PREPARE FOR SB 253 AND VERIFY YOUR GHG EMISSIONS
Verify your GHG inventory to identify material risks and strengthen your data ahead of SB 253 disclosure.
GHG Protocol-aligned
Ensure your GHG inventory is assessed with clear boundaries, appropriate methodologies, and supporting evidence.
Sectorial expertise
Work with a team experienced in verifying emissions across complex food and agriculture operations, including supplier data and regional differences.
Digitally-enabled
Structure and review your GHG data consistently with a platform-supported verification process.
What you need to know about SB 253
California Senate Bill 253 (SB 253), also known as the Climate Corporate Data Accountability Act, requires large U.S. companies doing business in California to publicly disclose their greenhouse gas emissions.
By August 10 2026, companies must:
- Report Scope 1 and 2 emissions
- Ensure data is supported by clear methodologies and documentation
- Undergo independent third-party verification of reported emissions
SustainCERT provides independent verification of your GHG inventory, confirming that it is prepared in line with the GHG Protocol and complies with SB 253 requirements.
A risk-based verification approach
Our methodology follows ISO-aligned verification principles, with a clear emphasis on materiality and risk.
Each engagement begins with structured scoping to define boundaries, criteria, and inventory architecture. Verification then focuses on areas where discrepancies could materially impact reported results - prioritizing effort where it matters most.
This ensures efficiency without compromising rigor and reflects how verification is intended to function: as a risk-based assessment of material discrepancies.
Digitally enabled verification
Corporate GHG inventories are complex and often difficult to audit consistently.
Our verification services are supported by our Carbon Verification Platform, designed to structure data, streamline evidence handling, and improve traceability across the verification process.
This allows you to:
- Reduce manual effort in data and evidence collection
- Improve traceability and auditability across systems
- Ensure consistency across reporting cycles
MEET SB 253 REQUIREMENTS WITH CONFIDENCE
Verify your GHG emissions to meet SB 253 requirements, identify areas of material risk, and strengthen your data before disclosure.