Notwithstanding closure schedules previously established by rule, unlicensed and licensed open-municipal solid waste landfills that have not been closed must be closed in accordance with the schedule established by federal law or rule; state law or rule; schedules of compliance; consent agreements; enforcement orders; or license conditions. Those landfills must be closed in accordance with one of the following procedures. [1993, c. 732, Pt. C, §12 (NEW).]