; and (B) any facility that was designated as a critical access hospital pursuant to a certification by a State under section 1820(c)(2)(B)(i)(III) may revert to the prospective payment model (or models) under which the facility received payment under title XVIII prior to being so designated. . II Rural Medicare beneficiary equity 201. Equalizing beneficiary copayments for services furnished by CAHs (a) In general Section 1866(a)(2)(A) of the Social Security Act ( 42 U.S.C. 1395cc(a)(2)(A) ) is amended by adding at the end the following: In the case of outpatient critical access hospital services for which payment is made under section 1834(g), clause (ii) of the first sentence shall be applied by substituting 20 percent of the lesser of the actual charge or the payment basis under this part for such services if the critical access hospital were treated as a hospital for 20 per centum of the reasonable charges for such items and services . . (b) Applicability The amendment made by this section applies with respect to services furnished during a year that begins more than 60 days after the date of the enactment of this Act. 202. Removing supervision of certified registered nurse anesthetists Section 1861(bb)(2) of the Social Security Act ( 42 U.S.C. 1395x(bb)(2) ) is amended— (1) in the second sentence, by inserting , but may not require that certified registered nurse anesthetists provide services under the supervision of a physician after certification of nurse anesthetists ; and (2) in the third sentence, by inserting under the supervision of an anesthesiologist after an anesthesiologist assistant . 203. CRNA services as a Medicaid-required benefit (a) In general Section 1905(a)(5) of the Social Security Act ( 42 U.S.C. 1396d(a)(5) ) is amended— (1) by striking and (B) and inserting (B)