As used in this part, unless otherwise specified, the term—

((1)) “annuitant” means any individual, including a former participant or survivor, who meets all requirements for an annuity from the Fund under this chapter or any other Act and who has filed a claim for such annuity;

((2)) “child” means an individual—

((A)) who—

((i)) is an offspring or adopted child of the participant,

((ii)) is a stepchild or recognized natural child of the participant and who received more than one-half support from the participant, or

((iii)) lived with the participant, for whom a petition of adoption was filed by the participant, and who is adopted by the surviving spouse of the participant after the death of the participant;

((B)) who is unmarried; and

((C)) who—

((i)) is under the age of 18 years,

((ii)) is a student under the age of 22 years (for purposes of this clause, an individual whose 22d birthday occurs before July 1 or after August 31 of the calendar year in which that birthday occurs, and while the individual is a student, is deemed to become 22 years of age on the first July 1 which occurs after that birthday), or

((iii)) is incapable of self-support because of a physical or mental disability which was incurred before the individual reached the age of 18 years;

((3)) “court” means any court of any State, the District of Columbia, the Commonwealth of Puerto Rico, Guam, the Northern Mariana Islands, or the Virgin Islands, and any Indian court as defined by ;

((4)) “court order” means any court decree of divorce or annulment, or any court order or court approved property settlement agreement incident to any court decree of divorce or annulment;

((5)) “Foreign Service normal cost” means the level percentage of payroll required to be deposited in the Fund to meet the cost of benefits payable under the System (computed in accordance with generally accepted actuarial practice on an entry-age basis) less the value of retirement benefits earned under another retirement system for Government employees and less the cost of credit allowed for military and naval service;

((6)) “former spouse” means a former wife or husband of a participant or former participant who was married to such participant for not less than 10 years during periods of service by that participant which are creditable under ;

((7)) “Fund balance” means the sum of—

((A)) the investments of the Fund calculated at par value, plus

((B)) the cash balance of the Fund on the books of the Treasury;

((8)) “lump-sum credit” means the compulsory and special contributions to the credit of a participant or former participant in the Fund plus interest on such contributions at 4 percent a year compounded annually to , and after such date, for a participant who separates from the Service after completing at least 1 year of civilian service and before completing 5 years of such service, at the rate of 3 percent per year to the date of separation (except that interest shall not be paid for a fractional part of a month in the total service or on compulsory and special contributions from an annuitant for recall service or other service performed after the date of separation which forms the basis for annuity);

((9)) “military and naval service” means honorable active service—

((A)) in the Armed Forces of the United States,

((B)) in the Regular or Reserve Corps  of the Public Health Service after , or

((C)) as a commissioned officer of the National Oceanic and Atmospheric Administration, or a predecessor organization, after ,

((10)) “pro rata share”, in the case of any former spouse of any participant or former participant, means a percentage which is equal to the percentage that (A) the number of years during which the former spouse was married to the participant during the creditable service (creditable under part I or II) of that participant is of (B) the total number of years of such creditable service (creditable under part I or II);

((11)) “spousal agreement” means any written agreement between—

((A)) a participant or former participant; and

((B)) his or her spouse or former spouse;

((12)) “student” means a child regularly pursuing a full-time course of study or training in residence in a high school, trade school, technical or vocational institute, junior college, college, university, or comparable recognized educational institution (for purposes of this paragraph, a child who is a student shall not be deemed to have ceased to be a student during any period between school years, semesters, or terms if the period of nonattendance does not exceed 5 calendar months and if the child shows to the satisfaction of the Secretary of State that he or she has a bona fide intention of continuing to pursue his or her course of study during the school year, semester, or term immediately following such period);

((13)) “surviving spouse” means the surviving wife or husband of a participant or annuitant who was married to the participant or annuitant for at least 9 months immediately preceding his or her death or is a parent of a child born of the marriage, except that the requirement for at least 9 months of marriage shall be deemed satisfied in any case in which the participant or annuitant dies within the applicable 9-month period, if—

((A)) the death of such participant or annuitant was accidental; or

((B)) the surviving spouse of such individual had been previously married to the individual and subsequently divorced and the aggregate time married is at least 9 months;

((14)) “unfunded liability” means the estimated excess of the present value of all benefits payable from the Fund under this part over the sum of—

((A)) the present value of deductions to be withheld from the future basic salary of participants and of future agency contributions to be made on their behalf, plus

((B)) the present value of Government payments to the Fund under , plus

((C)) the Fund balance as of the date the unfunded liability is determined; and

((15)) “special agent” means an employee of the Department of State with a primary skill code of 2501—

((A)) the duties of whose position—

((i)) are primarily—

((I)) the investigation, apprehension, or detention of individuals suspected or convicted of offenses against the criminal laws of the United States; or

((II)) the protection of persons pursuant to against threats to personal safety; and

((ii)) are sufficiently rigorous that employment opportunities should be limited to young and physically vigorous individuals, as determined by the Secretary of State pursuant to ;

((B)) performing duties described in subparagraph (A) before, on, or after ; or

((C)) transferred directly to a position which is supervisory or administrative in nature after performing duties described in subparagraph (A) for at least 3 years.