WASHINGTON, Dec. 12 -- Federal Aviation Administration has issued a proposed rule called: Establishment of United States Area Navigation Route T-581 in the Vicinity of Missoula, Montana.

The proposed rule was published in the Federal Register on Dec. 12 by Alex W. Nelson, Acting Manager, Rules and Regulations Group.

Summary: This action proposes to establish United States Area Navigation (RNAV) Route T-581 in the vicinity of Missoula, Montana. The FAA is proposing this action to increase navigational flexibility and safety margins for the users and to expand Air Traffic Control operational capabilities.

For more information, contact Steven Roff, Rules and Regulations Group, Policy Directorate, Federal Aviation Administration, 600 Indepen...