(a) Authority of Director Nothing in this chapter shall be construed to alter, diminish, repeal, or supersede any authority conferred on the Director pursuant to section
1632 of this title, and section
2004a of title
42.
(b) Exempted lands and facilities This chapter shall not apply to open dump sites on Indian lands or Alaska Native lands
(1) that comprise an area of one-half acre or less and that are used by individual families on lands to which they hold legal or beneficial title;
(2) of any size that have been or are being operated for a profit; or
(3) where solid waste from an industrial process is being or has been routinely disposed of at a privately owned facility in compliance with applicable Federal laws.