42 USC 7610 - Other authority

(a) Authority and responsibilities under other laws not affected 
Except as provided in subsection (b) of this section, this chapter shall not be construed as superseding or limiting the authorities and responsibilities, under any other provision of law, of the Administrator or any other Federal officer, department, or agency.
(b) Nonduplication of appropriations 
No appropriation shall be authorized or made under section 241, 243, or 246 of this title for any fiscal year after the fiscal year ending June 30, 1964, for any purpose for which appropriations may be made under authority of this chapter.