1395l(t)(9)(A) ) is amended by inserting and suppliers subject to the prospective payment system (including at least one ambulatory surgical center representative) after an appropriate selection of representatives of providers . (b) Effective date The amendment made by subsection (a) shall take effect on the date of the enactment of this Act. 5. Reasons for excluding additional procedures from ASC approved list (a) In general Section 1833(i)(1) of the Social Security Act ( 42 U.S.C. 1395l(i)(1) ) is amended by adding at the end the following: In updating such lists for application in years beginning after the date of the enactment of this sentence, for each procedure that was requested to be included in such lists during the public comment period but which the Secretary does not propose (in the final rule updating such lists) to so include in such lists, the Secretary shall cite in such final rule the specific criteria in paragraph (b) or (c) of section 416.166 of title 42, Code of Federal Regulations, based on which the procedure was excluded. If paragraph (b) of such section is cited for exclusion of a procedure, the Secretary shall identify the peer reviewed research or the evidence upon which such determination is based. The Secretary may not use or cite section 416.166(c)(7) of such title as criteria or a basis for exclusion of a procedure from such lists. . (b) Effective date The amendment made by subsection (a) shall apply to lists of ambulatory surgery procedures for application in years beginning after the date of the enactment of this Act.