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Carbon Verification Service is accredited by the California Air Resources Board (CARB) as a verification body. We employ only Verifiers accredited by CARB to provide verification services.  

Carbon Verification Service is an AccountAbility-licensed assurance provider for the AA1000APS and AA1000AS standards (License No. 000-207).

We have provided verification services for companies seeking verification of reports submitted to the following programs:

  • Carbon Disclosure Project
  • Dow Jones Sustainability Index
  • Greenhouse Gas Protocol
  • California Air Resources Board Mandatory Greenhouse Gas Reporting Rule

In addition to CARB accreditation, Carbon Verification Service staff members have more than 50 years of combined experience in greenhouse gas inventory development in accordance with international GHG reporting protocols and International Standards Organization (ISO) environmental management system audits such as ISO 14001 and 14064.