; and (B) the Committees on Armed Services, Foreign Relations, and Commerce, Science, and Transportation of the Senate. (2) Covered logistics platform The term covered logistics platform has the meaning given in section 50309 of title 46, United States Code, as added by this section. (3) Foreign adversary The term foreign adversary means— (A) the People’s Republic of China, including the Hong Kong and Macau Special Administrative Regions; (B) the Republic of Cuba; (C) the Islamic Republic of Iran; (D) the Democratic People’s Republic of Korea; (E) the Russian Federation; and (F) the Bolivarian Republic of Venezuela under the regime of Nicolás Maduro Moros. 826. Modification of contracts and options to provide economic price adjustments (a) Authority Amounts authorized to be appropriated by this Act for the Department of Defense may be used to modify the terms and conditions of a contract or option to provide an economic price adjustment consistent with sections 16.203–1 and 16.203–2 of the Federal Acquisition Regulation during the relevant period of performance for that contract or option and as specified in section 16.203–3 of the Federal Acquisition Regulation, to the extent and in such amounts as specifically provided in advance in appropriations Acts for the purposes of this section. (b) Guidance Not later than 30 days after the date of the enactment of this Act, the Under Secretary of Defense for Acquisition and Sustainment shall issue guidance implementing the authority under this section. 827. Modifications to earned value management system requirements (a) In general Not later than 180 days after the date of the enactment of this Act, the Department of Defense Supplement to the Federal Acquisition Regulation shall be revised to— (1) exempt all software contracts and subcontracts of the Department of Defense from earned value management system requirements