Coal processing waste may be returned to underground mine workings only in accordance with the waste disposal program approved by the director and MSHA under 19.8.9.917 NMAC.
N.M. Admin. Code § 19.8.20.2045
Coal processing waste may be returned to underground mine workings only in accordance with the waste disposal program approved by the director and MSHA under 19.8.9.917 NMAC.
N.M. Admin. Code § 19.8.20.2045