Senate committee substitute deletes the content of the 1st edition and replaces it with the following.

Directs for the Solid Waste Landfill Rules (Rules), defined as 15 identified administrative rules adopted by the Environmental Management Commission (Commission) on July 9, 2020, to become effective on the date the act becomes law, except that the Commission and the Department of Environmental Quality (DEQ) must implement the Rules pursuant to the act's four requirements, described as follows. Additionally requires the Commission to adopt rules to amend the Rules consistent with the described directives. 

Directs an owner or operator of a construction and demolition debris landfill facility (C&DLF) or a municipal solid waste landfill facility (MSWLF) to submit a written notice of intent to close the final unit, with a copy of the notice in the facility's operating record, to the Division of Waste Management (Division) 180 days prior to beginning closure of the final permitted land unit. Details notice requirements. Requires submission of changes to the closure plans to the Division as a permit modification. Prohibits requiring the owner and operator to submit a permit application for the Division to issue a permit for closure and post-closure care of a landfill, and directs the Division to issue a permit that incorporated the plans identified in the notice of closure. Provides for application of notice requirements and permit issuance based on actions taken before the date the act becomes law. Enumerates eleven components that must be included in an application for an amendment to a permit for a C&CDLF or MSWLF submitted solely for a change in ownership or corporate structure. Mandates elimination of all references to "interim maximum allowable concentrations" and "IMACs."

Changes the act's long title.