How to Find and Receive Documents and Updates

CPUC organizes much of our decision-making in public proceedings. Any person may be on the information only section of a “service list” for a proceeding, and that person will stay informed about developments in the proceeding by receiving e-mails with documents sent by the CPUC and parties participating to the proceeding, as well as by receiving notices of workshops or other events related to the proceeding.

To add yourself to a service list, email and include the proceeding number, your name, title, organization, address, phone number, and e-mail (Proceeding numbers are listed in the table below). If you would like to become an official party to a proceeding, you can find more information from CPUC's service list website. The CPUC's Public Advisor's Office provides procedural information and advice to individuals and groups who want to formally participate in proceedings as a party.

CPUC Actions to Date

The table below lists CPUC proceedings and actions related to the Cap-and-Trade Program, including decisions on how investor-owned utilities must use Cap-and-Trade funds, how greenhouse gas (GHG) costs can be handled, and how costs and proceeds must be reported.

The full docket card for each proceeding can be accessed through the CPUC docket card search tool. Enter the proceeding number without any periods or dashes to search. The docket card includes filings from parties with information and arguments that informed the decision. Besides using the links below, final decisions can also be located on the CPUC website using this decision search tool.

CPUC Cap-and-Trade Proceedings Table

The table below summarizes CPUC Cap-and-Trade Program related proceedings.

The CPUC numbering system contains information that may help you locate a document. The first two sets of numbers indicate the year and month of the CPUC action, while the last three digits are a numerical index number. For example, R.20-05-002 means that it was the second (002) rulemaking (R) the CPUC started in May (05) of 2020 (20). For reference, R = Rulemaking; A = Application; and D= Decision.




R.06-04-009 (Closed): Coordinates GHG emission reduction policies and associated implementation steps for utility energy procurement.


Program Impact


Attachment A

Attachment B

  • Supplied CARB with CPUC's estimate of potential impacts to the electricity and natural gas sectors from AB 32 implementation options


R.10-05-006 (Closed): Implementation of electric resource procurement policies and programs to ensure a reliable and cost-effective electricity supply in California, including authorization to buy and sell GHG allowances and offsets.


Program Impact


  • Establishes procurement rules about how electric utilities comply with Cap-and-Trade
  • Sets formulas for procurement limits for compliance instruments

R.11-03-012 (Open): Addresses potential electric utility cost and revenue issues associated with greenhouse gas emissions including use of revenues that electric utilities may generate from auction of allowances allocated to them by the California Air Resources Board. Includes how revenues may be returned to utility customers or used to fund other programs.


Program Impact


  • Established policy goals and overall framework for distribution of allowance proceeds
  • Established residential California Climate Credit methodology 


  • Established small business California Climate Credit methodology used until 2022
  • Approved, with modifications, the utilities' implementation plans

August 21, 2013 ALJ Ruling

  • Incorporated into the record a report on outreach and education activities (ordered in D.12-12-033)


  • Approved electric utilities' GHG Cap and Trade Implementation Plans (required by D.12-12-033)



  • Ordered the IOUs to split 2013 Cap-and-Trade Program proceeds and GHG costs equally across 2014 and 2015

D.14-12-037 as modified by D.15-08-006 and D.16-07-007

  • Established EITE Methodology
  • Allows for use of CARB-verified production data when calculating EITE credits and makes other minor EITE formula adjustments

January 24, 2014 Letter from the Energy Division Director  

  • Name changed from the 'Climate Dividend' to the 'California Climate Credit'
  • Incorporated into the record by an ALJ Ruling on February 5, 2014


  • Rate reform decision in R.12-06-013 which removed the wide disparity between tiers and found that the residential volumetric rate credit should be eliminated starting January 1, 2016


  • Modifies D.13-12-003 to temporarily allow SDG&E to distribute the California Climate Credit in August and September for 2020 and 2021
  • Modifies the distribution schedule for the 2020 California Climate Credit for PGE & SCE customers
  • The October California Climate Credit was split in half equally and distribution of each half was advanced to the months of May and June
  • Modifies the distribution schedule for the 2020 California Climate Credit for Pacific Power (PacifiCorp) & Liberty (CalPECO) customers
  • For Liberty, the distribution of the October California Climate Credit was advanced to June
  • For Pacific Power (PacifiCorp), the October California Climate Credit was split in half equally and distribution of each half was advanced to the months of June and July

R.13-02-008 (Reopened): Adopts standards and requirements relative to health, safety and facility integrity for biomethane injected into common carrier pipelines.


Program Impact

  • Provides an additional $40M of natural gas allocated allowance auction proceeds to the monetary incentive program to fund biomethane projects
  • Funding burden spread proportionally across all four Natural Gas IOUs consistent with each gas utility’s respective percentage of their combined CARB allocation of Cap-and-Trade allowances
  • Collected in installments of $5 million quarterly over the course of two years, starting with the first Cap-and-Trade allowance auction in 2022

R.14-03-003 (Closed): Establishes the policy, programs, rules, and tariffs necessary for natural gas investor-owned utilities to comply with the California Air Resources Board's greenhouse gas Cap-and-Trade Program.


Program Impact


Appendix A

  • Adopts a settlement agreement regarding policies, programs, rules, and tariffs necessary for natural gas utilities to comply with the Cap-and-Trade Program


as corrected by D.16-01-028

  • Approves methodologies for natural gas utilities to use when calculating forecast and recorded greenhouse gas allowance proceeds and greenhouse gas costs associated with complying with Cap-and-Trade
  •  Closes rehearing of D.15-10-032 and finalizes methodologies for natural gas utilities to use when calculating GHG allowance proceeds and GHG costs associated with complying with Cap-and-Trade
  • Rejects a petition to modify the distribution of the residential Natural Gas California Climate Credit in response to the COVID-19 pandemic

R.14-07-002 (Open): Adopts new clean energy and energy efficiency projects funded with Cap-and-Trade Program funds.


Program Impact

D.17-12-022 as modified by D.19-03-015

  • Established and clarified IOU funding requirements for the SOMAH program

D.18-06-027 as corrected by D.18-10-007

  • Adopts three new programs to promote the installation of renewable generation among residential customers in disadvantaged communities (DACs)
  • Continues authorization of allocation of funds to the SOMAH program through June 30, 2026
  • Adds additional reporting requirements for SOMAH funds, including annual true-up amounts, to ERRA/ECAC applications

R.19-01-011  (Open): Rulemaking to address the decarbonization of buildings.


Program Impact

  • Establishes two building decarbonization pilot programs: (1) The Building Initiative for Low-Emissions Development (BUILD Program) program and (2) The Technology and the Equipment for Clean Heating (TECH Initiative) initiative in accordance with Senate Bill (SB) 1477’s (Stern, 2018)
  • Directs natural gas IOUs to use $50M annually of Auction Allowance Proceeds to fund the BUILD and TECH pilot programs from July 2019 – June 2023


R.20-05-002 (Closed):  Addressed issues needed to keep the residential California Climate Credit, small business California Climate Credit and California Industry Assistance in compliance with all applicable regulations through 2030.  Also, considered steps the Commission should take to improve crediting processes and changes the Commission should take to improve outcomes for ratepayers.

Document Program Impact
Staff Proposal
  • Summarizes past funding outcomes, provides data related to the California Climate Credit and other funded programs, and outlines Energy Division Staff Proposals for the future of the residential California Climate Credit, small business California Climate Credit, and California Industry Assistance
  • Addressed near-term issues needed to ensure uninterrupted delivery of the electric residential California Climate Credit in 2021
  • Continues the small business California Climate Credit as a volumetric return with a 50% assistance factor for 2021
  • Replaced the volumetric small business California Climate Credit with a flat credit equal to the residential California Climate Credit
  • Requires Bear Valley Electric Service to distribute Cap-and-Trade allocated allowance auction proceeds using the same methods as other California IOUs and file an annual Tier 2 advice letter
  • Updates the method for determining the dollar-conversion factor to eliminate the need for true-ups
  • For small and medium EITE facilities only, continues the existing once-per-compliance-period self-attestation auditing requirements for 2021-2030
  • Established a handoff process if and only when CARB implements an adopted process to obtain sole responsibility for crediting large EITE facilities to minimize leakage associated with Cap-and-Trade Program costs in purchased energy
  • Updates the emissions intensity factor to use IOU-specific benchmarks developed by CARB
    Extended SDG&E’s summer pilot distribution of the residential California Climate Credit (established in D.19-12-002) through 2022
  • Directed the Energy Division to hold a workshop and the Joint IOUs to file an Advice Letter with updated Appendix D templates (established under A.13-08-002) to implement crediting methodology changes consistently across IOUs

Advice Letters


Program Impact

PG&E 6326-E-A
PG&E 6326-E-B
PG&E 6326-E-C

SCE 4578-E-A
SCE 4578-E-B
SCE 4578-E-C

SDG&E 3845-E-A
SDG&E 3845-E-B
SDG&E 3845-E-C

Liberty Utilities 177-E-A
Liberty Utilities 177-E-B
Liberty Utilities 177-E-C

Bear Valley 425-E-A
Bear Valley 425-E-B
Bear Valley 425-E-C

PacifiCorp 660-E-A
PacifiCorp 660-E-B
PacifiCorp 660-E-C
  • Approved changes to the D-series templates used to track the use of allocated allowance auction proceeds by each IOU.
  • Modified template D-1 to allow for the calculation of the small business California Climate Credit as a flat credit equal to the residential California Climate Credit.
  • Modified template D-2 to remove information on indirect GHG costs.
  • Removed templates D-4 and D-5.
  • First submitted as part of the 2022 Forecast ERRA applications.

Templates available here:

Attachment D Instructions (PDF)

Attachment D_GHG Cost and Revenue Template (Excel File)





A.12-08-007 (Closed): Applications of the electric utilities for statewide marketing, education, and outreach programs and budgets related to the California Climate Credit.


Program Impact


  • Established post-2016 statewide marketing, education, and outreach activities

A.13-08-026 (Closed): Adopts customer education and outreach activities for 2014-2015 pertaining to the distribution of electric greenhouse gas allowance proceeds to residential, small business, and emissions-intensive and trade-exposed customers.


Program Impact


  • Authorized the Energy Division to change the name of the residential return


  • Determined requirements for customer outreach and education have been satisfied
  • Migrates future outreach and education efforts to A.12-08-007

A.13-08-002 (Closed): Adopts standard procedures and templates for electric utilities to track greenhouse costs and use of Cap-and-Trade Program funds.


Program Impact


  • Established tracking of GHG allowance proceeds in ERRA/ECAC applications





  • Provides updated templates required for GHG allowance proceed reporting and Weighted Average Cost (WAC)
  • 2021 update allows for direct GHG costs to be split between bundled and unbundled customers. Adds Table C-2 to track GHG cost splitting across accounts

A.18-05-015 (Closed): Application to approve the use of Cap-and-Trade allowance revenues to fund Southern California Edison's Clean Energy Optimization Pilot (CEOP).


Program Impact


Attachment A

  • Approved use of $20.4M of Cap-and-Trade Program funds by SCE for a clean energy optimization pilot (CEOP)
  • Approved a settlement modifying the original CEOP pilot agreement in D.19-04-010. This allowed the CEOP to continue to move forward following disruptions caused by the COVID-19 pandemic on energy use at UC and CSU schools.


  • Did not approve 2013 utility outreach and education plans and redirected funds to a neutral non-profit entity to coordinate outreach and education with Energy Upgrade California
  • Establish implementation details for EITE credit
  • Establish the attestation process for Small and Medium EITEs, set refinery formulas for later compliance periods, and clarified processes for multisector EITE facilities 
  • Implemented the Disadvantaged Communities Green Tariff (DAC-GT) and Community Solar Green Tariff (CSGT) programs
  • Required natural gas IOUs to set-aside a portion of 2020 auction allowance proceeds for Senate Bill 1477 (Low emissions buildings and sources of heat energy) and recalculate the California Climate Credit amount. 

Decision Approving the Return of Cap-and-Trade Program Funds for Electric IOUs

The following decisions record the amount of Cap-and-Trade Program funds for each year and approve the use of these proceeds to fund the residential electric California Climate Credit, the small business California Climate Credit, the California Industry Assistance Credit, as well as certain Clean Energy and Energy Efficiency programs. The decisions also approve the use of GHG allowance proceeds for administrative and outreach expenses.

*Pacific Power's 2020, 2021, and 2022 California Climate Credits were approved independently from the rest of their ECAC Application. 

**Timing of the California Climate Credits was adjusted in response to COVID-19.

***Prior to 2022 Bear Valley Electric Service did not issue a California Climate Credit and distributed all allocated allowance auction proceeds volumetrically. See D.12-12-033 and D.21-08-026.

Advice Letters Approved for the Return of Cap-and-Trade Program Funds for Natural Gas IOUs

The following advice letters record the amount of Cap-and-Trade Program funds for each year and calculate the use of these proceeds to fund the residential natural gas California Climate Credit and building decarbonization pilot programs required under SB 1477. The advice letters also report the use of GHG allowance proceeds for administrative and outreach expenses.





Southwest Gas


Proceeds for 2015-2017 were netted against costs (as directed in D.18-03-017). Tracking of this process is included in the 2018 Advice Letters.




AL 3975-G-A /

AL 4053-G

AL 2673-G-C

AL 5426

AL 1072


AL 4053-G

AL 2712-G

AL 5368

AL 1087


AL 4173-G /

AL 4217-G

AL 2810-G /

AL 2843-G

AL 5530 /

AL 5588

AL 1118 /

AL 1126

 2021 AL 4328-G
AL 2921-G
AL 5712-A
AL 1154-G

AL 4518-G

AL 4543-G

AL 3024-G

AL 5884-G

AL 5884-A-G

AL 1192-G

AL 1192-A-G

*Resolution G-3565 required natural gas IOUs  to set-aside a portion of 2020 auction allowance proceeds for Senate Bill 1477 (Stern 2018), recalculate the California Climate Credit amount, and resubmit the recalculated table via a separate advice letter.


Quick Reference Guide to CPUC's Cap-and-Trade Program Websites

Go here

To find out about…

Greenhouse Gas Cap-and-Trade Program

Basics and summary statistics

California Climate Credit

Climate Credit amounts and FAQ

Small Business Climate Credit

Info for small business owners and FAQ

California Industry Assistance

Eligibility requirements and FAQ

NAICS Codes Eligible for California Industry Assistance

Which industries qualify as EITE

CPUC Cap-and-Trade Program Decision-making

Related CPUC documents