Keeping Your Fleet Compliant, Efficient, and Always Moving
A&T Fleet Compliance brings certified diesel emissions testing and regulatory consulting directly to your yard, helping California fleets meet CARB requirements without disrupting daily operations.
A&T Fleet Compliance delivers 24/7 mobile CARB diesel emissions testing, fleet diagnostics, and documentation handling across California, securing 100 percent compliance for trucks of every size while saving managers time, money, and mileage.
What Truly Sets Us Apart
Our business model revolves around convenience and accuracy. Instead of forcing you to send trucks to a test center, our CARB-certified technicians arrive with fully equipped mobile units, conduct thorough diesel emissions testing, perform DEF system diagnostics, and review DOT requirements on site. After testing, we file every piece of paperwork with CARB on your behalf, so you never chase forms or deadlines. The result: uninterrupted routes, zero surprise violations, and a confident, compliant fleet.
Serving Fleets Across Northern California
Headquartered in Manteca, we regularly serve fleets throughout the Bay Area, Central Valley, and San Jose. Because our units are fully mobile, we can deploy statewide or organize nationwide consulting sessions, giving operators the flexibility to meet compliance obligations wherever routes or depots happen to be located.
Our Values
Our Promise
Integrity and reliability drive every decision we make daily.
Fleet Support You Trust
Service Area
Manteca based, supporting fleets statewide and beyond.
Expert Team
Certified Technicians
CARB-certified professionals deliver precise.
Fleet Readiness
vehicle inspection-ready.
Maintain compliance with confidence.
Why Our Clients Choose Us
Fleet managers partner with us because we combine technical expertise, responsive scheduling, and meticulous paperwork support. Our 24/7 availability means your trucks stay on the road during critical windows, while our 100 percent compliance record safeguards your bottom line against fines, delays, and costly repeat tests.
Trusted Regulatory Compliance Expertise
Decades of insight simplify complex rules.
Round-the-Clock Fleet Support
Mobile testing minimizes downtime and travel costs.
Clear Regulatory Guidance Simplified
We handle all CARB paperwork for you.
Our Compliance Process Explained Clearly
Step one is simple: schedule a visit online or by phone. Our team arrives at your yard at the agreed time, conducts emissions testing, DEF diagnostics, and DOT inspections in a single session, then reviews results on the spot. If everything passes, we upload the data to CARB and issue compliance certificates immediately. Should a vehicle require attention, we supply a clear repair roadmap so you can act quickly and avoid enforcement actions or costly downtime.
Ready to eliminate downtime and stay compliant? Book your mobile emissions test today.
Need Your Truck Tested ?
Compliance made truly effortless.
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