For the purposes of this subsection—

(1) Any participant may be retired under the conditions specified in section 4051 of this title and shall be retired under the conditions specified in sections 4052 and 4053 of this title and receive benefits under this part.

For the purposes of this subsection—

(A) the term “participant”, as used in the sections referred to in paragraph (1), means a participant in the Foreign Service Pension System; and

(B) the term “System”, as used in those sections, means the Foreign Service Pension System.

(3) For purposes of any annuity computation under this subsection, the average pay (as used in section 8414 [1] of title 5) of any member of the Service whose official duty station is outside the continental United States shall be considered to be the salary that would have been paid to the member had the member’s official duty station been Washington, D.C., including locality-based comparability payments under section 5304 of title 5 that would have been payable to the member if the member’s official duty station had been Washington, D.C.

An annuity under paragraph (1) shall be computed—

(1) Any participant who retires voluntarily or mandatorily under section 4007, 4008, 4010a, 4051, 4052, or 4053 of this title under conditions authorizing an immediate annuity for participants in the Foreign Service Retirement and Disability System or for participants in the Foreign Service Pension System, and who has completed at least 5 years as a member of the Foreign Service, shall be entitled to an immediate annuity computed under paragraph (2).

An annuity under paragraph (1) shall be computed—

(A) in accordance with section 8415(e)(1) of title 5 for all service while a participant in this System and for prior service creditable under this part not otherwise counted as— (i) a member of the Service, (ii) an employee of the Central Intelligence Agency entitled to retirement credit under title II of the Central Intelligence Agency Retirement Act (50 U.S.C. 2011 et seq.) or under section 302(a) or 303(b) of that Act (50 U.S.C. 2152(a), 2153(b)), or (iii) a participant as a Member of Congress, a congressional employee, law enforcement officer, firefighter, or air traffic controller in the Civil Service Retirement System under subchapter III of chapter 83, title 5, or in the Federal Employees’ Retirement System under chapter 84 of title 5; and

(B) at the rate stated in section 8415(a) of title 5 for all other service creditable under this System including service in excess of 20 years otherwise creditable under paragraph (A).

(3) Any participant who is involuntarily retired or separated under section 4007, 4008, 4010, or 4010a of this title and who would if a participant under part I, become eligible for a refund of contributions or a deferred annuity under part I, shall, in lieu thereof, receive benefits for an involuntary separation under this part.

(4) A disability annuity under this part required to be redetermined under section 8452(b) of title 5, or computed under section 8452(c) or (d) of such title 5, shall be recomputed or computed using the formula in subsection (b)(2)(A) of this section rather than section 8415 of such title 5 (as stated in section 8452(b)(2)(A) and 8452(c) and (d) of such title). Such annuity shall also be computed in accordance with the preceding sentence if, as of the day on which such annuity commences or is restored, the annuitant satisfies the age and service requirements for entitlement to an immediate annuity under section 4051 of this title.

(5) A former participant entitled to a deferred annuity under section 8413(b) of title 5 shall not be subject to section 8415(g)(1) of such title 5 if the former participant has 20 years of service creditable under this part and is at least 50 years of age as of the date on which the annuity is to commence.

The amount of a survivor annuity for a widow or widower of a participant or former participant shall be 50 percent of an annuity computed for the deceased under this part rather than under section 8415 of such title 5 (as stated in sections 8442(a)(1), (b)(1)(B), and (c)(2) of such title).

(A) The amount of a survivor annuity for a widow or widower of a participant or former participant shall be 50 percent of an annuity computed for the deceased under this part rather than under section 8415 of such title 5 (as stated in sections 8442(a)(1), (b)(1)(B), and (c)(2) of such title).

(B) Any calculation for a widow or widower of a participant or former participant under section 8442(f)(2)(A) shall be based on an “assumed FSRDS annuity” rather than an “assumed CSRS annuity” as stated in such section. For the purpose of this subparagraph, the term “assumed FSRDS annuity” means the amount of the survivor annuity to which the widow or widower would be entitled under part I based on the service of the deceased annuitant determined under section 8442(f)(5) of such title 5.

A participant who is entitled to an immediate annuity under subsection (b) shall be entitled to receive an annuity supplement while the annuitant is under 62 years of age. The annuity supplement shall be based on the total creditable service of the annuitant and shall be computed in accordance with sections 8421(b) and 8421a of title 5 as if the participant were a law enforcement officer retired under section 8412(d) of such title.

Any participant who is separated for cause under section 4010 of this title shall not be entitled to an annuity under this System when the Secretary determines that the separation was based in whole or in part on disloyalty to the United States.

(Pub. L. 96–465, title I, § 855, as added Pub. L. 99–335, title IV, § 415, June 6, 1986, 100 Stat. 617; amended Pub. L. 99–556, title IV, § 406, Oct. 27, 1986, 100 Stat. 3138; Pub. L. 103–178, title II, § 204(b)(3), Dec. 3, 1993, 107 Stat. 2033; Pub. L. 105–277, div. G, subdiv. B, title XXIII, § 2312(b), Oct. 21, 1998, 112 Stat. 2681–827; Pub. L. 105–382, § 2(d)(3)(B), Nov. 13, 1998, 112 Stat. 3408; Pub. L. 107–228, div. A, title III, § 322(b)(1), Sept. 30, 2002, 116 Stat. 1384; Pub. L. 112–96, title V, § 5001(c)(2)(F), Feb. 22, 2012, 126 Stat. 200.)