Payments under this chapter may be made in advance or by way of reimbursement and in such installments as the Secretary may determine. ( Pub. L. 91–616, title VI, § 603 , formerly title V, § 503, Dec. 31, 1970 , 84 Stat. 1855 , renumbered Pub. L. 94–371, § 7 , July 26, 1976 , 90 Stat. 1038 .) Editorial Notes References in Text This chapter, referred to in text, was in the original “this Act”, meaning Pub. L. 91–616 , Dec. 31, 1970 , 84 Stat. 1848 , known as the Comprehensive Alcohol Abuse and Alcoholism Prevention, Treatment, and Rehabilitation Act of 1970. For complete classification of this Act to the Code, see Short Title note set out under section 4541 of this title and Tables. Codification Pub. L. 94–371, § 7 , July 26, 1976 , 90 Stat. 1038 , redesignated title V of Pub. L. 91–616 , which was classified to subchapter IV of this chapter, as title VI without renumbering the sections therein. Section 503 of Pub. L. 91–616 was renumbered 603, as the probable intent of Congress .