The proposed Regulations Respecting the Reduction in the Release of Methane (Waste Sector) aim to reduce methane emissions from Canadian landfills by 50% below 2019 levels by 2030, contributing to Canada's climate change commitments. The regulations would require certain landfills to regularly monitor surface methane concentrations, detect and repair methane leaks, and optimize methane recovery through a performance-based approach that sets surface methane concentration limits.