; or (2) if the requirements of this section are not met by December 31 of such calendar year, provide, in writing, the reasons the requirements of this section were not met. (c) Sunset The requirements in subsection (a) shall terminate on December 31 of the calendar year specified in subsection (a). (d) Appropriate congressional committees defined In this section, the term appropriate congressional committees means— (1) the Committee on Armed Services of the House of Representatives; and (2) the Committee on Armed Services of the Senate. B Matters relating to other authorities of the Department of Defense 1221. Modification of authority for expenditure of funds for clandestine activities that support operational preparation of the environment and non-conventional assisted recovery capabilities (a) In general Section 127f of title 10, United States Code, is amended— (1) in the section heading, by adding at the end the following: and non-conventional assisted recovery capabilities ; (2) in subsection (a)— (A) by striking the first sentence and inserting the following: (1) Amounts appropriated or otherwise made available for the Department of Defense for operation and maintenance, Defense-wide, may be used for any purpose the Secretary of Defense determines to be proper— (A) for operational preparation of the environment for operations of a confidential nature; or (B) to establish, develop, and maintain non-conventional assisted recovery capabilities to facilitate the recovery of United States military and civilian personnel, or other individuals, who become isolated or separated. ; and (B) by striking Such a determination and inserting the following: (2) Such a determination