15 C.F.R. § 781.3
The Additional Protocol Regulations or APR implement certain obligations of the United States under the Protocol Additional to the Agreement Between the United States of America and the International Atomic Energy Agency Concerning the Application of Safeguards in the United States of America, known as the Additional Protocol.
(a) Persons and locations subject to the APR. The APR, promulgated by the Department of Commerce, shall apply to all persons and locations in the United States, except:
(2) The following United States Government locations (see definition in § 781.1 of the APR):