48 C.F.R. § 25.301-4
Insert the clause at 52.225-19, Contractor Personnel in a Designated Operational Area or Supporting a Diplomatic or Consular Mission outside the United States, in solicitations and contracts, other than personal service contracts with individuals, that will require contractor personnel to perform outside the United States—
(a) In a designated operational area during—
(b) When supporting a diplomatic or consular mission—
[73 FR 10957, Feb. 28, 2008, as amended at 85 FR 27101, May 6, 2020]