Pub. L. 86-707, tit. II, pt. A, sec. 201

Sec. 201. Notwithstanding section 1765 of the Revised Statutes (5 U.S.C. 70), the allowances and differentials provided by this title are authorized for and may be granted only to an employee officially stationed in a foreign area unless otherwise provided in this title— (1) who is a citizen of the United States, and (2) whose rate of basic compensation is fixed by statute or, without taking into consideration the allowance and differentials provided by this title, is fixed by administrative action pursuant to law or is fixed administratively in conformity with rates paid by the Government for work of a comparable level of difficulty and responsibility in the continental United States, except that such allowances and differentials may be paid to an employee officially stationed in a foreign area who is not a citizen of the United States to the extent that the payment of such allowances and differentials to such noncitizen employee is authorized by any provision of law other than this title.