§ 3982. Assignments to Foreign Service positions
(a)
Positions assignable; basis for assignment
(1)
The Secretary (with the concurrence of the agency concerned) may assign a member of the Service to any position classified under section
3981 of this title in which that member is eligible to serve (other than as chief of mission or ambassador at large), and may assign a member from one such position to another such position as the needs of the Service may require.
(b)
Filling of positions by members of Service; employment of members of State Department and other agencies
Positions designated as Foreign Service positions normally shall be filled by the assignment of members of the Service to those positions. Subject to that limitation—
(c)
Charge d’affaires
The President may assign a career member of the Service to serve as charge d’affaires or otherwise as the head of a mission (or as the head of a United States office abroad which is designated under section
3902
(a)(3) [1] of this title by the Secretary of State as diplomatic in nature) for such period as the public interest may require.
(d)
Competitive ability with respect to chief of mission positions and for assignments outside areas of specialization
The Secretary of State, in conjunction with the heads of the other agencies utilizing the Foreign Service personnel system, shall implement policies and procedures to insure that Foreign Service officers and members of the Senior Foreign Service of all agencies are able to compete for chief of mission positions and have opportunities on an equal basis to compete for assignments outside their areas of specialization.
[1] See References in Text note below.