California Air Resources Board

In November 2014, the California Air Resources Board (CARB) and the Québec Ministère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP) began holding joint greenhouse gas (GHG) allowance auctions to allow market participants to acquire GHG allowances. Prior to the first joint auction, as part of the Cap-and-Trade Program, CARB held eight (8) jurisdiction specific quarterly GHG allowance auctions beginning in November 2012.

Summaries of Cap-and-Trade Program auction settlement prices and results and auction proceeds are available below.

• Auction Settlement Prices and Results Summary
• Auction Proceeds Summary

The table below provides Auction Notices, Summary Results Reports, and California Post Joint Auction Public Proceeds Reports for each auction. Auction Notices are supplemented with additional materials providing detailed requirements and instructions for participating in a joint auction as well as examples of how to determine the amount of a bid guarantee, how holding and purchase limits are applied, how U.S. and Canadian currencies are handled, and examples of how joint auctions are settled. The most recent supplemental material is provided with the most recent Auction Notice posted at CARB Auction Information. Supplemental materials for prior auctions are available from CARB staff.

Auction Schedules

2025 Joint Auction Summary of Expected Dates (posted December 2, 2024)
2024 Joint Auction Summary of Expected Dates (posted December 1, 2023)
2023 Joint Auction Summary of Expected Dates(posted December 1, 2022)
2022 Joint Auction Summary of Expected Dates (posted December 1, 2021)
2021 Joint Auction Summary of Expected Dates (posted December 1, 2020)
2020 Joint Auction Summary of Expected Dates (posted December 2, 2019)
2019 Joint Auction Summary of Expected Dates (posted December 3, 2018)
2018 Auction and Reserve Sale Activities Summary of Expected Dates (posted December 1, 2017)
2017 Auction and Reserve Sale Activities Summary of Expected Dates (posted December 1, 2016)
2016 Auction and Reserve Sale Activities Summary of Expected Dates (posted November 10, 2015)
2015 Auction and Reserve Sale Activities Summary of Expected Dates (updated December 29, 2014)
2014 Auction and Reserve Sale Activities Summary of Expected Dates (updated November 21, 2014)

Annual Auction Reserve Price Notices

2025 Annual Auction Reserve Price Notice (posted December 2, 2024)
2024 Annual Auction Reserve Price Notice (updated December 1, 2023)
2023 Annual Auction Reserve Price Notice (updated December 21, 2022)
2022 Annual Auction Reserve Price Notice (posted December 1, 2021)
2021 Annual Auction Reserve Price Notice (posted December 1, 2020)
2020 Annual Auction Reserve Price Notice (posted December 2, 2019)
2019 Annual Auction Reserve Price Notice (posted December 3, 2018)
2018 Annual Auction Reserve Price Notice (posted December 1, 2017)
2017 Annual Auction Reserve Price Notice (posted December 1, 2016)
2016 Annual Auction Reserve Price Notice (posted December 1, 2015)
2015 Annual Auction Reserve Price Notice (revised December 2, 2014)
2014 Annual Auction Reserve Price Notice (updated September 19, 2014)
2013 Annual Auction Reserve Price Notice (updated January 15, 2013)