SCS Engineers provides guidance in its technical bulletin, LANDFILL METHANE REGULATION (LMR) UNDER CALIFORNIA AIR RESOURCES BOARD (CARB), which finalizes significant amendments to the Landfill Methane Regulation (LMR). The final LMR introduces substantial changes to the requirements for landfill gas (LFG) monitoring, control, and reporting. These revisions expand regulatory applicability, tighten operational thresholds, impose new monitoring requirements and technologies, and accelerate compliance timelines.
These changes require landfill operators to proactively reassess their infrastructure, monitoring programs, and compliance strategies. Landfill owners are recommended to complete a gap analysis of their landfill against the new standards before the rule takes effect on January 1, 2027. This gap analysis document outlines the operational and technological changes that California landfill operators must make to meet the upcoming January 2027 Landfill Methane Regulation (LMR) deadline. It helps operators at specific landfills determine and prioritize team responsibilities, budget allocation, milestones, and final deadlines.
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