As used in this subpart
(1) agency means
(A) the Commission, and
(B) any other Executive agency or the Smithsonian Institution, to the extent of any election in effect under section
3652 (b) of this title;
(2) position means a civilian position in the Commission, or in any other agency if a substantial portion of the duties and responsibilities are performed in the Republic of Panama; and
(3) employee means an individual serving in a position.