Forces. Research, development, test and evaluation, air force For expenses necessary for basic and applied scientific research, development, test and evaluation, including maintenance, rehabilitation, lease, and operation of facilities and equipment, $40,939,500,000 (reduced by $10,000,000), to remain available for obligation until September 30, 2020. Research, development, test and evaluation, Defense-Wide (including transfer of funds) For expenses of activities and agencies of the Department of Defense (other than the military departments), necessary for basic and applied scientific research, development, test and evaluation