; and (B) by redesignating subsection (z), as added by section 514(a) of the Medicare Access and CHIP Reauthorization Act of 2015 ( Public Law 114–10 ), as subsection (aa). (2) Conforming amendment Section 514(c)(1) of the Medicare Access and CHIP Reauthorization Act of 2015 ( Public Law 114–10 ) is amended by striking subsection (z) and inserting subsection (aa) . (b) Exception facilitating the development and operation of alternative payment models Section 1877(b) of the Social Security Act ( 42 U.S.C. 1395nn(b) ) is amended by adding at the end the following new paragraph: (6) Development and operation of alternative payment models (A) In general In the case of items and services furnished pursuant to an arrangement that meets the requirements described in subparagraph (B) entered into for the purpose of developing or operating a covered APM entity (as defined in section 1833(z)(5)(B)), including— (i) an advanced alternative payment model described in section 1833(z) (including a physician-focused payment model referred to in section 1868(c)); (ii) a MIPS APM (as defined by the Secretary)