Platts will launch additional California Carbon Offset assessment, update name, specifications for existing CCO Current Month assessment, June 1

Platts, part of S&P Global Energy, will launch an additional price assessment for California Carbon Offsets (CCOs) with Direct Environmental Benefits in the State (DEBS), effective June 1, 2026.

This follows a proposal published on Feb. 20.

Platts recognizes the relevance of differentiating between CCOs with the DEBS attribution attached and its importance in compliance obligations. Compliance entities may use up to 6% of compliance offset credits to fulfill their compliance obligations for emissions from 2026-2030. Half of the offset credit use limit must have the DEBS attribution.

Given this, Platts will launch an assessment for CCOs with DEBS with the following specifications:

Simultaneously, Platts will update the volume for its existing CCO Current Month Current Year Vintage assessment from the original specifications of 1,000-10,000 mtCO2e to 5,000- 50,000 mtCO2e. This change is intended to better reflect typical volumes traded in the spot market. Platts will also change the delivery period from the current month to the spot market 3-5 days forward.

Effective June 1, the updated specifications for the assessment will be as follows:

Please send all comments, feedback, and questions to platts_carbon@spglobal.com and pricegroup@spglobal.com.

For written comments, please indicate clearly if your comments are not intended for publication by Platts for public viewing.

Platts will consider all comments received and will make comments not marked as confidential available upon request.