; and (B) redesignating subsections (g) and (i) as subsections (f) and (g), respectively. (2) Medicare description Section 1811(2) of the Social Security Act ( 42 U.S.C. 1395c(2) ) is amended by striking have been entitled for not less than 24 months and inserting are entitled . (3) Medicare coverage Section 1837(g)(1) of the Social Security Act ( 42 U.S.C. 1395p(g)(1) ) is amended by striking 25th month of and inserting month following the first month of . (4) Railroad retirement system Section 7(d)(2)(ii) of the Railroad Retirement Act of 1974 ( 45 U.S.C. 231f(d)(2)(ii) ) is amended— (A) by striking has been entitled to an annuity and inserting is entitled to an annuity ; (B) by striking , for not less than 24 months