Methane Emissions from Municipal Solid Waste Landfills Regulation Final Regulation Order: June 17, 2010 Categorías Programs Landfill Methane Regulation Tipo Legal Document California's Methane Emissions from Municipal Solid Waste Landfills Regulation was adopted by the California Air Resources Board (CARB) in 2010.For more information on the regulatory process, visit Landfill Methane Control Measure.