; (B) expand existing treatment centers; (C) hire treatment professionals; (D) provide training and education to substance abuse professionals, medical professionals, and educators related to the treatment of heroin, opioids, cocaine, methamphetamine, 3,4-methylene­dioxy­meth­am­phet­amine, and phen­cy­cli­dine abuse; and (E) engage in other activities that the Secretary has determined are relevant to the purpose of the grants under subsection (a) . (c) Authorization of appropriations There are authorized to be appropriated such sums as may be necessary to carry out this section for fiscal years 2019 through 2023. 514D. Heroin, opioids, cocaine, methamphetamine, ecstasy, and PCP abuse treatment vouchers for underserved populations (a) In general The Secretary may make grants to State, local, and tribal governments and nonprofit entities to provide vouchers to individuals in underserved populations for authorized services related to the treatment of such individuals for heroin, opioids, cocaine, methamphetamine, 3,4-methylene­dioxy­meth­am­phet­amine (ecstasy), and phen­cy­cli­dine (PCP) abuse. (b) Requirements (1) Application To seek a grant under subsection (a) , a State, local, or tribal government or a nonprofit entity shall submit an application to the Secretary at such time, in such manner, and containing such information and assurances as the Secretary may require, including a description of the method that such State, government, or entity will use— (A) to identify individuals who would benefit from treatment for heroin, opioids, cocaine, methamphetamine, 3,4-methylene­dioxy­meth­am­phet­amine, or phen­cy­cli­dine abuse; (B) to identify if such individuals are in underserved populations