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 Except as otherwise specified by law, all periods of civilian and military and naval service, and all other periods through the date of final separation of a participant from the Service that the Secretary of State determines would be creditable toward retirement under the Civil Service Retirement and Disability System (as determined in accordance with

The service of an individual who first became a participant on or after October 17, 1983, with credit under this section for civilian service performed prior to October 1982, shall include credit for each period of military or naval service performed before the date of the separation on which the entitlement to an annuity under this part is based, subject, in the case of military or naval service performed after December 1956, to subsection (j).

The service of an individual who first became a participant before October 17, 1983, shall include credit for each period of military or naval service performed before the date of the separation on which the entitlement to an annuity under this part is based, subject, in the case of military or naval service performed after December 1976, to subsection (j).

A participant who enters on approved leave without pay to serve as a full-time officer or employee of an organization composed primarily of Government employees may, within 60 days after entering on that leave without pay, file with the employing agency an election to receive full retirement credit for such periods of leave without pay and arrange to pay concurrently into the Fund through the employing agency, amounts equal to the retirement deductions and agency contributions on the Foreign Service salary rate that would be applicable if the participant were in a pay status. If the election and all payments provided by this subsection are not made for the periods of such leave without pay occurring after November 7, 1976, the participant may not receive any credit for such periods of leave without pay occurring after such date.

A participant may make a special contribution for any period or periods of approved leave without pay while serving before November 7, 1976, as a full-time officer or employee of an organization composed primarily of Government employees. Any such contribution shall be based upon the suspended Foreign Service salary rate and shall be computed in accordance with section 4045 of this title. A participant who makes such contributions shall be allowed full retirement credit for the period or periods of leave without pay. If this contribution is not made, up to 6 months’ retirement credit shall be allowed for such periods of leave without pay each calendar year.

the right to any annuity under the other system which is based on such service is waived, and

a special contribution is made under section 4045 of this title covering such service.

An annuity or survivor annuity based on the service of a participant of Japanese ancestry who would be eligible under section 8332(l) of title 5, for credit for civilian service for periods of internment during World War II shall, upon application to the Secretary of State, be recomputed to give credit for that service. Any such recomputation of an annuity shall apply with respect to months beginning more than 30 days after the date on which application for such recomputation is received by the Secretary of State.

The Secretary of State shall take such action as may be necessary and appropriate to inform individuals entitled to have any service credited or annuity recomputed under this subsection of their entitlement to such credit or recomputation.

The Secretary of State shall, on request, assist any individual referred to in paragraph (1) in obtaining from any agency or other Government establishment information necessary to verify the entitlement of the individual to have any service credited or any annuity recomputed under this subsection.

Any agency or other Government establishment shall, upon request, furnish to the Secretary of State any information it possesses with respect to the internment or other detention, as described in section 8332(l) of title 5, of any participant.

A former spouse shall not be considered as married to a participant for periods assumed to be creditable service under section 4048(a) of this title or section 4049(e) of this title.

Except as otherwise provided by statute or Executive Order, section 8332(j) of title 5, relating to redetermination of credit for military and naval service, shall be applied to annuities payable under this part. The Secretary of State shall redetermine service, and may request and obtain information from the Secretary of Health and Human Services, as the Office of Personnel Management is directed or authorized to do in section 8332(j).