The fourth California Cap-and-Trade Program Compliance Period (CP4) began on January 1, 2021, and ended on December 31, 2023. This Compliance Period includes two annual compliance obligation deadlines, November 1, 2022 (for 2021 emissions) and November 1, 2023 (for 2022 emissions), and one Full Compliance Period Compliance Obligation deadline on November 1, 2024 (remaining balance of 2021 and 2022 emissions plus full 2023 emissions).
This document outlines the key actions that the Primary Account Representative (PAR) and/or an Alternate Account Representative (AAR) should undertake to ensure their entity has sufficient compliance instruments (eligible allowances and offset credits) in its compliance account to fulfill the 2021-2023 Full Compliance Period Compliance Obligation.