2023 Key Program Dates
This page highlights the key program dates related to the implementation of the Acid Rain Program, Cross-State Air Pollution Rule, and TX SO2 Trading Program for the calendar year.
| Date | Event |
|---|---|
| January 30, 2023 | End of 2022 4th quarter emissions reporting period |
| March 1, 2023 | Allowance transfer deadline for 2022 ARP compliance period |
| Deadline to submit specified allowance deductions for 2022 ARP compliance (optional) | |
| Preliminary CSAPR New Unit Set-Aside (NUSA) allocations published | |
| March 2, 2023 | Sources can run 2022 ARP final compliance (Note: accounts remain frozen until final compliance is run) |
| March 28, 2023 | ARP Allowance Auction |
| May 1, 2023 | End of 1st quarter 2023 emissions reporting period |
| Final CSAPR NUSA allocations published and allowances recorded | |
| TX SO2 Supplemental pool allocations recorded (if necessary) | |
| Beginning of Ozone Season | |
| Early May 2023 | EPA runs final 2022 compliance for ARP sources that have not already done so themselves |
| June 1, 2023 | Allowance transfer deadline for 2022 control periods under all CSAPR and TX SO2 programs |
| Deadline to submit specified allowance deductions for 2022 CSAPR and TX SO2 compliance (optional) | |
| Deadline for CSAPR states with approval State Implementation Plans (SIP) to submit annual allocations | |
| June 2, 2023 | Sources can run 2022 CSAPR final compliance (Note: accounts remain frozen until final compliance is run) |
| June 9, 2023 | EPA runs final 2022 compliance for CSAPR and TX SO2 sources that have not already done so themselves |
| July 1, 2023 | Deadline for EPA to record annual allowance allocations for ARP |
| July 31, 2023 | End of 2nd quarter 2023 emissions reporting period |
| August 1, 2023 | |
| Notice of preliminary 2022 CSAPR assurance provision calculations published in the event of assurance level exceedances | |
| September 30, 2023 | End of Ozone Season |
| October 30, 2023 | End of 3rd quarter 2023 emissions reporting period |
| November 1, 2023 | Deadline for 2022 CSAPR assurance provisions allowance surrender (if necessary) |
| January 30, 2024 | End of 4th quarter 2023 emissions reporting period |
See 2022 Key Program Dates here.
See 2023 and 2024 key dates associated with the Good Neighbor Plan here.