paragraph
(h)(2)(ii);
0
e. Removing and reserving paragraph (h)(5)(iii);
0
f. Revising paragraph (h)(8)
0
g. Revising paragraph (h)(9)(i) introductory text and paragraph
(h)(9)(ii) introductory text;
0
h. Adding paragraph (h)(10);
0
i. Revising paragraph (i)(3)(ii)(B);
0
j. Adding paragraphs (i)(3)(ii)(C) and (i)(5)(i) through (v);
0
k. Revising paragraphs (i)(7)(iii)(B) and (i)(11) introductory text;
0
l. Adding paragraph (i)(11)(iv);
0
m. Revising paragraph (i)(12) introductory text and paragraph
(i)(12)(iv); and
0
n. Adding paragraph (i)(12)(vi).
    The revisions and additions read as follows:

Sec.  63.655  Reporting and recordkeeping requirements.

* * * * *
    (f) * * *
    (1) * * *
    (i) * * *
    (A) * * *
    (1) For each Group 1 storage vessel complying with either Sec.
63.646 or Sec.  63.660 that is not included in an emissions average,
the method of compliance (i.e., internal floating roof, external
floating roof, or closed vent system and control device).
    (2) For storage vessels subject to the compliance schedule
specified in Sec.  63.640(h)(2) that are not complying with Sec.
63.646 or Sec.  63.660 as applicable, the anticipated compliance date.
    (3) For storage vessels subject to the compliance schedule
specified in Sec.  63.640(h)(2) that are complying with Sec.  63.646 or
Sec.  63.660, as applicable, and the Group 1 storage vessels described
in Sec.  63.640(l), the actual compliance date.
    (B) * * *
    (3) If the owner or operator elects to submit the results of a
performance test, identification of the storage vessel and control
device for which the performance test will be submitted, and
identification of the emission point(s) that share the control device
with the storage vessel and for which the performance test will be
conducted. If the performance test is submitted electronically through
the EPA's Compliance and Emissions Data Reporting Interface (CEDRI) in
accordance with Sec.  63.655(h)(9), the process unit(s) tested, the
pollutant(s) tested, and the date that such performance test was
conducted may be submitted in the Notification of Compliance Status in
lieu of the performance test results. The performance test results must
be submitted to CEDRI by the date the Notification of Compliance Status
is submitted.
    (C) * * *
    (2) If a performance test is conducted instead of a design
evaluation, results of the performance test demonstrating that the
control device achieves greater than or equal to the required control
efficiency. A performance test conducted prior to the compliance date
of this subpart can be used to comply with this requirement, provided
that the test was conducted using EPA methods and that the test
conditions are representative of current operating practices. If the
performance test is submitted electronically through the EPA's
Compliance and Emissions Data Reporting Interface in accordance with
Sec.  63.655(h)(9), the process unit(s) tested, the pollutant(s)
tested, and the date that such performance test was conducted may be
submitted in the Notification of Compliance Status in lieu of the
performance test results. The performance test results must be
submitted to CEDRI by the date the Notification of Compliance Status is
submitted.
* * * * *
    (iii) For miscellaneous process vents controlled by control devices
required to be tested under Sec.  63.645 and Sec.  63.116(c),
performance test results including the information in paragraphs
(f)(1)(iii)(A) and (B) of this section. Results of a performance test
conducted prior to the compliance date of this subpart can be used
provided that the test was conducted using the methods specified in
Sec.  63.645 and that the test conditions are representative of current
operating conditions. If the performance test is submitted
electronically through the EPA's Compliance and Emissions Data
Reporting Interface in accordance with Sec.  63.655(h)(9), the process
unit(s) tested, the pollutant(s) tested, and the date that such
performance test was conducted may be submitted in the Notification of
Compliance Status in lieu of the performance test results. The
performance test results must be submitted to CEDRI by the date the
Notification of Compliance Status is submitted.
* * * * *
    (2) If initial performance tests are required by Sec. Sec.  63.643
through 63.653, the Notification of Compliance Status report shall
include one complete test report for each test method used for a
particular source. On and after February 1, 2016, for data collected
using test methods supported by the EPA's Electronic Reporting Tool
(ERT) as listed on the EPA's ERT website (https://www.epa.gov/electronic-reporting-air-emissions/electronic-reporting-tool-ert) at
the time of the test, you must submit the results in accordance with
Sec.  63.655(h)(9) by the date that you submit the Notification of
Compliance Status, and you must include the process unit(s) tested, the
pollutant(s) tested, and the date that such performance test was
conducted in the Notification of Compliance Status. All other
performance test results must

be reported in the Notification of Compliance Status.
* * * * *
    (4) Results of any continuous monitoring system performance
evaluations shall be included in the Notification of Compliance Status
report, unless the results are required to be submitted electronically
by Sec.  63.655(h)(9). For performance evaluation results required to
be submitted through CEDRI, submit the results in accordance with Sec.
63.655(h)(9) by the date that you submit the Notification of Compliance
Status and include the process unit where the CMS is installed, the
parameter measured by the CMS, and the date that the performance
evaluation was conducted in the Notification of Compliance Status.
* * * * *
    (g) * * *
    (2) * * *
    (i) * * *
    (B) * * *
    (1) A failure is defined as any time in which the internal floating
roof has defects; or the primary seal has holes, tears, or other
openings in the seal or the seal fabric; or the secondary seal (if one
has been installed) has holes, tears, or other openings in the seal or
the seal fabric; or, for a storage vessel that is part of a new source,
the gaskets no longer close off the liquid surface from the atmosphere;
or, for a storage vessel that is part of a new source, the slotted
membrane has more than a 10 percent open area.
* * * * *
    (10) For pressure relief devices subject to the requirements Sec.
63.648(j), Periodic Reports must include the information specified in
paragraphs (g)(10)(i) through (iv) of this section.
* * * * *
    (iii) For pilot-operated pressure relief devices in organic HAP
service, report each pressure release to the atmosphere through the
pilot vent that equals or exceeds 72 pounds of VOC per day, including
duration of the pressure release through the pilot vent and estimate of
the mass quantity of each organic HAP released.
* * * * *
    (13) For maintenance vents subject to the requirements in Sec.
63.643(c), Periodic Reports must include the information specified in
paragraphs (g)(13)(i) through (iv) of this section for any release
exceeding the applicable limits in Sec.  63.643(c)(1). For the purposes
of this reporting requirement, owners or operators complying with Sec.
63.643(c)(1)(iv) must report each venting event for which the lower
explosive limit is 20 percent or greater; owners or operators complying
with Sec.  63.643(c)(1)(v) must report each venting event conducted
under those provisions and include an explanation for each event as to
why utilization of this alternative was required.
* * * * *
    (h) * * *
    (2) * * *
    (ii) In order to afford the Administrator the opportunity to have
an observer present, the owner or operator of a storage vessel equipped
with an external floating roof shall notify the Administrator of any
seal gap measurements. The notification shall be made in writing at
least 30 calendar days in advance of any gap measurements required by
Sec.  63.120(b)(1) or (2) or Sec.  63.1063(d)(3). The State or local
permitting authority can waive this notification requirement for all or
some storage vessels subject to the rule or can allow less than 30
calendar days' notice.
* * * * *
    (8) For fenceline monitoring systems subject to Sec.  63.658, each
owner or operator shall submit the following information to the EPA's
Compliance and Emissions Data Reporting Interface (CEDRI) on a
quarterly basis. (CEDRI can be accessed through the EPA's Central Data
Exchange (CDX) (https://cdx.epa.gov/). The first quarterly report must
be submitted once the owner or operator has obtained 12 months of data.
The first quarterly report must cover the period beginning on the
compliance date that is specified in Table 11 of this subpart and
ending on March 31, June 30, September 30 or December 31, whichever
date is the first date that occurs after the owner or operator has
obtained 12 months of data (i.e., the first quarterly report will
contain between 12 and 15 months of data). Each subsequent quarterly
report must cover one of the following reporting periods: Quarter 1
from January 1 through March 31; Quarter 2 from April 1 through June
30; Quarter 3 from July 1 through September 30; and Quarter 4 from
October 1 through December 31. Each quarterly report must be
electronically submitted no later than 45 calendar days following the
end of the reporting period.
    (i) Facility name and address.
    (ii) Year and reporting quarter (i.e., Quarter 1, Quarter 2,
Quarter 3, or Quarter 4).
    (iii) For the first reporting period and for any reporting period
in which a passive monitor is added or moved, for each passive monitor:
The latitude and longitude location coordinates; the sampler name; and
identification of the type of sampler (i.e., regular monitor, extra
monitor, duplicate, field blank, inactive). The owner or operator shall
determine the coordinates using an instrument with an accuracy of at
least 3 meters. Coordinates shall be in decimal degrees with at least
five decimal places.
    (iv) The beginning and ending dates for each sampling period.
    (v) Individual sample results for benzene reported in units of
[micro]g/m\3\ for each monitor for each sampling period that ends
during the reporting period. Results below the method detection limit
shall be flagged as below the detection limit and reported at the
method detection limit.
    (vi) Data flags that indicate each monitor that was skipped for the
sampling period, if the owner or operator uses an alternative sampling
frequency under Sec.  63.658(e)(3).
    (vii) Data flags for each outlier determined in accordance with
Section 9.2 of Method 325A of appendix A of this part. For each
outlier, the owner or operator must submit the individual sample result
of the outlier, as well as the evidence used to conclude that the
result is an outlier.
    (viii) The biweekly concentration difference ([Delta]c) for benzene
for each sampling period and the annual average [Delta]c for benzene
for each sampling period.
    (9) * * *
    (i) Unless otherwise specified by this subpart, within 60 days
after the date of completing each performance test as required by this
subpart, the owner or operator shall submit the results of the
performance tests following the procedure specified in either paragraph
(h)(9)(i)(A) or (B) of this section.
* * * * *
    (ii) Unless otherwise specified by this subpart, within 60 days
after the date of completing each CEMS performance evaluation as
required by this subpart, the owner or operator must submit the results
of the performance evaluation following the procedure specified in
either paragraph (h)(9)(ii)(A) or (B) of this section.
* * * * *
    (10)(i) If you are required to electronically submit a report
through the Compliance and Emissions Data Reporting Interface (CEDRI)
in the EPA's Central Data Exchange (CDX), and due to a planned or
actual outage of either the EPA's CEDRI or CDX systems within the
period of time beginning 5 business days prior to the date that the
submission is due, you will be or are precluded from accessing CEDRI or
CDX

and submitting a required report within the time prescribed, you may
assert a claim of EPA system outage for failure to timely comply with
the reporting requirement. You must submit notification to the
Administrator in writing as soon as possible following the date you
first knew, or through due diligence should have known, that the event
may cause or caused a delay in reporting. You must provide to the
Administrator a written description identifying the date(s) and time(s)
the CDX or CEDRI were unavailable when you attempted to access it in
the 5 business days prior to the submission deadline; a rationale for
attributing the delay in reporting beyond the regulatory deadline to
the EPA system outage; describe the measures taken or to be taken to
minimize the delay in reporting; and identify a date by which you
propose to report, or if you have already met the reporting requirement
at the time of the notification, the date you reported. In any
circumstance, the report must be submitted electronically as soon as
possible after the outage is resolved. The decision to accept the claim
of EPA system outage and allow an extension to the reporting deadline
is solely within the discretion of the Administrator.
    (ii) If you are required to electronically submit a report through
CEDRI in the EPA's CDX and a force majeure event is about to occur,
occurs, or has occurred or there are lingering effects from such an
event within the period of time beginning 5 business days prior to the
date the submission is due, the owner or operator may assert a claim of
force majeure for failure to timely comply with the reporting
requirement. For the purposes of this paragraph, a force majeure event
is defined as an event that will be or has been caused by circumstances
beyond the control of the affected facility, its contractors, or any
entity controlled by the affected facility that prevents you from
complying with the requirement to submit a report electronically within
the time period prescribed. Examples of such events are acts of nature
(e.g., hurricanes, earthquakes, or floods), acts of war or terrorism,
or equipment failure or safety hazard beyond the control of the
affected facility (e.g., large scale power outage). If you intend to
assert a claim of force majeure, you must submit notification to the
Administrator in writing as soon as possible following the date you
first knew, or through due diligence should have known, that the event
may cause or caused a delay in reporting. You must provide to the
Administrator a written description of the force majeure event and a
rationale for attributing the delay in reporting beyond the regulatory
deadline to the force majeure event; describe the measures taken or to
be taken to minimize the delay in reporting; and identify a date by
which you propose to report, or if you have already met the reporting
requirement at the time of the notification, the date you reported. In
any circumstance, the reporting must occur as soon as possible after
the force majeure event occurs. The decision to accept the claim of
force majeure and allow an extension to the reporting deadline is
solely within the discretion of the Administrator.
    (i) * * *
    (3) * * *
    (ii) * * *
    (B) 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; or
    (C) All values that meet the set criteria for variation from
previously recorded values using an automated data compression
recording system.
    (1) The automated data compression recording system shall be
designed to:
    (i) Measure the operating parameter value at least once every hour.
    (ii) Record at least 24 values each day during periods of
operation.
    (iii) Record the date and time when monitors are turned off or on.
    (iv) Recognize unchanging data that may indicate the monitor is not
functioning properly, alert the operator, and record the incident.
    (v) Compute daily average values of the monitored operating
parameter based on recorded data.
    (2) You must maintain a record of the description of the monitoring
system and data compression recording system including the criteria
used to determine which monitored values are recorded and retained, the
method for calculating daily averages, and a demonstration that the
system meets all criteria of paragraph (i)(3)(ii)(C)(1) of this
section.
* * * * *
    (5) * * *
    (i) Identification of all petroleum refinery process unit heat
exchangers at the facility and the average annual HAP concentration of
process fluid or intervening cooling fluid estimated when developing
the Notification of Compliance Status report.
    (ii) Identification of all heat exchange systems subject to the
monitoring requirements in Sec.  63.654 and identification of all heat
exchange systems that are exempt from the monitoring requirements
according to the provisions in Sec.  63.654(b). For each heat exchange
system that is subject to the monitoring requirements in Sec.  63.654,
this must include identification of all heat exchangers within each
heat exchange system, and, for closed-loop recirculation systems, the
cooling tower included in each heat exchange system.
    (iii) Results of the following monitoring data for each required
monitoring event:
    (A) Date/time of event.
    (B) Barometric pressure.
    (C) El Paso air stripping apparatus water flow milliliter/minute
(ml/min) and air flow, ml/min, and air temperature, [deg]Celsius.
    (D) FID reading (ppmv).
    (E) Length of sampling period.
    (F) Sample volume.
    (G) Calibration information identified in Section 5.4.2 of the
``Air Stripping Method (Modified El Paso Method) for Determination of
Volatile Organic Compound Emissions from Water Sources'' Revision
Number One, dated January 2003, Sampling Procedures Manual, Appendix P:
Cooling Tower Monitoring, prepared by Texas Commission on Environmental
Quality, January 31, 2003 (incorporated by reference--see Sec.  63.14).
    (iv) The date when a leak was identified, the date the source of
the leak was identified, and the date when the heat exchanger was
repaired or taken out of service.
    (v) If a repair is delayed, the reason for the delay, the schedule
for completing the repair, the heat exchange exit line flow or cooling
tower return line average flow rate at the monitoring location (in
gallons/minute), and the estimate of potential strippable hydrocarbon
emissions for each required monitoring interval during the delay of
repair.
* * * * *
    (7) * * *
    (iii) * * *
    (B) The pressure or temperature of the coke drum vessel, as
applicable, for the 5-minute period prior to the pre-vent draining.
* * * * *
    (11) For each pressure relief device subject to the pressure
release management work practice standards in Sec.  63.648(j)(3), the
owner or operator shall keep the records specified in paragraphs
(i)(11)(i) through (iii) of this section. For each pilot-operated
pressure relief device subject to the

requirements at Sec.  63.648(j)(4)(ii) or (iii), the owner or operator
shall keep the records specified in paragraph (i)(11)(iv) of this
section.
* * * * *
    (iv) For pilot-operated pressure relief devices, general or
release-specific records for estimating the quantity of VOC released
from the pilot vent during a release event, and records of calculations
used to determine the quantity of specific HAP released for any event
or series of events in which 72 or more pounds of VOC are released in a
day.
    (12) For each maintenance vent opening subject to the requirements
in Sec.  63.643(c), the owner or operator shall keep the applicable
records specified in paragraphs (i)(12)(i) through (vi) of this
section.
* * * * *
    (iv) If complying with the requirements of Sec.  63.643(c)(1)(iii),
records used to estimate the total quantity of VOC in the equipment and
the type and size limits of equipment that contain less than 72 pounds
of VOC at the time of maintenance vent opening. For each maintenance
vent opening for which the deinventory procedures specified in
paragraph (i)(12)(i) of this section are not followed or for which the
equipment opened exceeds the type and size limits established in the
records specified in this paragraph, identification of the maintenance
vent, the process units or equipment associated with the maintenance
vent, the date of maintenance vent opening, and records used to
estimate the total quantity of VOC in the equipment at the time the
maintenance vent was opened to the atmosphere.
* * * * *
    (vi) If complying with the requirements of Sec.  63.643(c)(1)(v),
identification of the maintenance vent, the process units or equipment
associated with the maintenance vent, records documenting actions taken
to comply with other applicable alternatives and why utilization of
this alternative was required, the date of maintenance vent opening,
the equipment pressure and lower explosive limit of the vapors in the
equipment at the time of discharge, an indication of whether active
purging was performed and the pressure of the equipment during the
installation or removal of the blind if active purging was used, the
duration the maintenance vent was open during the blind installation or
removal process, and records used to estimate the total quantity of VOC
in the equipment at the time the maintenance vent was opened to the
atmosphere for each applicable maintenance vent opening.
* * * * *

0
11. Section 63.657 is amended by revising paragraphs (a)(1)(i) and
(ii), (a)(2)(i) and (ii), (b)(5), and (e) to read as follows:

Sec.  63.657  Delayed coking unit decoking operation standards.

    (a) * * *
    (1) * * *
    (i) An average vessel pressure of 2 psig or less determined on a
rolling 60-event average; or
    (ii) An average vessel temperature of 220 degrees Fahrenheit or
less determined on a rolling 60-event average.
    (2) * * *
    (i) A vessel pressure of 2.0 psig or less for each decoking event;
or
    (ii) A vessel temperature of 218 degrees Fahrenheit or less for
each decoking event.
* * * * *
    (b) * * *
    (5) The output of the pressure monitoring system must be reviewed
each day the unit is operated to ensure that the pressure readings
fluctuate as expected between operating and cooling/decoking cycles to
verify the pressure taps are not plugged. Plugged pressure taps must be
unplugged or otherwise repaired prior to the next operating cycle.
* * * * *
    (e) The owner or operator of a delayed coking unit using the
``water overflow'' method of coke cooling prior to complying with the
applicable requirements in paragraph (a) of this section must meet the
requirements in either paragraph (e)(1) or (e)(2) of this section or,
if applicable, the requirements in paragraph (e)(3) of this section.
The owner or operator of a delayed coking unit using the ``water
overflow'' method of coke cooling subject to this paragraph shall
determine the coke drum vessel temperature as specified in paragraphs
(c) and (d) of this section and shall not otherwise drain or vent the
coke drum until the coke drum vessel temperature is at or below the
applicable limits in paragraph (a)(1)(ii) or (a)(2)(ii) of this
section.
    (1) The overflow water must be directed to a separator or similar
disengaging device that is operated in a manner to prevent entrainment
of gases from the coke drum vessel to the overflow water storage tank.
Gases from the separator or disengaging device must be routed to a
closed blowdown system or otherwise controlled following the
requirements for a Group 1 miscellaneous process vent. The liquid from
the separator or disengaging device must be hardpiped to the overflow
water storage tank or similarly transported to prevent exposure of the
overflow water to the atmosphere. The overflow water storage tank may
be an open or uncontrolled fixed-roof tank provided that a submerged
fill pipe (pipe outlet below existing liquid level in the tank) is used
to transfer overflow water to the tank.
    (2) The overflow water must be directed to a storage vessel meeting
the requirements for storage vessels in subpart SS of this part.
    (3) Prior to November 26, 2020, if the equipment needed to comply
with paragraphs (e)(1) or (2) of this section are not installed and
operational, you must comply with all of the requirements in paragraphs
(e)(3)(i) through (iv) of this section.
    (i) The temperature of the coke drum, measured according to
paragraph (c) of this section, must be 250 degrees Fahrenheit or less
prior to initiation of water overflow and at all times during the water
overflow.
    (ii) The overflow water must be hardpiped to the overflow water
storage tank or similarly transported to prevent exposure of the
overflow water to the atmosphere.
    (iii) The overflow water storage tank may be an open or
uncontrolled fixed-roof tank provided that all of the following
requirements are met.
    (A) A submerged fill pipe (pipe outlet below existing liquid level
in the tank) is used to transfer overflow water to the tank.
    (B) The liquid level in the storage tank is at least 6 feet above
the submerged fill pipe outlet at all times during water overflow.
    (C) The temperature of the contents in the storage tank remain
below 150 degrees Fahrenheit at all times during water overflow.
* * * * *

0
12. Section 63.658 is amended by revising paragraphs (c)(1), (2) and
(3), (d)(1) introductory text and (d)(2), (e) introductory text,
(e)(3)(iv), (f)(1)(i) introductory text, and (f)(1)(i)(B) to read as
follows:

Sec.  63.658  Fenceline monitoring provisions.

* * * * *
    (c) * * *
    (1) As it pertains to this subpart, known sources of VOCs, as used
in Section <IP_ADDRESS> in Method 325A of appendix A of this part for siting
passive monitors, means a wastewater

treatment unit, process unit, or any emission source requiring control
according to the requirements of this subpart, including marine vessel
loading operations. For marine vessel loading operations, one passive
monitor should be sited on the shoreline adjacent to the dock. For this
subpart, an additional monitor is not required if the only emission
sources within 50 meters of the monitoring boundary are equipment leak
sources satisfying all of the conditions in paragraphs (c)(1)(i)
through (iv) of this section.
    (i) The equipment leak sources in organic HAP service within 50
meters of the monitoring boundary are limited to valves, pumps,
connectors, sampling connections, and open-ended lines. If compressors,
pressure relief devices, or agitators in organic HAP service are
present within 50 meters of the monitoring boundary, the additional
passive monitoring location specified in Section <IP_ADDRESS> in Method 325A
of appendix A of this part must be used.
    (ii) All equipment leak sources in gas or light liquid service (and
in organic HAP service), including valves, pumps, connectors, sampling
connections and open-ended lines, must be monitored using EPA Method 21
of 40 CFR part 60, appendix A-7 no less frequently than quarterly with
no provisions for skip period monitoring, or according to the
provisions of Sec.  63.11(c) Alternative Work practice for monitoring
equipment for leaks. For the purpose of this provision, a leak is
detected if the instrument reading equals or exceeds the applicable
limits in paragraphs (c)(1)(ii)(A) through (E) of this section:
    (A) For valves, pumps or connectors at an existing source, an
instrument reading of 10,000 ppmv.
    (B) For valves or connectors at a new source, an instrument reading
of 500 ppmv.
    (C) For pumps at a new source, an instrument reading of 2,000 ppmv.
    (D) For sampling connections or open-ended lines, an instrument
reading of 500 ppmv above background.
    (E) For equipment monitored according to the Alternative Work
practice for monitoring equipment for leaks, the leak definitions
contained in Sec.  63.11 (c)(6)(i) through (iii).
    (iii) All equipment leak sources in organic HAP service, including
sources in gas, light liquid and heavy liquid service, must be
inspected using visual, audible, olfactory, or any other detection
method at least monthly. A leak is detected if the inspection
identifies a potential leak to the atmosphere or if there are
indications of liquids dripping.
    (iv) All leaks identified by the monitoring or inspections
specified in paragraphs (c)(1)(ii) or (iii) of this section must be
repaired no later than 15 calendar days after it is detected with no
provisions for delay of repair. If a repair is not completed within 15
calendar days, the additional passive monitor specified in Section
<IP_ADDRESS> in Method 325A of appendix A of this part must be used.
    (2) The owner or operator may collect one or more background
samples if the owner or operator believes that an offsite upwind source
or an onsite source excluded under Sec.  63.640(g) may influence the
sampler measurements. If the owner or operator elects to collect one or
more background samples, the owner or operator must develop and submit
a site-specific monitoring plan for approval according to the
requirements in paragraph (i) of this section. Upon approval of the
site-specific monitoring plan, the background sampler(s) should be
operated co-currently with the routine samplers.
    (3) If there are 19 or fewer monitoring locations, the owner or
operator shall collect at least one co-located duplicate sample per
sampling period and at least one field blank per sampling period. If
there are 20 or more monitoring locations, the owner or operator shall
collect at least two co-located duplicate samples per sampling period
and at least one field blank per sampling period. The co-located
duplicates may be collected at any of the perimeter sampling locations.
* * * * *
    (d) * * *
    (1) If a near-field source correction is used as provided in
paragraph (i)(2) of this section or if an alternative test method is
used that provides time-resolved measurements, the owner or operator
shall:
* * * * *
    (2) For cases other than those specified in paragraph (d)(1) of
this section, the owner or operator shall collect and record sampling
period average temperature and barometric pressure using either an on-
site meteorological station in accordance with Section 8.3.1 through
8.3.3 of Method 325A of appendix A of this part or, alternatively,
using data from a United States Weather Service (USWS) meteorological
station provided the USWS meteorological station is within 40
kilometers (25 miles) of the refinery.
* * * * *
    (e) The owner or operator shall use a sampling period and sampling
frequency as specified in paragraphs (e)(1) through (3) of this
section.
* * * * *
    (3) * * *
    (iv) If every sample at a monitoring site that is monitored at the
frequency specified in paragraph (e)(3)(iii) of this section is at or
below 0.9 [micro]g/m\3\ for 2 years (i.e., 4 consecutive semiannual
samples), only one sample per year is required for that monitoring
site. For yearly sampling, samples shall occur at least 10 months but
no more than 14 months apart.
* * * * *
    (f) * * *
    (1) * * *
    (i) Except when near-field source correction is used as provided in
paragraph (i) of this section, the owner or operator shall determine
the highest and lowest sample results for benzene concentrations from
the sample pool and calculate [Delta]c as the difference in these
concentrations. Co-located samples must be averaged together for the
purposes of determining the benzene concentration for that sampling
location, and, if applicable, for determining [Delta]c. The owner or
operator shall adhere to the following procedures when one or more
samples for the sampling period are below the method detection limit
for benzene:
* * * * *
    (B) If all sample results are below the method detection limit, the
owner or operator shall use the method detection limit as the highest
sample result and zero as the lowest sample result when calculating
[Delta]c.
* * * * *

0
13. Section 63.660 is amended by revising the introductory text,
paragraph (b) introductory text, paragraphs (b)(1) and (e), and
paragraph (i)(2) introductory text, and adding paragraph (i)(2)(iii) to
read as follows:

Sec.  63.660  Storage vessel provisions.

    On and after the applicable compliance date for a Group 1 storage
vessel located at a new or existing source as specified in Sec.
63.640(h), the owner or operator of a Group 1 storage vessel storing
liquid with a maximum true vapor pressure less than 76.6 kilopascals
(11.1 pounds per square inch) that is part of a new or existing source
shall comply with either the requirements in subpart WW or SS of this
part according to the requirements in paragraphs (a) through (i) of
this section and the owner or operator of a Group 1 storage vessel
storing liquid with a maximum true vapor pressure greater than or equal
to 76.6 kilopascals (11.1 pounds per square inch) that is

part of a new or existing source shall comply with the requirements in
subpart SS of this part according to the requirements in paragraphs (a)
through (i) of this section.
* * * * *
    (b) A floating roof storage vessel complying with the requirements
of subpart WW of this part may comply with the control option specified
in paragraph (b)(1) of this section and, if equipped with a ladder
having at least one slotted leg, shall comply with one of the control
options as described in paragraph (b)(2) of this section. If the
floating roof storage vessel does not meet the requirements of Sec.
63.1063(a)(2)(i) through (a)(2)(viii) as of June 30, 2014, these
requirements do not apply until the next time the vessel is completely
emptied and degassed, or January 30, 2026, whichever occurs first.
    (1) In addition to the options presented in Sec. Sec.
63.1063(a)(2)(viii)(A) and (B) and 63.1064, a floating roof storage
vessel may comply with Sec.  63.1063(a)(2)(viii) using a flexible
enclosure device and either a gasketed or welded cap on the top of the
guidepole.
* * * * *
    (e) For storage vessels previously subject to requirements in Sec.
63.646, initial inspection requirements in Sec.  63.1063(c)(1) and
(c)(2)(i) (i.e., those related to the initial filling of the storage
vessel) or in Sec.  63.983(b)(1)(i)(A), as applicable, are not
required. Failure to perform other inspections and monitoring required
by this section shall constitute a violation of the applicable standard
of this subpart.
* * * * *
    (i) * * *
    (2) If a closed vent system contains a bypass line, the owner or
operator shall comply with the provisions of either Sec.
63.983(a)(3)(i) or (ii) or paragraph (iii) of this section for each
closed vent system that contains bypass lines that could divert a vent
stream either directly to the atmosphere or to a control device that
does not comply with the requirements in subpart SS of this part.
Except as provided in paragraphs (i)(2)(i) and (ii) of this section,
use of the bypass at any time to divert a Group 1 storage vessel either
directly to the atmosphere or to a control device that does not comply
with the requirements in subpart SS of this part is an emissions
standards violation. Equipment such as low leg drains and equipment
subject to Sec.  63.648 are not subject to this paragraph (i)(2).
* * * * *
    (iii) Use a cap, blind flange, plug, or a second valve for an open-
ended valves or line following the requirements specified in Sec.
60.482-6(a)(2), (b) and (c).
* * * * *

0
14. Section 63.670 is amended by:
0
a. Revising paragraph (f);
0
b. Revising paragraphs (h) introductory text, (h)(1), and (i)
introductory text;
0
c. Adding paragraphs (i)(5) and (6);
0
d. Revising paragraph (j)(6) introductory text;
0
e. Revising the definition of the Qcum term in the equation
in paragraph (k)(3);
0
f. Revising paragraph (m)(2) introductory text;
0
g. Revising the definitions of the QNG2, QNG1,
and NHVNG terms in the equation in paragraph (m)(2);
0
h. Revising paragraph (n)(2) introductory text;
0
i. Revising the definitions of the QNG2, QNG1,
and NHVNG terms in the equation in paragraph (n)(2); and
0
j. Revising paragraphs (o) introductory text, (o)(1)(ii)(B),
(o)(1)(iii)(B), and (o)(3)(i).
    The revisions and additions read as follows:

Sec.  63.670  Requirements for flare control devices.

* * * * *
    (f) Dilution operating limits for flares with perimeter assist air.
Except as provided in paragraph (f)(1) of this section, for each flare
actively receiving perimeter assist air, the owner or operator shall
operate the flare to maintain the net heating value dilution parameter
(NHVdil) at or above 22 British thermal units per square foot (Btu/
ft\2\) determined on a 15-minute block period basis when regulated
material is being routed to the flare for at least 15-minutes. The
owner or operator shall monitor and calculate NHVdil as
specified in paragraph (n) of this section.
    (1) If the only assist air provided to a specific flare is
perimeter assist air intentionally entrained in lower and/or upper
steam at the flare tip and the effective diameter is 9 inches or
greater, the owner or operator shall comply only with the
NHVcz operating limit in paragraph (e) of this section for
that flare.
    (2) [Reserved]
* * * * *
    (h) Visible emissions monitoring. The owner or operator shall
conduct an initial visible emissions demonstration using an observation
period of 2 hours using Method 22 at 40 CFR part 60, appendix A-7. The
initial visible emissions demonstration should be conducted the first
time regulated materials are routed to the flare. Subsequent visible
emissions observations must be conducted using either the methods in
paragraph (h)(1) of this section or, alternatively, the methods in
paragraph (h)(2) of this section. The owner or operator must record and
report any instances where visible emissions are observed for more than
5 minutes during any 2 consecutive hours as specified in Sec.
63.655(g)(11)(ii).
    (1) At least once per day for each day regulated material is routed
to the flare, conduct visible emissions observations using an
observation period of 5 minutes using Method 22 at 40 CFR part 60,
appendix A-7. If at any time the owner or operator sees visible
emissions while regulated material is routed to the flare, even if the
minimum required daily visible emission monitoring has already been
performed, the owner or operator shall immediately begin an observation
period of 5 minutes using Method 22 at 40 CFR part 60, appendix A-7. If
visible emissions are observed for more than one continuous minute
during any 5-minute observation period, the observation period using
Method 22 at 40 CFR part 60, appendix A-7 must be extended to 2 hours
or until 5-minutes of visible emissions are observed. Daily 5-minute
Method 22 observations are not required to be conducted for days the
flare does not receive any regulated material.
* * * * *
    (i) Flare vent gas, steam assist and air assist flow rate
monitoring. The owner or operator shall install, operate, calibrate,
and maintain a monitoring system capable of continuously measuring,
calculating, and recording the volumetric flow rate in the flare header
or headers that feed the flare as well as any flare supplemental gas
used. Different flow monitoring methods may be used to measure
different gaseous streams that make up the flare vent gas provided that
the flow rates of all gas streams that contribute to the flare vent gas
are determined. If assist air or assist steam is used, the owner or
operator shall install, operate, calibrate, and maintain a monitoring
system capable of continuously measuring, calculating, and recording
the volumetric flow rate of assist air and/or assist steam used with
the flare. If pre-mix assist air and perimeter assist are both used,
the owner or operator shall install, operate, calibrate, and maintain a
monitoring system capable of separately measuring, calculating, and
recording the volumetric flow rate of premix assist air and perimeter
assist air used with the

flare. Flow monitoring system requirements and acceptable alternatives
are provided in paragraphs (i)(1) through (6) of this section.
* * * * *
    (5) Continuously monitoring fan speed or power and using fan curves
is an acceptable method for continuously monitoring assist air flow
rates.
    (6) For perimeter assist air intentionally entrained in lower and/
or upper steam, the monitored steam flow rate and the maximum design
air-to-steam volumetric flow ratio of the entrainment system may be
used to determine the assist air flow rate.
    (j) * * *
    (6) Direct compositional or net heating value monitoring is not
required for gas streams that have been demonstrated to have consistent
composition (or a fixed minimum net heating value) according to the
methods in paragraphs (j)(6)(i) through (iii) of this section.
* * * * *
    (k) * * *
    (3) * * *
* * * * *
Qcum = Cumulative volumetric flow over 15-minute block
average period, standard cubic feet.

* * * * *
    (m) * * *
    (2) Owners or operators of flares that use the feed-forward
calculation methodology in paragraph (l)(5)(i) of this section and that
monitor gas composition or net heating value in a location
representative of the cumulative vent gas stream and that directly
monitor flare supplemental gas flow additions to the flare must
determine the 15-minute block average NHVcz using the
following equation.
* * * * *
QNG2 = Cumulative volumetric flow of flare supplemental
gas during the 15-minute block period, scf.
QNG1 = Cumulative volumetric flow of flare supplemental
gas during the previous 15-minute block period, scf. For the first
15-minute block period of an event, use the volumetric flow value
for the current 15-minute block period, i.e., QNG1 =
QNG2.
NHVNG = Net heating value of flare supplemental gas for
the 15-minute block period determined according to the requirements
in paragraph (j)(5) of this section, Btu/scf.

* * * * *
    (n) * * *
    (2) Owners or operators of flares that use the feed-forward
calculation methodology in paragraph (l)(5)(i) of this section and that
monitor gas composition or net heating value in a location
representative of the cumulative vent gas stream and that directly
monitor flare supplemental gas flow additions to the flare must
determine the 15-minute block average NHVdil using the
following equation only during periods when perimeter assist air is
used. For 15-minute block periods when there is no cumulative
volumetric flow of perimeter assist air, the 15-minute block average
NHVdil parameter does not need to be calculated.
* * * * *
QNG2 = Cumulative volumetric flow of flare supplemental
gas during the 15-minute block period, scf.
QNG1 = Cumulative volumetric flow of flare supplemental
gas during the previous 15-minute block period, scf. For the first
15-minute block period of an event, use the volumetric flow value
for the current 15-minute block period, i.e., QNG1 =
QNG2.
NHVNG = Net heating value of flare supplemental gas for
the 15-minute block period determined according to the requirements
in paragraph (j)(5) of this section, Btu/scf.

* * * * *
    (o) Emergency flaring provisions. The owner or operator of a flare
that has the potential to operate above its smokeless capacity under
any circumstance shall comply with the provisions in paragraphs (o)(1)
through (7) of this section.
    (1) * * *
    (ii) * * *
    (B) Implementation of prevention measures listed for pressure
relief devices in Sec.  63.648(j)(3)(ii)(A) through (E) for each
pressure relief device that can discharge to the flare.
* * * * *
    (iii) * * *
    (B) The smokeless capacity of the flare based on a 15-minute block
average and design conditions. Note: A single value must be provided
for the smokeless capacity of the flare.
* * * * *
    (3) * * *
    (i) The vent gas flow rate exceeds the smokeless capacity of the
flare based on a 15-minute block average and visible emissions are
present from the flare for more than 5 minutes during any 2 consecutive
hours during the release event.
* * * * *

0
15. Table 6 to Subpart CC is amended by revising the entries
``63.6(f)(3)'', ``63.6(h)(8)'', 63.7(a)(2)'', ``63.7(f)'',
``63.7(h)(3)'', and ``63.8(e)'' to read as follows:

                            Table 6--General Provisions Applicability to Subpart CC a
----------------------------------------------------------------------------------------------------------------
           Reference                Applies  to subpart CC                          Comment
----------------------------------------------------------------------------------------------------------------

                                                  * * * * * * *
63.6(f)(3)....................  Yes..........................  Except the cross-references to Sec.   63.6(f)(1)
                                                                and (e)(1)(i) are changed to Sec.   63.642(n)
                                                                and performance test results may be written or
                                                                electronic.

                                                  * * * * * * *
63.6(h)(8)....................  Yes..........................  Except performance test results may be written or
                                                                electronic.

                                                  * * * * * * *
63.7(a)(2)....................  Yes..........................  Except test results must be submitted in the
                                                                Notification of Compliance Status report due 150
                                                                days after compliance date, as specified in Sec.
                                                                  63.655(f), unless they are required to be
                                                                submitted electronically in accordance with Sec.
                                                                  63.655(h)(9). Test results required to be
                                                                submitted electronically must be submitted by
                                                                the date the Notification of Compliance Status
                                                                report is submitted.

                                                  * * * * * * *
63.7(f).......................  Yes..........................  Except that additional notification or approval
                                                                is not required for alternatives directly
                                                                specified in Subpart CC.

                                                  * * * * * * *
63.7(h)(3)....................  Yes..........................  Yes, except site-specific test plans shall not be
                                                                required, and where Sec.   63.7(h)(3)(i)
                                                                specifies waiver submittal date, the date shall
                                                                be 90 days prior to the Notification of
                                                                Compliance Status report in Sec.   63.655(f).

                                                  * * * * * * *
63.8(e).......................  Yes..........................  Except that results are to be submitted
                                                                electronically if required by Sec.
                                                                63.655(h)(9).

                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------

0
16. Table 11 to subpart CC is amended by revising items (2)(iv),
(3)(iv) and (4)(v) to read as follows:

                                   Table 11--Compliance Dates and Requirements
----------------------------------------------------------------------------------------------------------------
                                         Then the owner or         And the owner or
If the construction/ reconstruction    operator must  comply     operator must achieve   Except as provided in .
           date is . . .                    with . . .             compliance . . .                . .
----------------------------------------------------------------------------------------------------------------

                                                  * * * * * * *
(2) * * *..........................  (iv) Requirements for     On or before December     Sec.  Sec.   63.640(k),
                                      existing sources in       26, 2018.                 (l) and (m) and
                                      Sec.   63.643(c).                                   63.643(d).

                                                  * * * * * * *
(3) * * *..........................  (iv) Requirements for     On or before December     Sec.  Sec.   63.640(k),
                                      existing sources in       26, 2018.                 (l) and (m) and
                                      Sec.   63.643(c).                                   63.643(d).

                                                  * * * * * * *
(4) * * *..........................  (v) Requirements for      On or before December     Sec.  Sec.   63.640(k),
                                      existing sources in       26, 2018.                 (l) and (m) and
                                      Sec.   63.643(c).                                   63.643(d).

                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------

0
17. Table 13 to Subpart CC is amended by revising the entry ``Hydrogen
analyzer'' to read as follows:

                         Table 13--Calibration and Quality Control Requirements for CPMS
----------------------------------------------------------------------------------------------------------------
                                               Minimum accuracy
               Parameter                         requirements                  Calibration requirements
----------------------------------------------------------------------------------------------------------------

                                                  * * * * * * *
Hydrogen analyzer......................  2 percent over   Specify calibration requirements in your
                                          the concentration measured   site specific CPMS monitoring plan.
                                          or 0.1 volume percent,       Calibration requirements should follow
                                          whichever is greater.        manufacturer's recommendations at a
                                                                       minimum.
                                                                      Where feasible, select the sampling
                                                                       location at least two equivalent duct
                                                                       diameters from the nearest control
                                                                       device, point of pollutant generation,
                                                                       air in-leakages, or other point at which
                                                                       a change in the pollutant concentration
                                                                       occurs.
----------------------------------------------------------------------------------------------------------------

Subpart UUU--National Emission Standards for Hazardous Air
Pollutants for Petroleum Refineries: Catalytic Cracking Units,
Catalytic Reforming Units, and Sulfur Recovery Units

0
18. Section 63.1564 is amended by revising the introductory text of
paragraphs (b)(4)(iii), (c)(3), and (c)(4) and revising paragraph
(c)(5)(iii) to read as follows:

Sec.  63.1564  What are my requirements for metal HAP emissions from
catalytic cracking units?

* * * * *
    (b) * * *
    (4) * * *
    (iii) If you elect Option 3 in paragraph (a)(1)(v) of this section,
the Ni lb/hr emission limit, compute your Ni emission rate using
Equation 5 of this section and your site-specific Ni operating limit
(if you use a continuous opacity monitoring system) using Equations 6
and 7 of this section as follows:
* * * * *
    (c) * * *
    (3) If you use a continuous opacity monitoring system and elect to
comply with Option 3 in paragraph (a)(1)(v) of this section, determine
continuous compliance with your site-specific Ni

operating limit by using Equation 11 of this section as follows:
* * * * *
    (4) If you use a continuous opacity monitoring system and elect to
comply with Option 4 in paragraph (a)(1)(vi) of this section, determine
continuous compliance with your site-specific Ni operating limit by
using Equation 12 of this section as follows:
* * * * *
    (5) * * *
    (iii) Calculating the inlet velocity to the primary internal
cyclones in feet per second (ft/sec) by dividing the average volumetric
flow rate (acfm) by the cumulative cross-sectional area of the primary
internal cyclone inlets (ft\2\) and by 60 seconds/minute (for unit
conversion).
* * * * *

0
19. Section 63.1565 is amended by revising paragraph (a)(5)(ii) to read
as follows:

Sec.  63.1565  What are my requirements for organic HAP emissions from
catalytic cracking units?

    (a) * * *
    (5) * * *
    (ii) You can elect to maintain the oxygen (O2)
concentration in the exhaust gas from your catalyst regenerator at or
above 1 volume percent (dry basis) or 1 volume percent (wet basis with
no moisture correction).
* * * * *

0
20. Section 63.1569 is amended by revising paragraph (c)(2) to read as
follows:

Sec.  63.1569  What are my requirements for HAP emissions from bypass
lines?

* * * * *
    (c) * * *
    (2) Demonstrate continuous compliance with the work practice
standard in paragraph (a)(3) of this section by complying with the
procedures in your operation, maintenance, and monitoring plan.

0
21. Section 63.1571 is amended by revising the introductory text of
paragraphs (a), (a)(5) and (a)(6), and by revising the introductory
text of paragraphs (d)(1) and (d)(2) to read as follows:

Sec.  63.1571  How and when do I conduct a performance test or other
initial compliance demonstration?

    (a) When must I conduct a performance test? You must conduct
initial performance tests and report the results by no later than 150
days after the compliance date specified for your source in Sec.
63.1563 and according to the provisions in Sec.  63.7(a)(2) and Sec.
63.1574(a)(3). If you are required to do a performance evaluation or
test for a semi-regenerative catalytic reforming unit catalyst
regenerator vent, you may do them at the first regeneration cycle after
your compliance date and report the results in a followup Notification
of Compliance Status report due no later than 150 days after the test.
You must conduct additional performance tests as specified in
paragraphs (a)(5) and (6) of this section and report the results of
these performance tests according to the provisions in Sec.
63.1575(f).
* * * * *
    (5) Periodic performance testing for PM or Ni. Except as provided
in paragraphs (a)(5)(i) and (ii) of this section, conduct a periodic
performance test for PM or Ni for each catalytic cracking unit at least
once every 5 years according to the requirements in Table 4 of this
subpart. You must conduct the first periodic performance test no later
than August 1, 2017 or within 150 days of startup of a new unit.
* * * * *
    (6) One-time performance testing for Hydrogen Cyanide (HCN).
Conduct a performance test for HCN from each catalytic cracking unit no
later than August 1, 2017 or within 150 days of startup of a new unit
according to the applicable requirements in paragraphs (a)(6)(i) and
(ii) of this section.
* * * * *
    (d) * * *
    (1) If you must meet the HAP metal emission limitations in Sec.
63.1564, you elect the option in paragraph (a)(1)(v) in Sec.  63.1564
(Ni lb/hr), and you use continuous parameter monitoring systems, you
must establish an operating limit for the equilibrium catalyst Ni
concentration based on the laboratory analysis of the equilibrium
catalyst Ni concentration from the initial performance test. Section
63.1564(b)(2) allows you to adjust the laboratory measurements of the
equilibrium catalyst Ni concentration to the maximum level. You must
make this adjustment using Equation 1 of this section as follows:
* * * * *
    (2) If you must meet the HAP metal emission limitations in Sec.
63.1564, you elect the option in paragraph (a)(1)(vi) in Sec.  63.1564
(Ni per coke burn-off), and you use continuous parameter monitoring
systems, you must establish an operating limit for the equilibrium
catalyst Ni concentration based on the laboratory analysis of the
equilibrium catalyst Ni concentration from the initial performance
test. Section 63.1564(b)(2) allows you to adjust the laboratory
measurements of the equilibrium catalyst Ni concentration to the
maximum level. You must make this adjustment using Equation 2 of this
section as follows:
* * * * *

0
22. Section 63.1572 is amended by revising paragraphs (c)(1) and (d)(1)
to read as follows:

Sec.  63.1572  What are my monitoring installation, operation, and
maintenance requirements?

* * * * *
    (c) * * *
    (1) You must install, operate, and maintain each continuous
parameter monitoring system according to the requirements in Table 41
of this subpart. You must also meet the equipment specifications in
Table 41 of this subpart if pH strips or colormetric tube sampling
systems are used. You must meet the requirements in Table 41 of this
subpart for BLD systems. Alternatively, before August 1, 2017, you may
install, operate, and maintain each continuous parameter monitoring
system in a manner consistent with the manufacturer's specifications or
other written procedures that provide adequate assurance that the
equipment will monitor accurately.
* * * * *
    (d) * * *
    (1) Except for monitoring malfunctions, associated repairs, and
required quality assurance or control activities (including as
applicable, calibration checks and required zero and span adjustments),
you must conduct all monitoring in continuous operation (or collect
data at all required intervals) at all times the affected source is
operating.
* * * * *

0
23. Section 63.1573 is amended by revising paragraph (a)(1)
introductory text to read as follows:

Sec.  63.1573  What are my monitoring alternatives?

    (a) * * * (1) You may use this alternative to a continuous
parameter monitoring system for the catalytic regenerator exhaust gas
flow rate for your catalytic cracking unit if the unit does not
introduce any other gas streams into the catalyst regeneration vent
(i.e., complete combustion units with no additional combustion
devices). You may also use this alternative to a continuous parameter
monitoring system for the catalytic regenerator atmospheric exhaust gas
flow rate for your catalytic reforming unit during the coke burn and
rejuvenation cycles if the unit operates as a constant pressure system
during these cycles. You may

also use this alternative to a continuous parameter monitoring system
for the gas flow rate exiting the catalyst regenerator to determine
inlet velocity to the primary internal cyclones as required in Sec.
63.1564(c)(5) regardless of the configuration of the catalytic
regenerator exhaust vent downstream of the regenerator (i.e.,
regardless of whether or not any other gas streams are introduced into
the catalyst regeneration vent). Except, if you only use this
alternative to demonstrate compliance with Sec.  63.1564(c)(5), you
shall use this procedure for the performance test and for monitoring
after the performance test. You shall:
* * * * *

0
24. Section 63.1574 is amended by revising paragraph (a)(3)(ii) to read
as follows:

Sec.  63.1574  What notifications must I submit and when?

    (a) * * *
    (3) * * *
    (ii) For each initial compliance demonstration that includes a
performance test, you must submit the notification of compliance status
no later than 150 calendar days after the compliance date specified for
your affected source in Sec.  63.1563. For data collected using test
methods supported by the EPA's Electronic Reporting Tool (ERT) as
listed on the EPA's ERT website (https://www.epa.gov/electronic-reporting-air-emissions/electronic-reporting-tool-ert) at the time of
the test, you must submit the results in accordance with Sec.
63.1575(k)(1)(i) by the date that you submit the Notification of
Compliance Status, and you must include the process unit(s) tested, the
pollutant(s) tested, and the date that such performance test was
conducted in the Notification of Compliance Status. For performance
evaluations of continuous monitoring systems (CMS) measuring relative
accuracy test audit (RATA) pollutants that are supported by the EPA's
ERT as listed on the EPA's ERT website at the time of the evaluation,
you must submit the results in accordance with Sec.  63.1575(k)(2)(i)
by the date that you submit the Notification of Compliance Status, and
you must include the process unit where the CMS is installed, the
parameter measured by the CMS, and the date that the performance
evaluation was conducted in the Notification of Compliance Status. All
other performance test and performance evaluation results (i.e., those
not supported by EPA's ERT) must be reported in the Notification of
Compliance Status.
* * * * *

0
25. Section 63.1575 is amended by:
0
a. Revising paragraphs (f)(1), (k)(1) introductory text and (k)(2)
introductory text; and
0
b. Adding paragraph (l).
    The revisions and additions read as follows:

Sec.  63.1575  What reports must I submit and when?

* * * * *
    (f) * * *
    (1) A copy of any performance test or performance evaluation of a
CMS done during the reporting period on any affected unit, if
applicable. The report must be included in the next semiannual
compliance report. The copy must include a complete report for each
test method used for a particular kind of emission point tested. For
additional tests performed for a similar emission point using the same
method, you must submit the results and any other information required,
but a complete test report is not required. A complete test report
contains a brief process description; a simplified flow diagram showing
affected processes, control equipment, and sampling point locations;
sampling site data; description of sampling and analysis procedures and
any modifications to standard procedures; quality assurance procedures;
record of operating conditions during the test; record of preparation
of standards; record of calibrations; raw data sheets for field
sampling; raw data sheets for field and laboratory analyses;
documentation of calculations; and any other information required by
the test method. For data collected using test methods supported by the
EPA's Electronic Reporting Tool (ERT) as listed on the EPA's ERT
website (https://www.epa.gov/electronic-reporting-air-emissions/electronic-reporting-tool-ert) at the time of the test, you must submit
the results in accordance with paragraph (k)(1)(i) of this section by
the date that you submit the compliance report, and instead of
including a copy of the test report in the compliance report, you must
include the process unit(s) tested, the pollutant(s) tested, and the
date that such performance test was conducted in the compliance report.
For performance evaluations of CMS measuring relative accuracy test
audit (RATA) pollutants that are supported by the EPA's ERT as listed
on the EPA's ERT website at the time of the evaluation, you must submit
the results in accordance with paragraph (k)(2)(i) of this section by
the date that you submit the compliance report, and you must include
the process unit where the CMS is installed, the parameter measured by
the CMS, and the date that the performance evaluation was conducted in
the compliance report. All other performance test and performance
evaluation results (i.e., those not supported by EPA's ERT) must be
reported in the compliance report.
* * * * *
    (k) * * *
    (1) Unless otherwise specified by this subpart, within 60 days
after the date of completing each performance test as required by this
subpart, you must submit the results of the performance tests following
the procedure specified in either paragraph (k)(1)(i) or (ii) of this
section.
* * * * *
    (2) Unless otherwise specified by this subpart, within 60 days
after the date of completing each CEMS performance evaluation required
by Sec.  63.1571(a) and (b), you must submit the results of the
performance evaluation following the procedure specified in either
paragraph (k)(2)(i) or (ii) of this section.
* * * * *
    (l) Extensions to electronic reporting deadlines. (1) If you are
required to electronically submit a report through the Compliance and
Emissions Data Reporting Interface (CEDRI) in the EPA's Central Data
Exchange (CDX), and due to a planned or actual outage of either the
EPA's CEDRI or CDX systems within the period of time beginning 5
business days prior to the date that the submission is due, you will be
or are precluded from accessing CEDRI or CDX and submitting a required
report within the time prescribed, you may assert a claim of EPA system
outage for failure to timely comply with the reporting requirement. You
must submit notification to the Administrator in writing as soon as
possible following the date you first knew, or through due diligence
should have known, that the event may cause or caused a delay in
reporting. You must provide to the Administrator a written description
identifying the date(s) and time(s) the CDX or CEDRI were unavailable
when you attempted to access it in the 5 business days prior to the
submission deadline; a rationale for attributing the delay in reporting
beyond the regulatory deadline to the EPA system outage; describe the
measures taken or to be taken to minimize the delay in reporting; and
identify a date by which you propose to report, or if you have already
met the reporting requirement at the time of the notification, the date
you reported. In any circumstance, the report must be submitted
electronically as soon as possible after the outage is resolved. The
decision to accept the

claim of EPA system outage and allow an extension to the reporting
deadline is solely within the discretion of the Administrator.
    (2) If you are required to electronically submit a report through
CEDRI in the EPA's CDX and a force majeure event is about to occur,
occurs, or has occurred or there are lingering effects from such an
event within the period of time beginning 5 business days prior to the
date the submission is due, the owner or operator may assert a claim of
force majeure for failure to timely comply with the reporting
requirement. For the purposes of this section, a force majeure event is
defined as an event that will be or has been caused by circumstances
beyond the control of the affected facility, its contractors, or any
entity controlled by the affected facility that prevents you from
complying with the requirement to submit a report electronically within
the time period prescribed. Examples of such events are acts of nature
(e.g., hurricanes, earthquakes, or floods), acts of war or terrorism,
or equipment failure or safety hazard beyond the control of the
affected facility (e.g., large scale power outage). If you intend to
assert a claim of force majeure, you must submit notification to the
Administrator in writing as soon as possible following the date you
first knew, or through due diligence should have known, that the event
may cause or caused a delay in reporting. You must provide to the
Administrator a written description of the force majeure event and a
rationale for attributing the delay in reporting beyond the regulatory
deadline to the force majeure event; describe the measures taken or to
be taken to minimize the delay in reporting; and identify a date by
which you propose to report, or if you have already met the reporting
requirement at the time of the notification, the date you reported. In
any circumstance, the reporting must occur as soon as possible after
the force majeure event occurs. The decision to accept the claim of
force majeure and allow an extension to the reporting deadline is
solely within the discretion of the Administrator.

0
26. Section 63.1576 is amended by revising paragraph (a)(2)(i) to read
as follows:

Sec.  63.1576  What records must I keep, in what form, and for how
long?

    (a) * * *
    (2) * * *
    (i) Record the date, time, and duration of each startup and/or
shutdown period for which the facility elected to comply with the
alternative standards in Sec.  63.1564(a)(5)(ii) or Sec.
63.1565(a)(5)(ii) or Sec.  63.1568(a)(4)(ii) or (iii).
* * * * *

0
27. Table 3 to Subpart UUU is amended by revising the table heading and
entries for items 2.c, 6, 7, 8 and 9 to read as follows:

  Table 3 to Subpart UUU of Part 63--Continuous Monitoring Systems for
            Metal HAP Emissions From Catalytic Cracking Units
                              * * * * * * *
------------------------------------------------------------------------
                                 If you use this
   For each new or existing      type of  control    You shall install,
 catalytic cracking unit . . .   device for  your  operate, and maintain
                                    vent . . .            a . . .
------------------------------------------------------------------------

                              * * * * * * *
2. * * *
                                c. Wet scrubber..  Continuous parameter
                                                    monitoring system to
                                                    measure and record
                                                    the pressure drop
                                                    across the
                                                    scrubber,\2\ the gas
                                                    flow rate entering
                                                    or exiting the
                                                    control device,\1\
                                                    and total liquid (or
                                                    scrubbing liquor)
                                                    flow rate to the
                                                    control device.

                              * * * * * * *
6. Option 1a: Elect NSPS        Any..............  See item 1 of this
 subpart J, PM per coke burn-                       table.
 off limit, not subject to the
 NSPS for PM in 40 CFR 60.102
 or 60.102a(b)(1).
7. Option 1b: Elect NSPS        Any..............  The applicable
 subpart Ja, PM per coke burn-                      continuous
 off limit, not subject to the                      monitoring systems
 NSPS for PM in 40 CFR 60.102                       in item 2 of this
 or 60.102a(b)(1).                                  table.
8. Option 1c: Elect NSPS        Any..............  See item 3 of this
 subpart Ja, PM concentration                       table.
 limit not subject to the NSPS
 for PM in 40 CFR 60.102 or
 60.102a(b)(1).
9. Option 2: PM per coke burn-  Any..............  The applicable
 off limit, not subject to the                      continuous
 NSPS for PM in 40 CFR 60.102                       monitoring systems
 or 60.102a(b)(1).                                  in item 2 of this
                                                    table.

                              * * * * * * *
------------------------------------------------------------------------
\1\ If applicable, you can use the alternative in Sec.   63.1573(a)(1)
  instead of a continuous parameter monitoring system for gas flow rate.
\2\ If you use a jet ejector type wet scrubber or other type of wet
  scrubber equipped with atomizing spray nozzles, you can use the
  alternative in Sec.   63.1573(b) instead of a continuous parameter
  monitoring system for pressure drop across the scrubber.

0
28. Table 4 to Subpart UUU of Part 63 is amended by revising the
entries for items 9.c and 10.c to read as follows:
* * * * *

  Table 4 to Subpart UUU of Part 63--Requirements for Performance Tests
          for Metal HAP Emissions From Catalytic Cracking Units
                              * * * * * * *
------------------------------------------------------------------------
For each  new or
     existing
    catalytic
  cracking unit    You must . . .    Using . . .     According to these
    catalyst                                         requirements . . .
   regenerator
   vent . . .
------------------------------------------------------------------------

                              * * * * * * *
9. * * *
                  c. Determine     XRF procedure    You must obtain 1
                   the              in appendix A    sample for each of
                   equilibrium      to this          the 3 test runs;
                   catalyst Ni      subpart 1; or    determine and
                   concentration.   EPA Method       record the
                                    6010B or 6020    equilibrium
                                    or EPA Method    catalyst Ni
                                    7520 or 7521     concentration for
                                    in SW-8462; or   each of the 3
                                    an alternative   samples; and you
                                    to the SW-846    may adjust the
                                    method           laboratory results
                                    satisfactory     to the maximum
                                    to the           value using
                                    Administrator.   Equation 1 of Sec.
                                                      63.1571, if
                                                     applicable.

                              * * * * * * *
10. * * *
                  c. Determine     See item 9.c.    You must obtain 1
                   the              of this table.   sample for each of
                   equilibrium                       the 3 test runs;
                   catalyst Ni                       determine and
                   concentration.                    record the
                                                     equilibrium
                                                     catalyst Ni
                                                     concentration for
                                                     each of the 3
                                                     samples; and you
                                                     may adjust the
                                                     laboratory results
                                                     to the maximum
                                                     value using
                                                     Equation 2 of Sec.
                                                      63.1571, if
                                                     applicable.

                              * * * * * * *
------------------------------------------------------------------------

* * * * *

0
29. Table 5 to Subpart UUU is amended by revising the entry for item 3
to read as follows:

  Table 5 to Subpart UUU of Part 63--Initial Compliance With Metal HAP
              Emission Limits for Catalytic Cracking Units
                              * * * * * * *
------------------------------------------------------------------------
                                For the following
   For each new and existing     emission limit .  You have demonstrated
 catalytic cracking unit . . .         . .          compliance if . . .

------------------------------------------------------------------------

                              * * * * * * *
3. Subject to NSPS for PM in    PM emissions must  You have already
 40 CFR 60.102a(b)(1)(ii),       not exceed 0.5 g/  conducted a
 electing to meet the PM per     kg (0.5 lb PM/     performance test to
 coke burn-off limit.            1,000 lb) of       demonstrate initial
                                 coke burn-off).    compliance with the
                                                    NSPS and the
                                                    measured PM emission
                                                    rate is less than or
                                                    equal to 0.5 g/kg
                                                    (0.5 lb/1,000 lb) of
                                                    coke burn-off in the
                                                    catalyst
                                                    regenerator. As part
                                                    of the Notification
                                                    of Compliance
                                                    Status, you must
                                                    certify that your
                                                    vent meets the PM
                                                    limit. You are not
                                                    required to do
                                                    another performance
                                                    test to demonstrate
                                                    initial compliance.
                                                    As part of your
                                                    Notification of
                                                    Compliance Status,
                                                    you certify that
                                                    your BLD; CO2, O2,
                                                    or CO monitor; or
                                                    continuous opacity
                                                    monitoring system
                                                    meets the
                                                    requirements in Sec.
                                                      63.1572.

                              * * * * * * *
------------------------------------------------------------------------

0
30. Table 6 to Subpart UUU is amended by revising the entries for items
1.a.ii and 7 to read as follows:

 Table 6 to Subpart UUU of Part 63--Continuous Compliance With Metal HAP
              Emission Limits for Catalytic Cracking Units
                              * * * * * * *
------------------------------------------------------------------------
                                 Subject to this
                                  emission limit   You shall demonstrate
   For each new and existing    for your catalyst  continuous compliance
 catalytic cracking unit . . .   regenerator vent         by . . .
                                      . . .
------------------------------------------------------------------------
1. * * *......................  a. * * *.........
                                                   ii. Conducting a
                                                    performance test
                                                    before August 1,
                                                    2017 or within 150
                                                    days of startup of a
                                                    new unit and
                                                    thereafter following
                                                    the testing
                                                    frequency in Sec.
                                                    63.1571(a)(5) as
                                                    applicable to your
                                                    unit.

                              * * * * * * *
7. Option 1b: Elect NSPS        PM emissions must  See item 2 of this
 subpart Ja requirements for     not exceed 1.0 g/  table.
 PM per coke burn-off limit,     kg (1.0 lb PM/
 not subject to the NSPS for     1,000 lb) of
 PM in 40 CFR 60.102 or          coke burn-off.
 60.102a(b)(1).

                              * * * * * * *
------------------------------------------------------------------------

0
31. Table 10 to Subpart UUU is amended by revising the entry for item 3
to read as follows:

  Table 10 to Subpart UUU of Part 63--Continuous Monitoring Systems for
           Organic HAP Emissions From Catalytic Cracking Units
                              * * * * * * *
------------------------------------------------------------------------
                                                     You shall install,
                                 And you use this  operate, and maintain
   For each new or existing      type of control        this type of
 catalytic cracking unit . . .   device for your   continuous monitoring
                                    vent . . .          system . . .
------------------------------------------------------------------------

                              * * * * * * *
3. During periods of startup,   Any..............  Continuous parameter
 shutdown or hot standby                            monitoring system to
 electing to comply with the                        measure and record
 operating limit in Sec.                            the concentration by
 63.1565(a)(5)(ii).                                 volume (wet or dry
                                                    basis) of oxygen
                                                    from each catalyst
                                                    regenerator vent. If
                                                    measurement is made
                                                    on a wet basis, you
                                                    must comply with the
                                                    limit as measured
                                                    (no moisture
                                                    correction).
------------------------------------------------------------------------

0
32. Table 43 to Subpart UUU is amended by revising the entry for item 2
to read as follows:

      Table 43 to Subpart UUU of Part 63--Requirements for Reports
                              * * * * * * *
------------------------------------------------------------------------
                                    The report must    You shall submit
      You must submit . . .          contain . . .     the report . . .
------------------------------------------------------------------------

                              * * * * * * *
2. Performance test and CEMS      On and after        Semiannually
 performance evaluation data.      February 1, 2016,   according to the
                                   the information     requirements in
                                   specified in Sec.   Sec.   63.1575(b)
                                     63.1575(k)(1).    and (f).
------------------------------------------------------------------------

0
33. Table 44 to Subpart UUU is amended by revising the entries
``63.6(f)(3)'', ``63.6(h)(7)(i)'', ``63.6(h)(8)'', ``63.7(a)(2)'',
``63.7(g)'', ``63.8(e)'', ``63.10(d)(2)'', ``63.10(e)(1)-(2)'', and
``63.10(e)(4)'' to read as follows:

          Table 44 to Subpart UUU of Part 63--Applicability of NESHAP General Provisions to Subpart UUU
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
                                                               Applies to  subpart
              Citation                       Subject                   UUU                   Explanation
----------------------------------------------------------------------------------------------------------------

                                                  * * * * * * *
Sec.   63.6(f)(3)..................  ......................  Yes...................  Except the cross-references
                                                                                to Sec.   63.6(f)(1) and
                                                                                (e)(1)(i) are changed to
                                                                                Sec.   63.1570(c) and this
                                                                                subpart specifies how and
                                                                                when the performance test
                                                                                results are reported.

                                                  * * * * * * *
Sec.   63.6(h)(7)(i)...............  Report COM Monitoring   Yes...................  Except this subpart
                                      Data from Performance                           specifies how and when the
                                      Test.                                           performance test results
                                                                                are reported.

                                                  * * * * * * *
Sec.   63.6(h)(8)..................  Determining Compliance  Yes...................  Except this subpart
                                      with Opacity/VE                                 specifies how and when the
                                      Standards.                                      performance test results
                                                                                are reported.

                                                  * * * * * * *
Sec.   63.7(a)(2)..................  Performance Test Dates  Yes...................  Except this subpart
                                                                                specifies that the results
                                                                                of initial performance
                                                                                tests must be submitted
                                                                                within 150 days after the
                                                                                compliance date.

                                                  * * * * * * *
Sec.   63.7(g).....................  Data Analysis,          Yes...................  Except this subpart
                                      Recordkeeping,                                  specifies how and when the
                                      Reporting.                                      performance test or
                                                                                performance evaluation
                                                                                results are reported and
                                                                                Sec.   63.7(g)(2) is
                                                                                reserved and does not
                                                                                apply.

                                                  * * * * * * *
Sec.   63.8(e).....................  CMS Performance         Yes...................  Except this subpart
                                      Evaluation.                                     specifies how and when the
                                                                                performance evaluation
                                                                                results are reported.

                                                  * * * * * * *
Sec.   63.10(d)(2).................  Performance Test        No....................  This subpart specifies how
                                      Results.                                        and when the performance
                                                                                test results are reported.

                                                  * * * * * * *
Sec.   63.10(e)(1)-(2).............  Additional CMS Reports  Yes...................  Except this subpart
                                                                                specifies how and when the
                                                                                performance evaluation
                                                                                results are reported.

                                                  * * * * * * *
Sec.   63.10(e)(4).................  COMS Data Reports.....  Yes...................  Except this subpart
                                                                                specifies how and when the
                                                                                performance test results
                                                                                are reported.

                                                  * * * * * * *
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[FR Doc. 2018-25080 Filed 11-23-18; 8:45 am]
BILLING CODE 6560-50-P