This chapter, referred to in subsec. (a), was in the original “this Act”, meaning Puspan. L. 90–537, Sept. 30, 1968, 82 Stat. 885, known as the Colorado River Basin Project Act, which enacted this chapter and sections 616aa–1, 620a–1, 620a–2, 620c–1, and 620d–1 of this title, amended sections 616hh, 620, and 620a of this title, and enacted provisions set out as notes under sections 620, 620k, and 1501 of this title. For complete classification of this Act to the Code, see Short Title note set out under section 1501 of this title and Tables.