California Code of Regulations
Title 17 - Public Health
Division 3 - Air Resources
Chapter 1 - Air Resources Board
Subchapter 10 - Climate Change
Article 5 - California Cap on Greenhouse Gas Emissions and Market-Based Compliance Mechanisms
Appendix C - Quarterly Auction and Reserve Sale Dates

Universal Citation: 17 CA Code of Regs C
Current through Register 2024 Notice Reg. No. 38, September 20, 2024

Auction201520162017201820192020
Q1 AuctionWednesday, February 18Wednesday, February 17Wednesday, February 22Wednesday, February 21Wednesday, February 20Wednesday, February 19
Q1 Reserve SaleWednesday, April 1Tuesday, March 29Tuesday, April 4Tuesday, April 3Tuesday, April 2Wednesday, April 1
Q2 AuctionTuesday, May 19Tuesday, May 17Tuesday, May 16Tuesday, May 15Tuesday, May 14Tuesday, May 19
Q2 Reserve SaleTuesday, June 30Tuesday, June 28Tuesday, June 27Tuesday, June 26Tuesday, June 25Tuesday, June 30
Q3 AuctionTuesday, August 18Tuesday, August 16Tuesday, August 15Tuesday, August 14Tuesday, August 20Tuesday, August 18
Q3 Reserve SaleTuesday, October 6Tuesday, October 4Tuesday, October 3Tuesday, October 2Tuesday, October 8Tuesday, October 6
Q4 AuctionTuesday, November 17Tuesday, November 15Tuesday, November 14Wednesday, November 14Tuesday, November 19Tuesday, November 17
Q4 Reserve SaleTuesday, December 29Friday, December 30Friday, December 29Friday, December 28Tuesday, December 31Tuesday, December 29
Auction202120222023202420252026
Quarter 1 AuctionWednesday, 2/17/2021Wednesday, 2/16/2022Wednesday, 2/15/2023Wednesday, 2/14/2024Wednesday, 2/19/2025Wednesday, 2/18/2026
Quarter 1 Reserve SaleTuesday, 3/30/2021Wednesday, 3/30/2022Wednesday, 3/29/2023Wednesday, 3/27/2024Wednesday, 3/26/2025Wednesday, 4/1/2026
Quarter 2 AuctionWednesday, 5/19/2021Wednesday, 5/18/2022Wednesday, 5/17/2023Wednesday, 5/15/2024Wednesday, 5/21/2025Wednesday, 5/20/2026
Quarter 2 Reserve SaleWednesday, 6/30/2021Wednesday, 6/29/2022Wednesday, 6/28/2023Wednesday, 6/26/2024Wednesday, 6/25/2025Tuesday, 6/30/2026
Quarter 3 AuctionWednesday, 8/18/2021Wednesday, 8/17/2022Wednesday, 8/16/2023Wednesday, 8/14/2024Wednesday, 8/20/2025Wednesday, 8/19/2026
Quarter 3 Reserve SaleWednesday, 9/29/2021Wednesday, 9/28/2022Wednesday, 9/27/2023Wednesday, 9/25/2024Tuesday, 9/30/2025Wednesday, 9/30/2026
Quarter 4 AuctionWednesday, 11/17/2021Wednesday, 11/16/2022Wednesday, 11/15/2023Wednesday, 11/20/2024Wednesday, 11/19/2025Wednesday, 11/18/2026
Quarter 4 Reserve SaleWednesday, 12/29/2021Wednesday, 12/28/2022Wednesday, 12/27/2023Tuesday, 12/31/2024Tuesday, 12/30/2025Wednesday, 12/30/2026
Auction20272028202920302031
Quarter 1 AuctionWednesday, 2/17/2027Wednesday, 2/16/2028Wednesday, 2/14/2029Wednesday, 2/20/2030Wednesday, 2/19/2031
Quarter 1 Reserve SaleTuesday, 3/30/2027Wednesday, 3/29/2028Wednesday, 3/28/2029Wednesday, 4/3/2030Wednesday, 3/26/2031
Quarter 2 AuctionWednesday, 5/19/2027Wednesday, 5/17/2028Wednesday, 5/16/2029Wednesday, 5/15/2030Wednesday, 5/14/2031
Quarter 2 Reserve SaleWednesday, 6/30/2027Wednesday, 6/28/2028Wednesday, 6/27/2029Wednesday, 6/26/2030Wednesday, 6/25/2031
Quarter 3 AuctionWednesday, 8/18/2027Wednesday, 8/16/2028Wednesday, 8/15/2029Wednesday, 8/14/2030Wednesday, 8/20/2031
Quarter 3 Reserve SaleWednesday, 9/29/2027Wednesday, 9/27/2028Wednesday, 9/26/2029Wednesday, 9/25/2030Tuesday, 9/30/2031
Quarter 4 AuctionWednesday, 11/17/2027Wednesday, 11/15/2028Wednesday, 11/14/2029Wednesday, 11/20/2030Wednesday, 11/19/2031
Quarter 4 Reserve SaleWednesday, 12/29/2027Wednesday, 12/27/2028Wednesday, 12/26/2029Tuesday, 12/31/2030Tuesday, 12/30/2031

1. New Appendix C filed 6-26-2014; operative 7-1-2014 pursuant to Government Code section 11343.4(b)(3) (Register 2014, No. 26).
2. Editorial correction relocating Appendix C from section 95914 to section 96022 (Register 2016, No. 31).
3. Amendment filed 9-18-2017; operative 10-1-2017 pursuant to Government Code section 11343.4(b)(3) (Register 2017, No. 38).

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