The Railroad Retirement Act of 1974, referred to in subsec. (a)(1)(A), (B), is act Aug. 29, 1935, ch. 812, as amended generally by Pub. L. 93–445, title I, § 101, Oct. 16, 1974, 88 Stat. 1305, which is classified generally to subchapter IV (§ 231 et seq.) of chapter 9 of Title 45, Railroads. For further details and complete classification of this Act to the Code, see Codification note set out preceding section 231 of Title 45, section 231t of Title 45, and Tables.

2020—Subsec. (b)(2). Pub. L. 116–260 inserted “(except for eligibility for enrollment under part B solely for purposes of coverage of immunosuppressive drugs described in section 1395x(s)(2)(J) of this title)” before “, with the thirty-sixth month”.

2015—Subsec. (c). Pub. L. 114–74 struck out subsec. (c) relating to continuing eligibility of certain terminated individuals.

1994—Subsec. (c). Pub. L. 103–296 added subsec. (c) relating to continuing eligibility of certain terminated individuals.

1986—Subsec. (a)(1)(A)(ii), (B)(iii). Pub. L. 99–272 substituted “medicare qualified government employment” for “medicare qualified Federal employment”.

1983—Subsec. (a)(1)(B)(iii). Pub. L. 97–448 substituted “section 410(p)” for “410(p)” and struck out “after December 31, 1982,”.

1982—Subsec. (a)(1)(A). Pub. L. 97–248 designated existing provisions as cl. (i), substituted “within the meaning of the term ‘employment’ for purposes of this subchapter” for “in the term ‘employment’ as defined in this chapter”, and added cl. (ii).

Subsec. (a)(1)(B). Pub. L. 97–248 designated “is entitled to monthly insurance benefits under this subchapter” as cl. (i), substituted “(ii) is entitled to an annuity under the Railroad Retirement Act of 1974” for “or an annuity under the Railroad Retirement Act of 1974”, and added cl. (iii).

Subsec. (a)(1)(C), (D). Pub. L. 97–248 combined former subpars. (C) and (D) into subpar. (C) and substituted a reference to individuals described in subpar. (A) or (B) for a more detailed definition of such individuals.

Amendment by Pub. L. 103–296 applicable with respect to benefits based on disability (as defined in section 425(c)(9) of this title) which are otherwise payable in months beginning after 180 days after Aug. 15, 1994, with Secretary of Health and Human Services to issue regulations necessary to carry out such amendment not later than 180 days after Aug. 15, 1994, see section 201(a)(3)(E)(i) of Pub. L. 103–296, set out as an Effective Date of 1994 Amendment; Sunset Provision note under section 425 of this title.

Amendment by Pub. L. 99–272 effective after Mar. 31, 1986, with no individual to be considered under disability for any period beginning before Apr. 1, 1986, for purposes of hospital insurance benefits, see section 13205(d)(2) of Pub. L. 99–272, set out as a note under section 410 of this title.

Pub. L. 97–448, title III, § 309(c)(2), Jan. 12, 1983, 96 Stat. 2410, provided that: “Any amendment to the Social Security Act [42 U.S.C. 301 et seq.] made by this section [amending this section and sections 410, 1320c–2, 1320c–3, 1395d, 1395f, 1395r, 1395y, 1395cc, 1395mm, 1395ww, 1396b, 1396n, 1396o, and 1396p of this title] shall be effective as if it had been originally included as a part of that provision of the Social Security Act to which it relates, as such provision of such Act was amended or added by the Tax Equity and Fiscal Responsibility Act of 1982 [Pub. L. 97–248, Sept. 3, 1982, 96 Stat. 324].”

Amendment by Pub. L. 97–248 effective on and after Jan. 1, 1983, see section 278(c)(2)(A) of Pub. L. 97–248, set out as a note under section 426 of this title.

Section effective with respect to services, supplies, and equipment furnished after the third calendar month beginning after June 13, 1978, except that provisions for the implementation of an incentive reimbursement system for dialysis services furnished in facilities and providers to become effective with respect to a facility’s or provider’s first accounting period beginning after the last day of the twelfth month following the month of June 1978, and except that provisions for reimbursement rates for home dialysis to become effective on Apr. 1, 1979, see section 6 of Pub. L. 95–292, set out as an Effective Date of 1978 Amendment note under section 426 of this title.