; and (2) to prepare for or defend against impeachment. 547. (a) None of the funds appropriated or otherwise made available by this Act may be made available to be used to purchase, maintain, or continue to operate any Unmanned Aircraft Systems that are manufactured in the People’s Republic of China or a country identified as a foreign adversary in the Annual Threat Assessment of the U.S. Intelligence Community or by an entity domiciled in the People’s Republic of China or a country identified as a foreign adversary in the most recent Annual Threat Assessment of the U.S. Intelligence Community. (b) Nothing in subsection (a) shall limit the use of funds for counterintelligence, research and development, test and evaluation, or counter Unmanned Aircraft System mitigation efforts, including the activities of the Coast Guard authorized by section 8414 of Public Law 116–283 ( 14 U.S.C. 1156 note). 548. (a) Section 538 of the Department of Homeland Security Appropriations Act, 2022 (division F of Public Law 117–103 ) is amended— (1) in subsection (b), by striking “may” and inserting “shall”