The MRL Overlay District or MRLOD shall be an overlay district that overlies the prior existing underlying zoning designation. All parcels in the rural areas proposed for an MRLOD are required to submit an application for a Comprehensive Plan amendment, which will be reviewed by the Planning Commission and County Commissioners as outlined in CCC 31.08.320. Only the rules of this chapter and CCC 33.07.045 apply to land designated as MRLOD. This section does not alter, revise or repeal any federal or State law or regulation applicable to either the operation of a surface mine or an application seeking to operate a surface mine.