((a)) ** .—** The Secretary concerned may use one-step turn-key selection procedures for the purpose of entering into a contract for any of the following purposes:
((1)) The construction of an authorized military construction project.
((2)) A repair project (as defined in ) with an approved cost equal to or less than $4,000,000.
((3)) The construction of a facility as part of an authorized security assistance activity.
((b)) ** .—** In this section:
((1)) The term “one-step turn-key selection procedures” means procedures used for the selection of a contractor on the basis of price and other evaluation criteria to perform, in accordance with the provisions of a firm fixed-price contract, both the design and construction of a facility using performance specifications supplied by the Secretary concerned.
((2)) The term “security assistance activity” means—
((A)) humanitarian and civic assistance authorized by sections 401 and 2561 of this title;
((B)) foreign disaster assistance authorized by ;
((C)) foreign military construction sales authorized by section 29 of the Arms Export Control Act ();
((D)) foreign assistance authorized under sections 607 and 632 of the Foreign Assistance Act of 1961 (, 2392); and
((E)) other international security assistance specifically authorized by law.