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###### Department of Transportation

###### Federal Aviation Administration

          - 14 CFR Part 71
          - [Docket No. FAA-2021-0674; Airspace Docket No. 21-ASW-14]
          - RIN 2120-AA66

# AGENCY:

Federal Aviation Administration (FAA), DOT.

# ACTION:

Notice of proposed rulemaking (NPRM).

# SUMMARY:

This action proposes to amend the Class D and Class E airspace at Ardmore, OK. The FAA is proposing this action as the result of airspace reviews due to the decommissioning of the Arbuckle non-directional beacon (NDB). The geographic coordinates of the airport would also be updated to coincide with the FAA's aeronautical database.

# DATES:

Comments must be received on or before October 12, 2021.

# ADDRESSES:

                        Send comments on this proposal to the U.S. Department of Transportation, Docket Operations, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590; telephone (202) 366-9826, or (800) 647-5527. You must identify FAA Docket No. FAA-2021-0674/Airspace Docket No. 21-ASW-14, at the beginning of your comments. You may also submit comments through the internet at                         *https://www.regulations.gov.*                         You may review the public docket containing the proposal, any comments received, and any final disposition in person in the Dockets Office between 9:00 a.m. and 5:00 p.m., Monday through Friday, except federal holidays.                    

                        FAA Order 7400.11E, Airspace Designations and Reporting Points, and subsequent amendments can be viewed online at                         *https://www.faa.gov/​air_​traffic/​publications/​.*                         For further information, you can contact the Airspace Policy Group, Federal Aviation Administration, 800 Independence Avenue SW, Washington, DC 20591; telephone: (202) 267-8783. The Order is also available for inspection at the National Archives and Records Administration (NARA). For information on the availability of FAA Order 7400.11E at NARA, email:                         *fr.inspection@nara.gov*                         or go to                         *https://www.archives.gov/​federal-register/​cfr/​ibr-locations.html.*

# FOR FURTHER INFORMATION CONTACT:

                        Jeffrey Claypool, Federal Aviation Administration, Operations Support                               ( print page 48089)                            Group, Central Service Center, 10101 Hillwood Parkway, Fort Worth, TX 76177; telephone (817) 222-5711.                    

# SUPPLEMENTARY INFORMATION:

## Authority for This Rulemaking

The FAA's authority to issue rules regarding aviation safety is found in Title 49 of the United States Code. Subtitle I, Section 106 describes the authority of the FAA Administrator. Subtitle VII, Aviation Programs, describes in more detail the scope of the agency's authority. This rulemaking is promulgated under the authority described in Subtitle VII, Part A, Subpart I, Section 40103. Under that section, the FAA is charged with prescribing regulations to assign the use of airspace necessary to ensure the safety of aircraft and the efficient use of airspace. This regulation is within the scope of that authority as it would amend the Class D airspace, Class E airspace area designated as an extension to Class D airspace, and Class E airspace extending upward from 700 feet above the surface at Ardmore Municipal Airport, Ardmore, OK, and the Class E airspace extending upward from 700 feet above the surface at Ardmore Downtown Executive Airport, Ardmore, OK, to support instrument flight rule operations at these airports.

## Comments Invited

Interested parties are invited to participate in this proposed rulemaking by submitting such written data, views, or arguments, as they may desire. Comments that provide the factual basis supporting the views and suggestions presented are particularly helpful in developing reasoned regulatory decisions on the proposal. Comments are specifically invited on the overall regulatory, aeronautical, economic, environmental, and energy-related aspects of the proposal. Communications should identify both docket numbers and be submitted in triplicate to the address listed above. Commenters wishing the FAA to acknowledge receipt of their comments on this notice must submit with those comments a self-addressed, stamped postcard on which the following statement is made: “Comments to Docket No. FAA-2021-0674/Airspace Docket No. 21-ASW-14.” The postcard will be date/time stamped and returned to the commenter.

All communications received before the specified closing date for comments will be considered before taking action on the proposed rule. The proposal contained in this notice may be changed in light of the comments received. A report summarizing each substantive public contact with FAA personnel concerned with this rulemaking will be filed in the docket.

## Availability of NPRMs

                    An electronic copy of this document may be downloaded through the internet at                     *https://www.regulations.gov*. Recently published rulemaking documents can also be accessed through the FAA's web page at                     *https://www.faa.gov/​air_​traffic/​publications/​airspace_​amendments/​.*

                    You may review the public docket containing the proposal, any comments received, and any final disposition in person in the Dockets Office (see the                     **ADDRESSES**                     section for the address and phone number) between 9:00 a.m. and 5:00 p.m., Monday through Friday, except federal holidays. An informal docket may also be examined during normal business hours at the Federal Aviation Administration, Air Traffic Organization, Central Service Center, Operations Support Group, 10101 Hillwood Parkway, Fort Worth, TX 76177.                

## Availability and Summary of Documents for Incorporation by Reference

                    This document proposes to amend FAA Order 7400.11E, Airspace Designations and Reporting Points, dated July 21, 2020, and effective September 15, 2020. FAA Order 7400.11E is publicly available as listed in the                     **ADDRESSES**                     section of this document. FAA Order 7400.11E lists Class A, B, C, D, and E airspace areas, air traffic service routes, and reporting points.                

## The Proposal

The FAA is proposing an amendment to 14 CFR part 71 by:

Amending the Class D airspace to within a 4.3-mile (increased from a 4.2-mile) radius of Ardmore Municipal Airport, Ardmore, OK; updating the geographic coordinates of the airport to coincide with the FAA's aeronautical database; and replacing the outdated term “Airport/Facility Directory” with “Chart Supplement”;

Amending the Class E airspace area designated as an extension to Class D airspace at Ardmore Municipal Airport within 1.4 (increased from 1.3) miles each side of the Ardmore VORTAC 050° (previously 056°) radial extending from the 4.3-mile (increased from 4.2-mile) radius of airport to 7.4 (decreased from 8.4) miles southwest of airport; updating the geographic coordinates of the airport to coincide with the FAA's aeronautical database; and replacing the outdated term “Airport/Facility Directory” with “Chart Supplement”;

And amending the Class E airspace extending upward from 700 feet above the surface at Ardmore Municipal Airport by adding an extension within 1.5 miles each side of the Ardmore VORTAC 050° radial extending from the 6.8-mile radius of the airport to 8.4 miles southwest of the airport; within 1.1 miles each side of the 315° bearing from the airport extending from the 6.8-mile radius of the airport to 7 (increased from 6.9) miles northwest of the airport; updating the geographic coordinates of the airport to coincide with the FAA's aeronautical database; and removing the extension northwest of the Ardmore VORTAC as it is no longer required.

These actions are the result of airspace reviews caused by the decommissioning of the Arbuckle NDB which provided guidance to instrument procedures at these airports.

Class D and Class E airspace designations are published in paragraph 5000, 6004, and 6005, respectively, of FAA Order 7400.11E, dated July 21, 2020, and effective September 15, 2020, which is incorporated by reference in 14 CFR 71.1. The Class D and E airspace designations listed in this document will be published subsequently in the Order.

FAA Order 7400.11, Airspace Designations and Reporting Points, is published yearly and effective on September 15.

## Regulatory Notices and Analyses

The FAA has determined that this regulation only involves an established body of technical regulations for which frequent and routine amendments are necessary to keep them operationally current, is non-controversial and unlikely to result in adverse or negative comments. It, therefore: (1) Is not a “significant regulatory action” under Executive Order 12866; (2) is not a “significant rule” under DOT Regulatory Policies and Procedures (44 FR 11034; February 26, 1979); and (3) does not warrant preparation of a regulatory evaluation as the anticipated impact is so minimal. Since this is a routine matter that will only affect air traffic procedures and air navigation, it is certified that this rule, when promulgated, would not have a significant economic impact on a substantial number of small entities under the criteria of the Regulatory Flexibility Act.

## Environmental Review

                    This proposal will be subject to an environmental analysis in accordance with FAA Order 1050.1F,                           ( print page 48090)                        “Environmental Impacts: Policies and Procedures” prior to any FAA final regulatory action.                

# List of Subjects in 14 CFR Part 71

      - Airspace
      - Incorporation by reference
      - Navigation (air)

## The Proposed Amendment

Accordingly, pursuant to the authority delegated to me, the Federal Aviation Administration proposes to amend 14 CFR part 71 as follows:

# PART 71—DESIGNATION OF CLASS A, B, C, D, AND E AIRSPACE AREAS; AIR TRAFFIC SERVICE ROUTES; AND REPORTING POINTS

1. The authority citation for 14 CFR part 71 continues to read as follows:

Authority: 49 U.S.C. 106(f), 106(g); 40103, 40113, 40120; E.O. 10854, 24 FR 9565, 3 CFR, 1959-1963 Comp., p. 389.

71.1 

2. The incorporation by reference in 14 CFR 71.1 of FAA Order 7400.11E, Airspace Designations and Reporting Points, dated July 21, 2020, and effective September 15, 2020, is amended as follows:

### Paragraph 5000 Class D Airspace.

* * * * *

## ASW OK D Ardmore, OK [Amended]

Ardmore Municipal Airport, OK

(Lat. 34°18′14″ N, long. 97°01′14″ W)

That airspace extending upward from the surface to and including 3,300 feet MSL within a 4.3-mile radius of Ardmore Municipal Airport. This Class D airspace area is effective during the specific dates and times established in advance by a Notice to Airmen. The effective date and time will thereafter be continuously published in the Chart Supplement.

### 6004 Class E Airspace Areas Designated as an Extension to a Class D or Class E Surface Area.

* * * * *

## ASW OK E4 Ardmore, OK [Amended]

Ardmore Municipal Airport, OK

(Lat. 34°18′14″ N, long. 97°01′14″ W)

Ardmore VORTAC

(Lat. 34°12′42″ N, long. 97°10′06″ W)

That airspace extending upward from the surface within 1.4 miles each side of the Ardmore VORTAC 050° radial extending from the 4.3-mile radius of Ardmore Municipal Airport to 7.4 miles southwest of the airport, and within 1 mile each side of the 315° bearing from Ardmore Municipal Airport extending from the 4.3-mile radius of the airport to 5.3 miles northwest of the airport. This Class E airspace area is effective during the specific dates and times established in advance by a Notice to Airmen. The effective date and time will thereafter be continuously published in the Chart Supplement.

### Paragraph 6005 Class E Airspace Areas Extending Upward From 700 Feet or More Above the Surface of the Earth.

* * * * *

## ASW OK E5 Ardmore, OK [Amended]

Ardmore Municipal Airport, OK

(Lat. 34°18′14″ N, long. 97°01′14″ W)

Ardmore VORTAC

(Lat. 34°12′42″ N, long. 97°10′06″ W)

Ardmore Downtown Executive Airport, OK

(Lat. 34°08′49″ N, long. 97°07′22″ W)

That airspace extending upward from the 700 feet above the surface within a 6.8-mile radius of Ardmore Municipal Airport, and within 1.5 miles each side of the Ardmore VORTAC 050° radial extending from the 6.8-mile radius of Ardmore Municipal Airport to 8.4 miles southwest of the airport, and within 1.1 miles each side of the 315° bearing from the Ardmore Municipal Airport extending from the 6.8-mile radius of the airport to 7 miles northwest of the airport, and within a 6.5-mile radius of Ardmore Downtown Executive Airport.

Issued in Fort Worth, Texas, on August 23, 2021.

Martin A. Skinner,

Acting Manager, Operations Support Group, ATO Central Service Center.

[FR Doc. 2021-18360 Filed 8-26-21; 8:45 am]

BILLING CODE 4910-13-P