N.M. Stat. Ann. § 69-25A-33
To encourage advances in mining and reclamation practices or to allow post-mining land use for industrial, commercial, residential or public use, including recreational facilities, the director may, with the approval by the secretary of the United States department of the interior, authorize departures in individual cases on an experimental basis from the environmental protection standards established under Sections 19 and 20 [69-25A-19 and 69-25A-20 NMSA 1978] of the Surface Mining Act. Such departures may be authorized if:
History: Laws 1979, ch. 291, § 33.