FAR 52.202-1(b): “ When a solicitation provision or contract clause uses a word or term that is defined in the Federal Acquisition Regulation (FAR), the word or term has the same meaning as the definition in FAR 2.101, in effect at the time the solicitation was issued, unless the word or term is defined in FAR Part 31 or in the contract, in which case the word or term has the meaning set forth in FAR Part 31 or in the contract, except as provided in FAR 31.205-47”