There are several different sources of authority governing the operation of solid waste disposal facilities, including federal legislation and regulations as well as state law and its implementing rules. In addition to the Solid Waste Management Act, it is important to note the Solid Waste Disposal Act (T.C.A. §§ 68-211-101 through 68-211-121) as well as other relevant sections in Title 68. Furthermore, other governmental entities such as counties, municipalities, and boards of health may also adopt regulations governing solid waste disposal if their standards are at least as stringent as those set out by the state Department of Environment and Conservation and consistent with state and federal law. T.C.A. § 68-211-107.