; (II) for each of calendar years 2026 through 2038, the percent determined under this clause for the preceding year increased by 1 percentage point; and (III) for calendar year 2039 and each year thereafter, 15 percent. . (b) Conforming amendment Clause (iv) of section 215(a)(1)(B) of the Social Security Act ( 42 U.S.C. 415(a)(1)(B) ), as redesignated by subsection (a), is amended by inserting (after the application of clause (iii), when applicable) after clause (ii) . 3. Computation of cost-of-living increases (a) In general Section 215(i)(1) of the Social Security Act ( 42 U.S.C. 415(i)(1) ) is amended by adding at the end the following new subparagraph: (H) the term Consumer Price Index means the Consumer Price Index for Elderly Consumers (CPI–E, as published by the Bureau of Labor Statistics of the Department of Labor). . (b) Application to pre-1979 law (1) In general Section 215(i)(1) of the Social Security Act as in effect in December 1978, and as applied in certain cases under the provisions of such Act as in effect after December 1978, is amended by adding at the end the following new subparagraph: (D) the term Consumer Price Index means the Consumer Price Index for Elderly Consumers (CPI–E, as published by the Bureau of Labor Statistics of the Department of Labor). . (2) Conforming change Section 215(i)(4) of the Social Security Act ( 42 U.S.C. 415(i)(4) ) is amended— (A) by striking and by section 9001 and inserting , section 9001