Cap-and-Trade Program

The Cap-and-Trade Program is a key element of California’s strategy to reduce greenhouse gas emissions. It complements other measures to ensure that California cost-effectively meets its goals for greenhouse gas emissions reductions.
More about this program

May 2025 Joint Auction #43 Notice

The next auction will be held on May 21, 2025

Auction Notice

Cap-and-Trade Calendar

Events and deadlines

Data Dashboard

Regulation

Current, past, and rulemaking documents

Cap-and-Trade Quick Facts

FAQ Cap-and-Trade Program

Allowance Distribution Factsheet

CITSS Registrants Report

Compliance Instrument Report

ARB Offset Credits Issued

Summary of Auction Results

Summary of Auction Proceeds

Current Auction Notice

Potential Amendments to the Cap-and-Trade Regulation

Rulemaking Materials
View Regulation for more information.

Public Workshops
View Meetings & Workshops for more information.

Market Notice
On October 15, 2024, CARB issued a market notice: Information Regarding Cap-and-Trade Regulation Updates

Update
We're still working through the regulatory package and expect to move forward this year. At the same time, the administration is working with the legislature as they consider extension of the Cap-and-Trade Program.