DSP-CS-21描述了美国空军（USAF）和国防后勤局（DLA）的联合努力，将军用喷气推进剂（JP）燃料（MIL-DTL-83133规定的JP-8）转换为更容易获得的商用喷气燃料（ASTM D1655规定的jet a）。从军用燃料转换为商用燃料将提高军种和DLA的灵活性，以满足军事需求，同时每年为国防部节省数百万美元。

DSP-CS-21 describes a joint effort by the U.S. Air Force (USAF) and Defense Logistics Agency (DLA) Energy to convert from a military jet propellant (JP) fuel, JP-8, specified by MIL-DTL-83133, to the more readily available commercial jet fuel, Jet A, specified by ASTM D1655. The conversion from a military fuel to a commercial fuel will increase the agility of the services and DLA to meet military requirements while simultaneously saving DoD millions of dollars annually.