1. Short title This Act may be cited as the Mainstreaming Addiction Treatment Act of 2019 . 2. Eliminating separate registration requirement for dispensing narcotic drugs in schedules III, IV, and V for maintenance or detoxification treatment (a) In general Section 303(g) of the Controlled Substances Act ( 21 U.S.C. 823(g) ) is amended— (1) by striking paragraph (2); (2) by striking (g)(1) Except as provided in paragraph (2), practitioners who dispense narcotic drugs to individuals for maintenance treatment or detoxification treatment and inserting (g) Practitioners who dispense narcotic drugs (other than narcotic drugs in schedule III, IV, or V) to individuals for maintenance treatment or detoxification treatment ; (3) by redesignating subparagraphs (A), (B), and (C) as paragraphs (1), (2), and (3), respectively; and (4) in paragraph (2), as redesignated, by redesignating clauses (i) and (ii) as subparagraphs (A) and (B), respectively. (b) Technical and conforming edits (1) Section 304 of the Controlled Substances Act ( 21 U.S.C. 824 ) is amended— (A) in subsection (a), by striking 303(g)(1) each place it appears and inserting 303(g) ; and (B) in subsection (d)(1), by striking 303(g)(1) and inserting 303(g) . (2) Section 309A(a) of the Controlled Substances Act ( 21 U.S.C. 829a(a) ) is amended by striking paragraph (2) and inserting the following: (2) the controlled substance— (A) is a narcotic drug in schedule III, IV, or V to be administered for the purpose of maintenance or detoxification treatment; and (B) is to be administered by injection or implantation