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Federal Register / Vol. 86, No. 108 / Tuesday, June 8, 2021 / Rules and Regulations CL6002E25 Series 1000 AFM, CSP D
012, Revision 23, dated February 14, 2020.
viii Section 0502, In-flight Engine Failures, of Chapter 5, ABNORMAL
PROCEDURES, of Bombardier CRJ Series Regional Jet Model CL6002E25 Series 1000 AFM, CSP D012, Revision 23, dated February 14, 2020.
3 For Bombardier service information identified in this AD, contact MHI RJ
Aviation ULC, 12655 Henri-Fabre Blvd., Mirabel, Quebec J7N 1E1 Canada; Widebody Customer Response Center North America toll-free telephone +18442722720 or direct-dial telephone +15148558500; fax +15148558501; email thd.crj@mhirj.com;
internet https mhirj.com.
4 You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 2062313195.
5 You may view this service information that is incorporated by reference at the National Archives and Records Administration NARA. For information on the availability of this material at NARA, email fedreg.legal@nara.gov, or go to: https
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued on May 11, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202111956 Filed 6721; 8:45 am BILLING CODE 491013P

ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 52

Approval and Promulgation of Implementation Plans; North Dakota;
Revisions to Air Pollution Control Rules; Regional Haze Environmental Protection Agency EPA.
ACTION: Final rule.
AGENCY:

jbell on DSKJLSW7X2PROD with RULES

This rule is effective on July 8,
2021.
The EPA has established a docket for this action under Docket ID
No. EPAR08OAR20210002. All documents in the docket are listed on the http www.regulations.gov website.
Although listed in the index, some information is not publicly available, e.g., 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 http
www.regulations.gov, or please contact the person identified in the FOR FURTHER
INFORMATION CONTACT section for additional availability information.
ADDRESSES:

Jkt 253001

Jaslyn Dobrahner, Air and Radiation Division, EPA, Region 8, Mailcode 8ARDIO, 1595 Wynkoop Street, Denver, Colorado 802021129, 303
3126252, dobrahner.jaslyn@epa.gov.
SUPPLEMENTARY INFORMATION:
Throughout this document we, us, and our means the EPA.

I. Background
The Environmental Protection Agency EPA is finalizing approval on a revision to the North Dakota State Implementation Plan SIP submitted by the State of North Dakota on November 11, 2016 and supplemented on March 15, 2021, that addresses amendments to the regional haze provisions of the North Dakota Administrative Code NDAC. These revisions were submitted to remove certain regional haze requirements related to Best Available Retrofit Technology BART
in the first planning period. EPA is also finalizing approval on a revision to the North Dakota SIP submitted on August
SUMMARY:

15:53 Jun 07, 2021

DATES:

FOR FURTHER INFORMATION CONTACT:

EPAR08OAR20210002; FRL10024
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3, 2020, that addresses additional amendments to the regional haze provisions of the NDAC. The 2020 SIP
revision was submitted to update the incorporation by reference date for regional haze definitions, add emission reduction requirements to make reasonable progress during the second and subsequent regional haze planning periods, and revise the regional haze monitoring, recordkeeping, and reporting requirements to be applicable under the second and subsequent planning period. EPA is taking this action pursuant to section 110 and Part C of the Clean Air Act CAA.

The background for this action is discussed in detail in our April 1, 2021
proposal 86 FR 17101. In that document we proposed to approve North Dakotas regional haze SIP
revision submitted by the State of North Dakota on November 11, 2016 and supplemented on March 15, 2021.
Specifically, we proposed to approve North Dakotas removal of NDAC
section 33152502.1 requirement pertaining to the submittal of a regional haze BART analysis and section 3315
2503 requirement that references the federal guidelines for BART
determinations under the regional haze
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rule from the regional haze provisions provided in NDAC section 331525.1
We also proposed to approve a portion of North Dakotas August 3, 2020, SIP revision that addresses NDAC
section 33.11525 of the Air Pollution Control Rules for regional haze.2
Specifically, we proposed to approve the following revisions to NDAC:
Section 33.1152501 which updates the incorporation by reference date for regional haze definitions; section 33.1
152503 which adds emission reduction requirements to make reasonable progress for the second and subsequent planning periods; and section 33.1152504 which revises the regional haze monitoring, recordkeeping, and reporting requirements to be applicable to sources under the second and subsequent planning periods.
We did not receive any comments on the proposed rule.
II. Final Action In this action, EPA is finalizing approval on SIP amendments to North Dakota Air Pollution Control Rules, shown in Table 1, submitted by the State of North Dakota on November 11, 2016, and supplemented March 15, 2021, and August 3, 2020.

TABLE 1LIST OF NORTH DAKOTA
AMENDMENTS THAT EPA IS APPROVING
Amended Sections in the November 11, 2016
Submittal, Supplemented March 15, 2021
NDAC section 33152502.1,3 NDAC section 33
152503.4
Amended Sections in the August 3, 2020
Submittal NDAC section 33.1152501, NDAC section 33.1
152503, NDAC section 33.1152504.

III. Incorporation by Reference In this document, EPA is finalizing regulatory text that includes incorporation by reference. In accordance with requirements of 1 CFR
51.5, EPA is finalizing the incorporation 1 On August 6, 2018, North Dakota submitted a SIP to EPA that recodified the Air Pollution Control Rules, including those that address regional haze, from NDAC section 3315 to NDAC section 33.1
15. EPA approved the recodification on February 5, 2019 84 FR 1610. The recodification made the regional haze section of NDAC to be changed from section 331525 to section 33.11525. The 2018
SIP reflected the deletions of section 33.11525
02.1 and section 33.115.2503 formerly referred to as section 33152502.1 and section 331525
03.
2 EPA will act on the remaining portions of the ND August 3, 2020, SIP in a separate future rulemaking.
3 Since North Dakotas NDAC recodification in 2018, section 33152502.1 is referred to as section 33.1152502.1.
4 Since North Dakotas NDAC recodification in 2018, section 33152503 is referred to as section 33.1152503.

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