Frequently Asked Questions About CARB Compliance and Testing

CARB Clean Truck Check is California’s emissions compliance program designed to help ensure heavy-duty vehicles meet required emissions standards through periodic testing and compliance checks.

Most California heavy-duty diesel and alternative-fuel vehicles operating on public roads may be subject to Clean Truck Check requirements, depending on their vehicle type and applicable regulations.

Yes. A&T provides mobile emissions testing at your fleet location, making compliance convenient while reducing unnecessary travel and downtime.

A&T serves fleets throughout the Bay Area, Sacramento, Central Valley, San Francisco Peninsula, and surrounding Northern California areas.

A&T focuses on efficient testing to minimize disruption to your operations. Testing time depends on the vehicle, fleet size, and services required.

Contact A&T to schedule your testing. We’ll coordinate a convenient time and location based on your fleet’s needs and help you prepare for the testing process.

Yes. A&T can perform testing for multiple vehicles at your fleet yard, making on-site fleet testing an efficient option for larger operations.

Yes. A&T provides support with testing records and compliance documentation, helping fleet managers keep their records organized and up to date.

Yes. While A&T primarily serves Northern California, statewide service is available for scheduled fleet projects and larger compliance needs.

A&T provides emissions testing for eligible heavy-duty diesel vehicles and fleets. Contact us with your vehicle details to confirm testing requirements and eligibility.