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Truck and Warehouse

CLEAN TRUCK CHECK SERVICE IN SAN FRANCISCO AREA (CTC)

Clean Truck Check (CTC) Emissions Testing in San Francisco Bay Area

Certified CTC Testing. Mobile Convenience. CARB Compliance Made Simple

If you operate diesel trucks in California, the Clean Truck Check (CTC)—also known as the CARB HD I/M Program—is not optional. It’s the law. At Dogpatch Biofuels, we make it easy to stay in compliance with fast, mobile, and fully accredited CTC testing services across San Francisco, San Jose, Oakland, and the greater Bay Area.

What Is the Clean Truck Check Program?

The Clean Truck Check is part of California’s effort to reduce emissions from heavy-duty vehicles. Administered by the California Air Resources Board (CARB), it mandates that diesel-powered trucks and buses over 14,000 lbs GVWR undergo OBD-based emissions inspections—and submit proof of compliance at regular intervals.

So, “What is the Clean Truck Check program?”—it’s California’s way of holding fleets and owner-operators accountable for vehicle emissions.

CTC Testing Services We Offer

Dogpatch Biofuels provides on-site, mobile OBD emissions testing—delivered to your location for maximum convenience. Our CARB-accredited testers ensure your compliance is fast, accurate, and hassle-free.

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Our services include:

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  • J1979 OBD II and J1939 port testing (16-pin & 9-pin compatible)

  • Direct digital submission to CARB database

  • Free re-testing if your vehicle doesn’t pass

  • Automated compliance tracking & test reminders

  • Fleet discounts for ongoing clients

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Bundled pricing for Dogpatch Biofuels fuel delivery customers

Transparent Pricing

 

Base Rate: $150 per test


Volume-based discounts available for fleets or repeat clients.

 

Ask us about:

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  • Multi-truck testing days

  • Dogpatch customer fuel & compliance bundles

  • Partnering with our fuel + emissions solutions team

 Schedule Your Clean Truck Check Today

 

Don’t let California diesel truck regulations catch you off guard. We’re here to help you stay ahead of CARB regulations 2025, reduce emissions, and keep your vehicles on the road.

 

Call: (415) 642-7378
Email: station@dogpatchbiofuels.com
Location: 765 Pennsylvania Ave, San Francisco, CA

Who Needs to Comply with CTC?

The Clean Truck Check applies to:

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  • All diesel vehicles over 14,000 lbs GVWR

  • Non-gasoline vehicles operating within California

  • Owner-operators, fleets, and commercial transport providers

  • Out-of-state vehicles entering California​

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Failing to comply can result in:

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  • DMV registration holds

  • Penalty fees

  • Legal violations

  • Lost contracts due to non-compliant fleet status

Areas We Serve

We proudly offer mobile Clean Truck Check testing throughout:

  • San Francisco

  • San Jose

  • Oakland

  • Berkeley

  • East Bay

  • Peninsula & surrounding Bay Area

Our techs come to you—no need to send your trucks off-route or lose valuable hours.

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