Biogas and biomethane.

(1) The California Global Warming Solutions Act of 2006 establishes the State Air Resources Board as the state agency responsible for monitoring and regulating sources emitting greenhouse gases. The act requires the state board to adopt regulations to require the reporting and verification of statewide greenhouse gas emissions and to monitor and enforce compliance with this program. The act requires the state board to adopt a statewide greenhouse gas emissions limit, as defined, to be achieved by 2020 equivalent to the statewide greenhouse gas emissions level in 1990. Existing law requires the state board to complete a comprehensive strategy to reduce emissions of short-lived climate pollutants, as defined, in the state. This bill would require the state board to consider and, as appropriate, adopt policies to significantly increase the sustainable production and use of biogas, as defined, and, in so doing, would require the state board, among other things, to ensure the production and use of biogas provides direct environmental benefits and identify barriers to the rapid development and use of biogas and potential sources of funding. The bill would require the state board to develop and adopt a life-cycle accounting method for greenhouse gases and emissions of short-lived climate pollutants associated with biogas produced from forest biomass, as specified. (2) Existing law requires the Office of Environmental Health Hazard Assessment, in consultation with the state board, the Department of Toxic Substances Control, the Department of Resources Recycling and Recovery, and the California Environmental Protection Agency, to compile a list of constituents of concern that could pose risks to human health and that are found in biogas, as defined, at concentrations that significantly exceed the concentrations of those constituents in natural gas. Existing law requires the office to determine the health protective levels for that list, as specified, and requires the state board to identify realistic exposure scenarios and the health risks associated with those scenarios, as specified. Existing law requires the Public Utilities Commission to adopt, by rule or order, standards for biomethane, as defined, that specify the concentrations of constituents of concern that are reasonably necessary to protect public health and ensure pipeline integrity and safety, as specified, and requirements for monitoring, testing, reporting, and recordkeeping, as specified. Existing law requires a gas corporation to comply with those standards and requirements and requires the commission to require gas corporation tariffs to condition access to common carrier pipelines on the applicable customer meeting those standards and requirements. This bill would revise the definitions of biogas and biomethane for these purposes.