; or (B) section 31 of such Act ( 15 U.S.C. 657a ). (4) Contracts awarded pursuant to any other contracting preference for small business concerns. (f) Definitions In this section: (1) The term small business concern has the meaning given under section 3 of the Small Business Act ( 15 U.S.C. 632 ). (2) The terms service-disabled veteran , small business concern owned and controlled by veterans , and small business concern owned and controlled by service-disabled veterans have the meanings given, respectively, under section 3(q) of the Small Business Act ( 15 U.S.C. 632(q) ). .