National Route Program.
Series: Advisory circular -- AC no. 90-91.
Publisher: U.S. Dept. of Transportation, Federal Aviation Administration
Published: 1992
Place of publication: [Washington, D.C. (800 Independence Ave., S.W., Washington 20591)]
Language: eng
Subjects: Airways -- United States.; Airlines -- United States -- Energy conservation.
Notes: Caption title.

Cancels Advisory circular no. 90-82B, dated June 29, 1990, Direct routes in the conterminous United States, and Advisory circular no. 90-90, dated Dec. 6, 1990, Transcontinental selected fuel conservation routes.

Shipping list no.: 92-0348-P.

"Date: 4/24/92."