88 STAT. ]
PUBLIC LAW 93-445-OCT. 16, 1974
1313
preceding five calendar years, whether or not consecutive, in each of , which years he will have earned wages or salary, except that, if an employee establishes that during the last fifteen consecutive calendar years he will have been engaged in another occupation in one-half or more of all the months in which he will have earned wages or salary, he may claim such other occupation as his regular occupation. "(3) Such satisfactory proof shall be made from time to time as prescribed by the Board, of the disability provided for in paragraph (iv) or (v) of subdivision (1) and of the continuance of such disability (according to the standards applied in the establishment of such disability) until the employee attains the age of sixty-five. If the individual fails to comply with the requirements prescribed by the Board as to proof of the continuance of the disability until he attains the age of sixty-five years, his right to an annuity by reason of such disability shall, except for good cause shown to the Board, cease, but without prejudice to his rights to any subsequent annuity to which he may be entitled. "(b)(1) An individual who— "(i) has attained age 60 and completed thirty years of service or attained age 65; " (ii) has completed twenty-five years of service; "(iii) is entitled to the payment of an annuity under subsection (a)(1); and "(iv) had a current connection with the railroad industry at the time such annuity began to accrue; shall, subject to the conditions set forth in subdivision (2) of this subsection and in subsections (e) and (h), be entitled to a supplemental annuity in the amount provided under section 3 of this Act: Provided, however, That in cases where an individual's annuity under subsection (a)(1) begins to accrue on other than the first day of the month, the amount of any supplemental annuity to which he is entitled for that month shall be reduced by one-thirtieth for each day with respect to which he is not entitled to an annuity under subsection (a)(1), "(2) No individual shall be entitled to a supplemental annuity provided by this subsection for any period after he renders any service as an employee for compensation after his supplemental annuity closing date, which is the last day of the month following the month in which he attains age 65: Provided, however, That the supplemental annuity closing date of an individual who attained age 65 prior to January 1, 1975, shall be determined under section 3(j)(4) of the Kailroad Eetirement Act of 1937: Provided further, That for ^^ use 228c. an employee whose supplemental annuity closing date occurs after he has completed at least 23 years of service but before he has completed 25 years of service and before he would have been entitled (upon filing an application therefor) to monthly insurance benefits under section 202(a) of the Social Security Act if he had no service as an 42 USC 402. employee under this Act, such closing date shall be extended to the earlier of (A) the day before the first day of the first month for which he would (on application) be entitled to monthly insurance benefits under section 202(a) of the Social Security Act if he had no service as an employee under this Act, or (B) the last day of the first month for which he qualifies for a supplemental annuity under this subsection. "(3) The provisions of subdivision (2) shall not supersede the provisions of any agreement reached through collective bargaining which provides for mandatory retirement at an age less than the applicable supplemental annuity closing date determined under such subdivision. " (c)(1) The spouse of an individual, if— "(i) such individual (A) is entitled to an annuity under subsection (a)(1) and (B) has attained the age of 60 and has com-
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