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United States Department of Transportation United States Department of Transportation

Advisory Circulars (ACs)

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Advisory Circulars (ACs) search results
Number Title Status Office Date
20-24D Approval of Propulsion Fuels, Additives, and Lubricating Oils

It also provides guidance on fuel and lubricating oil specifications and standards, and on propulsion fuel and/or lubricating oil certification plans.

Active AIR-20 2014-06-30