California Air Resources Board

Administering agencies must use the Funding Guidelines with the resources provided on this page to develop effective programs and demonstrate compliance with program requirements.1  Resources on this page include Quantification Methodologies and Calculator Tools for estimating greenhouse gas (GHG) emission reductions and co-benefits; Benefit Criteria Tables for determining benefits to priority populations; and Reporting Templates for reporting outcomes. Select a project type and use the resources from that row as needed.2  

An asterisk (*) and bold text indicates a document is open for comment. To comment or send questions, please contact the GGRF Program.

To request a copy of previous versions of the Quantification Methodologies and Calculator Tools, please contact the GGRF Program.

CARB strives to ensure all web content is accessible to all users. If you experience any difficulty accessing information or require an alternative format, please contact the GGRF Program.

Note: These quantification methods have been developed specifically for the Greenhouse Gas Reduction Fund programs and are not intended for use in other programs.

Transportation and Sustainable Communities

Clean Energy and Energy Efficiency

Natural Resources and Waste Diversion

Cross-Sectoral Projects

Emission Factor Database

In an effort to increase transparency and continue to use the most up to date emission factors when estimating California Climate Investments project benefits, CARB released a single repository for GHG and co-benefit emission factors used in quantification methodologies.  The California Climate Investments Quantification Methodology Emission Factor Database and Documentation below include emission factors used in CARB quantification methodologies released after August 30, 2017.  CARB will add emission factors and documentation applicable to California Climate Investments programs as new methodologies become available.

• California Climate Investments Quantification Methodology Emission Factor Database
• California Climate Investments Quantification Methodology Emission Factor Database Documentation
  • Appendix A: Sustainable Communities and Clean Transportation
  • Appendix B: Energy Efficiency and Clean Energy
  • Appendix C: Natural Resources and Waste Diversion

To request a copy of previous versions of the Emission Factor Database, contact us at  GGRFProgram@arb.ca.gov.

Co-benefit Assessment Methodologies

In addition to GHG emission reductions, quantification methodologies are being developed to also estimate other benefits and key variables.  CARB continues to develop methods to assess additional social, economic, and environmental co-benefits achieved by California Climate Investments projects. For more information on co-benefits, including draft assessment methods, visit co-benefits.

• 1CARB is required to develop guidance to agencies administering California Climate Investments. The resources on this page were developed in consultation with administering agencies through a public process. More information on co-benefits can be found at: www.arb.ca.gov/cci-cobenefits.
• 2The materials in the table are grouped in sectors: Transportation and Sustainable Communities, Clean Energy and Energy Efficiency, Natural Resources and Waste Diversion, and Cross-Sectoral projects. A single California Climate Investments program may fund one or more project type. Please contact CARB for assistance in identifying the correct materials.
• 3SB 1119 deems specific project types to have met all applicable requirements for benefiting priority populations per AB 1550. See SB 1119 for more information.
• 4Benefits for priority populations are based on the HSR current Business Plan and Sustainability Report.
• 5The TCC program may fund multiple project types. Each funded project should be evaluated and reported using the materials (quantification methodology, benefit criteria, and reporting requirements) applicable to that project type.