48 CFR § 19.001 - Definitions.
As used in this part -
Concern means any business entity organized for profit (even if its ownership is in the hands of a nonprofit entity) with a place of business located in the United States or its outlying areas and that makes a significant contribution to the U.S. economy through payment of taxes and/or use of American products, material and/or labor, etc. “Concern” includes but is not limited to an individual, partnership, corporation, joint venture, association, or cooperative. For more information, see 13 CFR 121.105.
Fair market price means a price based on reasonable costs under normal competitive conditions and not on lowest possible cost (see 19.202-6).