The Michigan Reclamation of Mining Lands Act, MCL section 425.181 et seq. as amended, but not to the extent that it regulates surface coal mining operations which affect two acres or less; or where less than 250 tons of coal are removed or intended to be removed for commercial use in one location; or where the extraction of coal is incidental to the extraction of other minerals and where coal does not exceed 162/3 per centum of the tonnage of minerals removed for purposes of commercial use or sale; or coal explorations subject to section 512 of the Act (30 U.S.C. 1262 ); or where the extraction of coal is an incidental part of Federal, State, or local government-financed highway or other construction.
30 C.F.R. §922.700