; or (dd) 275 if the practitioner meets the requirements specified in section 8.610 of title 42, Code of Federal Regulations (or successor regulations). . (b) Eliminating any time limitation for nurse practitioners, clinical nurse specialists, certified registered nurse anesthetists, certified nurse midwives, and physician assistants To become qualifying practitioners Section 303(g)(2)(G)(iii)(II) of the Controlled Substances Act ( 21 U.S.C. 823(g)(2)(G)(iii)(II) ) is amended by striking during the period beginning on the date of enactment of the Comprehensive Addiction and Recovery Act of 2016 and ending on October 1, 2021 and inserting beginning on the date of enactment of the Comprehensive Addiction and Recovery Act of 2016 . (c) Definition of qualifying other practitioner Clause (iv) of section 303(g)(2)(G) of the Controlled Substances Act ( 21 U.S.C. 823(g)(2)(G) ) is amended by striking nurse practitioner or physician assistant each place it appears and inserting nurse practitioner, clinical nurse specialist, certified registered nurse anesthetist, certified nurse midwife, or physician assistant . 302. Coverage of methadone under Medicare part B (a) Coverage Section 1861(s)(2) of the Social Security Act ( 42 U.S.C. 1395x(s)(2) ) is amended— (1) by striking and at the end of subparagraph (FF); (2) by adding and at the end of subparagraph (GG); and (3) by inserting after subparagraph (GG) the following new subparagraph: (HH) methadone, if furnished or dispensed (including by prescription) in an oral form on or after January 1, 2018, to an individual for the purpose of maintenance or detoxification treatment by a physician or other practitioner who has in effect a registration or waiver under section 303(g) of such Act ( 21 U.S.C. 823(g) ) to dispense methadone for such purpose