(a) The commissioner of natural resources shall implement this chapter.
(b) This chapter applies to state, federal, municipal, and private land and water subject to mining operations.
(c) Except as provided in AS 27.19.040(b), this chapter does not apply to an activity regulated under AS 27.21.
(d) This chapter does not alter or diminish the authority of another state agency, a state corporation, the University of Alaska, or a municipality under its laws and regulations.
(e) The owner of private land may establish requirements for reclamation in excess of those established by this chapter.
(f) The commissioner may not require a miner to reclaim under this chapter that portion of a previously mined area that was a part of a mining operation activity occurring before October 15, 1991.