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###### Department of Transportation

###### Federal Aviation Administration

          - 14 CFR Part 71
          - [Docket No. FAA-2011-1192; Airspace Docket No. 11-ANM-22]

# AGENCY:

Federal Aviation Administration (FAA), DOT.

# ACTION:

Final rule.

# SUMMARY:

This action amends Class E airspace at Sheridan County Airport, Sheridan, WY. Decommissioning of the Sheridan Tactical Air Navigation System (TACAN) has made this action necessary for the safety and management of Instrument Flight Rules (IFR) operations at the airport.

# DATES:

Effective date, 0901 UTC, May 31, 2012. The Director of the Federal Register approves this incorporation by reference action under 1 CFR part 51, subject to the annual revision of FAA Order 7400.9 and publication of conforming amendments.

# FOR FURTHER INFORMATION CONTACT:

Eldon Taylor, Federal Aviation Administration, Operations Support Group, Western Service Center, 1601 Lind Avenue SW., Renton, WA 98057; telephone (425) 203-4537.

# SUPPLEMENTARY INFORMATION:

## History

                    On December 22, 2011, the FAA published in the                     **Federal Register**                     a notice of proposed rulemaking to amend controlled airspace at Sheridan, WY (76 FR 79563). Interested parties were invited to participate in this rulemaking effort by submitting written comments on the proposal to the FAA. No comments were received.                

Class E airspace designations are published in paragraph 6002, of FAA Order 7400.9V dated August 9, 2011, and effective September 15, 2011, which is incorporated by reference in 14 CFR Part 71.1. The Class E airspace designations listed in this document will be published subsequently in that Order.

## The Rule

This action amends Title 14 Code of Federal Regulations (14 CFR) Part 71 by amending Class E surface airspace at Sheridan County Airport, Sheridan, WY. Airspace reconfiguration is necessary due to the decommissioning of the Sheridan TACAN. This action is necessary for the safety and management of IFR operations.

The FAA has determined this regulation only involves an established body of technical regulations for which frequent and routine amendments are necessary to keep them operationally current. Therefore, this regulation: (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 this rule, when promulgated, will not have a significant economic impact on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. The FAA's authority to issue rules regarding aviation safety is found in Title 49 of the U.S. Code. Subtitle 1, Section 106 discusses 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 amends controlled airspace at Sheridan County Airport, Sheridan WY.

# List of Subjects in 14 CFR Part 71

      - Airspace
      - Incorporation by reference
      - Navigation (air)

## Adoption of the Amendment

In consideration of the foregoing, the Federal Aviation Administration amends 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(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 Part 71.1 of the Federal Aviation Administration Order 7400.9V, Airspace Designations and Reporting Points, dated August 9, 2011, and effective September 15, 2011 is amended as follows:

### Paragraph 6002 Class E airspace designated as surface areas.

* * * * *

## ANM WY E2 Sheridan WY [Amended]

Sheridan County Airport, WY

(Lat. 44°46′09′′ N., long. 106°58′49′′ W.)

That airspace extending upward from the surface within a 4.5-mile radius of the Sheridan County Airport, and within 4.5 miles each side of the 157° bearing of the airport, extending from the 4.5-mile radius to 17.6 miles southeast of the airport, and within 3.5 miles each side of the Sheridan County Airport 316° bearing extending from the 4.5-mile radius to 15.5 miles northwest of the airport, and within 3.5 miles each side of the Sheridan County Airport 325° bearing extending from the 4.5-mile radius to 16 miles northwest of the airport, and 4 miles each side of the 336° bearing of the Sheridan County Airport extending from the 4.5-mile radius to 15.4 miles northwest of the airport, and within 3.5 miles each side of the Sheridan County Airport 140° bearing extending from the 4.5-mile radius to 15.5 miles southeast of the airport.

      ( print page 15576)    
Issued in Seattle, Washington, on March 7, 2012.

John Warner,

Manager, Operations Support Group, Western Service Center.

[FR Doc. 2012-6341 Filed 3-15-12; 8:45 am]

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