California Air Resources Board

This guidance document provides an overview of what the Landfill Methane Regulation (LMR or regulation) requires, compares the regulation to existing requirements for reducing emissions from municipal solid waste landfills, explains the process used to determine if a gas collection and control system is required to be installed or if modifications are required to comply with the regulation, and discusses the monitoring, recordkeeping and reporting requirements, and compliance schedule.  In addition, the document addresses various topics of concern raised by stakeholders and local air district staff concerning the implementation and enforcement of the regulatory requirements.  The document also includes example reporting forms to assist owners and operators in meeting the reporting requirements, and provides an overview of CARB’s Landfill Gas Tool, which was developed to assist landfill owners and operators in estimating their landfill’s gas heat input capacities and methane emissions.

This guidance document is provided by CARB to assist landfill owners and operators and air districts in complying with and enforcing the Methane Emissions from Municipal Solid Waste Landfills Regulation.  These guidance materials are provided solely for informational purposes to assist reporters in meeting the requirements of LMR, and do not and cannot create or vary any legal requirements of LMR.