(a) Officers and employees to whom rules apply Notwithstanding any provision of chapter
83 of title
5, the annuity under subchapter III of such chapter of an officer or employee of the Central Intelligence Agency who retires on or after October 1, 1989, is not designated under section
2013 of this title, and has served abroad as an officer or employee of the Agency on or after January 1, 1987, shall be computed as provided in subsection (b) of this section.
(b) Computation rules
(1) The portion of the annuity relating to such service abroad that is actually performed at any time during the officers or employees first ten years of total service shall be computed at the rate and using the percent of average pay specified in section
8339 (a)(3) of title
5 that is normally applicable only to so much of an employees total service as exceeds ten years.
(2) The portion of the annuity relating to service abroad as described in subsection (a) of this section but that is actually performed at any time after the officers or employees first ten years of total service shall be computed as provided in section
8339 (a)(3) of title
5; but, in addition, the officer or employee shall be deemed for annuity computation purposes to have actually performed an equivalent period of service abroad during his or her first ten years of total service, and in calculating the portion of the officers or employees annuity for his or her first ten years of total service, the computation rate and percent of average pay specified in paragraph (1) shall also be applied to the period of such deemed or equivalent service abroad.
(3) The portion of the annuity relating to other service by an officer or employee as described in subsection (a) of this section shall be computed as provided in the provisions of section
8339 (a) of title
5 that would otherwise be applicable to such service.
(4) For purposes of this subsection, the term total service has the meaning given such term under chapter
83 of title
5.