https://www.acquisition.gov/far/part-19
(a) This part implements the acquisition-related sections of the Small Business Act ( 15 U.S.C. 631, et seq.), applicable sections of the Armed Services Procurement Act ( 10 U.S.C. 2302, et seq.), 41 U.S.C. 3104, and Executive Order 12138, May 18, 1979.It covers- (1) The determination that a concern is eligible for participation in the programs identified in this part;