; and (3) section 425.609(c)(3)(i)(A) of title 42, Code of Federal Regulations, or a successor regulation, to provide that the cap described in such section references no less than 5 percent, and any negative adjustments, if applicable, in prospective HCC risk scores (as applied for purposes of such section) shall be between 0 and negative 5 percent. (c) Removing barriers to shared savings program participation Prior to the beginning of the first performance year (as defined for purposes of subsection (a)) that begins after the date of the enactment of this Act, the Secretary of Health and Human Services shall revise part 425 of title 42, Code of Federal Regulations, or any successor regulation, to— (1) eliminate any distinction in requirements in such part between a low revenue ACO and a high revenue ACO (as such terms are defined in section 425.20 of title 42, Code of Federal Regulations, or a successor regulation) and, with respect to such a low revenue ACO or high revenue ACO and except as otherwise modified in this Act, apply the requirements of such part as such requirements applied to low revenue ACOs on July 1, 2019, except that the Secretary of Health and Human Services may, if the Secretary determines appropriate, apply less stringent requirements than those requirements that applied to low revenue ACOs as of such date