The Legacy Law (the Law), establishes requirements and controls for legacy landfills and closed sanitary landfill facilities that accept new materials after closure in order to, for example, close a landfill that has not been previously closed, regrade a landfill for proper drainage, or prepare the landfill surface for redevelopment. In passing the Law, the Legislature intended to allow for the redevelopment of closed sanitary landfill facilities, encourage proper closure of legacy landfills in order that they may be redeveloped in the future, require municipal involvement in the redevelopment of legacy landfills and closed sanitary landfill facilities within the municipality, and provide various safeguards to protect against future problems at legacy landfills and closed sanitary landfill facilities that accept materials for closure or redevelopment.