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Federal Register / Vol. 86, No. 117 / Tuesday, June 22, 2021 / Proposed Rules
lotter on DSK11XQN23PROD with PROPOSALS1

consistent with the definition in Sections IV.D.1.b.ii and VII.A.3.c.
Revisions made in Section IV.B.3.
clarify that vapor collection systems must be leak-tight and properly maintained and operated.
Section IV.D. regulates VOC leaks from gasoline transport trucks. Revision to Sections IV.D.2 and IV.D.3. replace the outdated vacuum-pressure test in the CTG for Control of Volatile Organic Compound Leaks from Gasoline Tank Trucks and Vapor Collection Systems 58
with the more current EPA Method 27.59
Federal standards in NSPS XX 60, NESHAP R 61, NESHAP BBBBBB 62, and NESHAP CCCCCC 63 reference the EPAs Method 27, Determination of Vapor Tightness of Gasoline Delivery Tank Using Pressure Vacuum Test, in contrast to the CTGs pressure-vacuum test. The test values in Reg. 7 Section IV.D.4 were also updated and are based on the EPAs CTG and correspond to the EPA Method 27 test values in NSPS XX, NESHAP R, NESHAP BBBBBB, and NESHAP CCCCCC. Recordkeeping and certification requirements in Section IV.D.4. were updated to correspond to the EPAs Method 27 and federal standards.
Under CAA section 110l, the EPA
cannot approve a SIP revision that interferes with any requirement concerning attainment, reasonable further progress, or any other applicable requirement of the Act. We propose to find that the revisions to Section IV.D.
comply with section 110l because the revisions are limited to updating the pressure vacuum test and values to be consistent with more recent EPA
regulations for gasoline tank trucks and vapor collection systems, and the changes do not weaken the SIP.
We propose to find that the revisions in Part B are consistent with gasoline transport truck, terminal, and service station control and testing requirements 58 Control of Volatile Organic Compound Leaks from Gasoline Tank Trucks and Vapor Collection Systems, Appendix A, EPA450/278051. Dec.
1978.
59 See also 40 CFR 63.425e.
60 Standards of Performance for Bulk Gasoline Terminals 40 CFR part 60, subpart XX August 18, 1983, last revised December 19, 2003.
61 National Emission Standards for Gasoline Distribution Facilities Bulk Gasoline Terminals and Pipeline Breakout Stations 40 CFR part 63
Subpart R December 14, 1994, last revised April 6, 2006.
62 National Emission Standards for Hazardous Air Pollutants for Source Category: Gasoline Distribution Bulk Terminals, Bulk Plants, and Pipeline Facilities 40 CFR part 63, subpart BBBBBB January 10, 2008, last revised January 24, 2011.
63 National Emission Standards for Hazardous Air Pollutants for Source Category: Gasoline Dispensing Facilities 40 CFR part 63, subpart CCCCCC
January 10, 2008, last revised January 24, 2011.

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of current NSPS and NESHAP standards and that approval of the submittal would comply with CAA Sections 110l and 193. We therefore propose to approve the revisions in Part B.
c. Part C
The revisions add a new Part C
heading encompassing Sections I, II, III, IV, V previously Reg. 7, Sections IXXI, XIII, XIV and appendixes D and E
formerly appendixes D and F. Part C
regulates surface coating, solvents, asphalt, graphic arts and printing, and pharmaceuticals. The revisions also include renumbering and updates to Parts and Sections referenced throughout Part C, and adds a new categorical rule regulating VOC
emissions from and establishing RACT
for general solvent use in Section II.F.
Section II.F. addresses VOC emissions from sources with a potential to emit 50
tons per year of VOC and with solvent use emissions greater than or equal to two tons per year in the DMNFR Area.
Section II.F.3. sets forth work practice requirements including covering containers, proper disposal of solvent waste, and the use of good air pollution practices such as the use of low/no VOC
solvent if possible, using only amounts needed, submerged fill pipes, closed loop systems, and maintaining operations to be leak free. Section II.F.4.
requires operations that use solvents with uncontrolled actual VOC emissions greater than or equal to 25 tons per year to reduce emissions by 90%. Sections II.F.5. and 6. set forth monitoring and recordkeeping requirements. Records must be maintained for a minimum of two years. Sources subject to Section II.F.4. requirements are also subject to additional control requirements, monitoring, performance testing, and recordkeeping requirements for general solvent use operations.
We propose to find that the provisions meet CAA and RACT requirements, and that they strengthen the SIP. We therefore propose to approve the changes in Part C.
d. Part D
The revisions add a new Part D.
heading for Sections I, II, and III
previously Reg. 7, Sections XII, XVII, and XVIII, and new Sections IV and V.64 Part D regulates oil and natural gas operations. The revisions also include renumbering and updates to Parts and Sections referenced throughout Part D, establishing a storage tank control 64 Parts of the submission, including all of new Sections IV and V, are State Only requirements. We therefore will not be acting on these Sections. The State Only provisions are excluded from the list of provisions that we are acting on in Table 5.

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threshold in lieu of the current systemwide control strategy, strengthening storage tank monitoring requirements, aligning related recordkeeping and reporting, and other SIP cleanup and strengthening measures.
i Section I.A.
Section I.A. contains applicability provisions for Part D. The revisions to Section I.A. streamline and clarify sources subject to Part D and remove the exemption associated with the systemwide control program for owners or operators of condensate tanks with total actual uncontrolled VOC emissions less than 30 tpy previously Section XII.A.7..
ii Sections I.B. and I.C.
Section I.B. contains definitions applicable to Part D. A new definition for commencement of operation was added for consistency with Regulation Number 3 and for clarity as to the applicability of other control requirements. New definitions for intermediate hydrocarbon liquid, produced water, storage tank, and storage vessel were also added. The definitions are clear, straightforward, accurate.
Section I.C. contains general provisions for Part D. Section I.C.2.
specifies how operators must calculate emissions and emission reductions to demonstrate compliance with control requirements. The revisions in Section I.C.2.a.iv expand current provisions to tanks storing produced water or hydrocarbon liquids other than condensate.
iii Section I.D.
Section I.D. contains provisions for storage tank emissions controls. In 2004
the Commission adopted the initial system-wide control strategy, which required operators to reduce emissions from their system of condensate tanks.
The system was composed of condensate tanks with uncontrolled actual VOC emissions equal to or greater than two tpy, and allowed operators to decide which tanks to control if emissions from the system were reduced by specified percentages. The revisions in Section I.D. replace the system-wide control strategy with an individual storage tank control strategy in Section I.D.3. Operators in the DMNFR Area were required to install controls on storage tanks with uncontrolled actual VOC emissions equal to or greater than four tpy by May 1, 2020. The control requirements in Section I.D. were expanded to include crude oil and produced water tanks.
According to the Division, this will
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