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Federal Register / Vol. 86, No. 183 / Friday, September 24, 2021 / Rules and Regulations review may be filed, and shall not postpone the effectiveness of such rule or action. This action may not be challenged later in proceedings to enforce its requirements. See section 307b2.
List of Subjects in 40 CFR Part 52
Environmental protection, Air pollution control, Best available retrofit technology, Carbon monoxide, Incorporation by reference, Intergovernmental relations, Lead, Nitrogen dioxide, Ozone, Particulate matter, Reporting and recordkeeping requirements, Regional haze, Sulfur
dioxide, Visibility, Volatile organic compounds.
Dated: September 17, 2021.
David Gray, Acting Regional Administrator, Region 6.

For the reasons stated in the preamble, the Environmental Protection Agency amends 40 CFR part 52 as follows:
PART 52APPROVAL AND
PROMULGATION OF
IMPLEMENTATION PLANS

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

Subpart TLouisiana 2. In 52.970e, the second table titled EPA Approved Louisiana Nonregulatory Provisions and QuasiRegulatory Measures is amended by adding the entry Louisiana Regional Haze Progress Report at the end of the table to read as follows:

52.970

1. The authority citation for part 52
continues to read as follows:

52993

Identification of plan.

e

EPA APPROVED LOUISIANA NONREGULATORY PROVISIONS AND QUASI-REGULATORY MEASURES
Name of SIP
provision
State submittal date/
effective date
Applicable geographic or nonattainment area

Louisiana Regional Haze Progress Report.

Statewide

FR Doc. 202120617 Filed 92321; 8:45 am BILLING CODE 656050P

ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 52
EPAR03OAR20200528; FRL897402
R3

Air Plan Approval; Maryland; Negative Declaration for the Oil and Gas Industry Environmental Protection Agency EPA.
ACTION: Final rule.
AGENCY:

The Environmental Protection Agency EPA is approving a state implementation plan SIP revision submitted by the State of Maryland.
This revision provides Marylands determination, via a negative declaration, that there are no sources within its borders subject to EPAs 2016
Oil and Natural Gas control techniques guidelines 2016 Oil and Gas CTG. EPA
is approving these revisions to the Maryland SIP in accordance with the requirements of the Clean Air Act CAA.

SUMMARY:

3/25/2021

EPA approval date

9/24/2021, Insert Federal Register citation.

the https www.regulations.gov website. Although listed in the index, some information is not publicly available, e.g., confidential business information CBI or other information whose disclosure is restricted by statute.
Certain other material, such as copyrighted material, is not placed on the internet and will be publicly available only in hard copy form.
Publicly available docket materials are available through https
www.regulations.gov, or please contact the person identified in the FOR FURTHER
INFORMATION CONTACT section for additional availability information.
FOR FURTHER INFORMATION CONTACT:
David Talley, Planning &
Implementation Branch 3AD30, Air &
Radiation Division, U.S. Environmental Protection Agency, Region III, 1650
Arch Street, Philadelphia, Pennsylvania 19103. The telephone number is 215
8142117. Mr. Talley can also be reached via electronic mail at talley.david@epa.gov.
SUPPLEMENTARY INFORMATION:

I. Background On February 9, 2021 86 FR 8742, EPA published a notice of proposed rulemaking NPRM for the State of Maryland. In the NPRM, EPA proposed DATES: This final rule is effective on approval of Marylands negative October 25, 2021.
declaration SIP submittal for the 2016
Oil and Gas CTG. On June 18, 2020, the ADDRESSES: EPA has established a Maryland Department of the docket for this action under Docket ID
Number EPAR03OAR20200528. All Environment MDE submitted the negative declaration for the 2016 Oil documents in the docket are listed on
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and Gas CTG as a revision to the Maryland SIP.
The CAA regulates emissions of nitrogen oxides NOX and volatile organic compounds VOCs to prevent photochemical reactions that result in ozone formation. Reasonably available control technology RACT is a strategy for reducing NOX and VOC emissions from stationary sources within designated nonattainment areas classified as moderate or above that are not meeting the national ambient air quality standards NAAQS for ozone.
EPA has consistently defined RACT
as the lowest emission limit that a particular source is capable of meeting by the application of the control technology that is reasonably available considering technological and economic feasibility.
Control techniques guidelines CTGs and alternative control techniques ACTs form important components of the guidance that EPA provides to states for making RACT determinations. CTGs are used to presumptively define VOC
RACT for applicable source categories.
CAA section 182b2A requires that for ozone nonattainment areas classified as moderate or above, states must revise their SIPs to include provisions to implement RACT for each category of VOC sources covered by a CTG
document. CAA section 184b1B
extends the RACT obligation to all areas of states within the ozone transport region OTR, including Maryland.

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