Use the clause at 252.225-7062, Restriction on Acquisition of Large Medium-Speed Diesel Engines, in solicitations and contracts that exceed the simplified acquisition threshold, including solicitations and contracts using FAR part 12 procedures for the acquisition of commercial products and commercial services, that require large medium-speed diesel engines for new construction of auxiliary ships using funds available for National Defense Sealift Fund programs or Shipbuilding and Conversion, Navy unless—

(a) An exception at 225.7010-2(b)(2) applies; or

(b) A waiver has been granted.