22 U.S.C. § 3985
Temporary details
A period of duty of not more than six months in duration by a member of the Service shall be considered a temporary detail and shall not be considered an assignment within the meaning of this subchapter.
( Pub. L. 96–465, title I, § 505 , Oct. 17, 1980 , 94 Stat. 2094 .)