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Establishment of Low Altitude Area Navigation Routes (T-Routes); St. Louis, MO

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Federal Aviation Administration (FAA), DOT.


Final rule.


This action establishes two low altitude Area Navigation (RNAV) routes, designated T-251 and T-272, in the St. Louis, MO, terminal area. T-routes are low altitude Air Traffic Service routes, based on RNAV, for use by aircraft that have instrument flight rules (IFR)-approved Global Positioning System (GPS)/Global Navigation Satellite System (GNSS) equipment. Minor changes to the coordinates for the RIVRS, IL, Intersection and the Foristell, MO, VORTAC have been made to correct rounding errors. The FAA is taking this action to enhance safety and improve the efficient use of the navigable airspace in the St. Louis, MO, terminal area.


Effective Date: 0901 UTC, June 5, 2008. 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.

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Steve Rohring, Airspace and Rules Group, Office of System Operations Airspace and AIM, Federal Aviation Administration, 800 Independence Avenue, SW., Washington, DC 20591; telephone: (202) 267-8783.

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On November 29, 2007, the FAA published in the Federal Register a notice of proposed rulemaking (72 FR 67588) to establish two low altitude Area Navigation (RNAV) routes, designated T-251 and T-272, in the St. Louis, MO, terminal area. Interested parties were invited to participate in this rulemaking effort by submitting written comments on the proposal. No comments were received objecting to the proposal.

Low altitude RNAV routes are published in paragraph 6011 of FAA Order 7400.9R signed August 15, 2007 and effective on September 15, 2007, which is incorporated by reference in 14 Start Printed Page 14681CFR 71.1. The low altitude RNAV routes 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 to establish two low altitude RNAV routes, T-251 and T-272, in the St. Louis, MO, terminal area. These T-routes for use by GPS/GNSS-equipped aircraft enhance safety and facilitate the more flexible and efficient use of the navigable airspace for en route IFR operations transitioning through and around the St. Louis Class B airspace area.

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. Therefore, this regulation: (1) Is not a “significant regulatory action” under Executive Order 12866; (2) is not a “significant rule” under Department of Transportation (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, 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 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 the 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 establishes low altitude Area Navigation routes (T-routes) at St. Louis, MO.

Environmental Review

The FAA has determined that this action qualifies for categorical exclusion under the National Environmental Policy Act in accordance with FAA Order 1050.1E, “Environmental Impacts: Policies and Procedures,” paragraph 311a, 311b, and 311k. This airspace action is not expected to cause any potentially significant environmental impacts, and no extraordinary circumstances exist that warrant preparation of an environmental assessment.

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List of Subjects in 14 CFR Part 71

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The Amendment

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In consideration of the foregoing, the Federal Aviation Administration amends

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

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

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2. The incorporation by reference in

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Paragraph 6011 United States Area Navigation Routes.

* * * * *
T-251 Farmington, MO to RIVRS, IL [New]
Farmington, Mo (Fam)Vortac(Lat. 37°40′24″ N., long. 90°14′03″ W.)
Foristell, Mo (Ftz)Vortac(Lat. 38°41′40″ N., long. 90°58′16″ W.)
Rivrs, IlInt(Lat. 39°25′21″ N., long. 90°55′57″ W.)
*         *         *         *         *         *         *
T-272 Hallsville, MO to Vandalia, IL [New]
Hallsville, Mo (Hlv)Vortac(Lat. 39°06′49″ N., long. 92°07′42″ W.)
Vandalia, Il (Vla)Vortac(Lat. 39°05′37″ N., long. 89°09′45″ W.)
* * * * *
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Issued in Washington, DC, on March 12, 2008.

Ellen Crum,

Acting Manager, Airspace and Rules Group.

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[FR Doc. E8-5370 Filed 3-18-08; 8:45 am]