CCI Archived Quantification Materials
The most recent quantification materials are posted at CCI Quantification, Benefits, and Reporting Materials and the most recent co-benefit quantification materials are posted at CCI Co-benefit Assessment Methodologies.
CARB staff periodically update methodologies to make them more robust, user-friendly, and appropriate to the projects being quantified. When updates are posted, previous versions remain available on this webpage.
Note: These quantification methods have been developed specifically for the Greenhouse Gas Reduction Fund programs and are not intended for use in other programs.
Archived Co-Benefit Assessment Methodology Quantification Materials
Dates of Use
Calculator Tool & User Guide
|October 26, 2018 – September 12, 2019||Updates energy and fuel prices with the latest available data.|
|January 17, 2019 – April 28, 2019||Updates program list to include new CCI programs and expands activity types included for new and existing programs.|
Archived QM Emission Factor Database and Documentation
The CCI Quantification Methodology Emission Factor Database and Documentation include emission factors used in CARB quantification methodologies released after August 30, 2017. When appropriate, CARB updates emission factors to incorporate the most recently available data. When updates are made, the previous versions of the CCI Quantification Methodology Emission Factor Database and Documentation remain available from this webpage.
Dates of Use
Database & Documentation Files
|June 24, 2019 – August 26, 2019||Updates vehicle air pollutant emission factors and associated tabs|
|May 16, 2019 – June 23, 2019||Updates fuel-specific greenhouse gas emission factors and associated tabs|
|March 12, 2019 – May 15, 2019||Updates fuel-specific greenhouse gas emission factors and associated tabs|
|February 5, 2019 – March 11, 2019||Updates fuel-specific greenhouse gas emission factors and associated tabs|
|December 12, 2018 – February 4, 2019||Updates grid electricity emission factors|
|November 30, 2018 – December 11, 2018||Updates fuel-specific greenhouse gas emission factors|
|November 7, 2018 – November 29, 2018||Updates fuel-specific greenhouse gas emission factors|
October 9, 2018 - November 6, 2018
Updates fuel-specific greenhouse gas emission factors
January 2, 2018 - October 8, 2018
Updates to select manure management greenhouse gas emission factors
August 30, 2017 - January 1, 2018
|Updates to select passenger auto greenhouse gas emission factors|