Last updated May 9, 2026. CarbTesters.org is published by Bobega LLC.
CarbTesters.org is an independent tool to help truckers and motor carriers discover credentialed testers. It is not the California Air Resources Board, not a government website, and not an official CARB application. CARB’s trademarks and program names belong to their respective owners.
Data compiled from public listings published by the California Air Resources Board (CARB).
Information is based on the last published CARB source we imported. It may be incomplete or outdated; always confirm requirements and current credentialed testers on the official CARB / Clean Truck Check website.
Official program information: CARB Clean Truck Check hub. Official public tester listings: CARB credentialed testers.
“Near you” searches use ZIP-code centroids and published addresses. Road distance and drive time may differ. Maps may use third-party tiles or APIs subject to their own terms.
Contact details are shown to facilitate legitimate fleet and compliance outreach. Misuse (harassment, spam, or unrelated solicitation) violates our Terms of Service.