After an MSW landfill is closed, the facility is maintained and monitored for a minimum of 30 years. Financial assurance is required. If at any time someone desires to disturb the landfill (e.g. build a road, install utility lines, put in ball fields), the director must first give his authorization to do so. To construct and operate an MSW landfill, various authorizations are required. From the solid waste program, the owner or operator must obtain a permit to install (PTI), issued by Ohio EPA to construct the landfill. Every year, the owner or operator must obtain a license issued by the licensing authority (either the health department or Ohio EPA).