This part prescribes aviation security rules governing the following:

(a) The operation within the United States of each foreign air carrier holding a permit issued by the Department of Transportation under 49 U.S.C. 41302 or other appropriate authority issued by the former Civil Aeronautics Board or the Department of Transportation.

(b) Each law enforcement officer flying armed aboard an aircraft operated by a foreign air carrier described in paragraph (a) of this section.