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CARB Diesel Test

CARB Testing in San Francisco

Mobile CARB Clean Truck Check testing across San Francisco

We come to your San Francisco yard, job site, or terminal so your trucks stay where they belong. Credentialed OBD and OVI testing with results uploaded before we leave.

CARB Credentialed Tester
200+ 5-Star Reviews
OBD & OVI Certified
Mobile Service Available

CARB Clean Truck Check testing across San Francisco

San Francisco is a uniquely difficult city to drive a heavy-duty diesel through. Steep grades, narrow streets, packed downtown blocks, and tight delivery windows. For SF fleet operators, taking a truck out of service to drive it across the Bay Bridge for a CARB test is a real cost. We solve that by bringing certified testing into the city.

What we test in San Francisco

OBD testing for diesel engines model year 2013 and newer, OVI opacity testing for older engines, and the full CARB Clean Truck Check workflow for trucks above 14,000 pounds GVWR. We also handle BAR-OIS testing for diesels under that threshold, which covers a meaningful slice of SF’s contractor and delivery fleet.

Where we dispatch in San Francisco

We regularly serve Bayview-Hunters Point, India Basin, Pier 80, Mission Bay, Dogpatch, Potrero Hill, the SoMa delivery hubs, the Bayshore Boulevard fleet corridor, and yards out near Treasure Island. Residential service across the Sunset, Richmond, Mission, Bernal Heights, and Excelsior neighborhoods is routine for owner-operators and RV customers.

The fleets we work with in SF

Construction and high-rise contractors building Mission Bay and SoMa. Last-mile delivery operators running every neighborhood. Refuse and recycling fleets out of SF’s industrial belt. Hotel and corporate shuttles. Tour-bus operators serving the Wharf and Union Square. Owner-operator truckers with rigs parked at home.

Same-day DMV hold clearance

For 2013 and newer engines eligible for OBD testing, we upload results electronically during the visit. CARB releases compliance to DMV the same business day in most cases, which means your SF-registered vehicle can come off its DMV hold within hours of the test. If you are under a time-sensitive hold, call early and we will prioritize.

One call, any size SF fleet

Whether you operate a single rig out of a residential SF address or run a contractor fleet from a Bayview yard, the call is the same. Tell us where the trucks are. We will be there.

Local landmarks we dispatch near

  • Bayview-Hunters Point industrial district
  • India Basin and Pier 80
  • Mission Bay and Dogpatch construction zones
  • Potrero Hill commercial corridor
  • SoMa delivery and rideshare hubs
  • Bayshore Boulevard fleet yards
  • Presidio and Marina commercial routes
  • Treasure Island staging areas

San Francisco industries we serve

  • Construction and high-rise contractors
  • Last-mile delivery and parcel fleets
  • Waste, recycling, and street-sweeping operators
  • Municipal and SFMTA-adjacent fleets
  • Tour-bus and shuttle operators
  • Food-service and restaurant distribution
  • Owner-operators and RV owners

Frequently asked questions

Do you actually test trucks inside San Francisco?
Yes. We dispatch credentialed testers into San Francisco regularly. Most of our SF volume is in Bayview-Hunters Point, India Basin, Mission Bay, the SoMa delivery corridor, and along Bayshore Boulevard. Residential and small-yard testing in other neighborhoods is also routine.
How does mobile testing compare to driving my truck out of San Francisco?
Driving a Class 8 truck through San Francisco to reach a brick-and-mortar test station is brutal. Steep grades, narrow streets, downtown congestion, bridge tolls, and lost dispatch time. Mobile testing eliminates all of that. We come to you. The truck stays where it is working.
How fast can you get to my San Francisco yard?
Most San Francisco requests are scheduled within 24 to 48 hours. Same-day service is often possible for active DMV holds when called before 10 a.m.
Can you test waste and recycling fleets in San Francisco?
Yes. Refuse, recycling, and street-sweeping fleets run heavy-duty diesels that fall squarely under CARB Clean Truck Check requirements. We routinely test these vehicles at their home yards across the city.
Do you handle construction-site testing in San Francisco?
Yes. We test on active construction sites, equipment yards, and contractor staging areas including Mission Bay, Dogpatch, and SoMa builds. Tell us the site address, the gate procedure, and the rigs that need testing.
What about tour-bus and shuttle operators?
We test commercial tour buses, hotel shuttles, and corporate shuttle fleets across San Francisco. Same OBD and OVI workflow, same DMV-hold clearance benefits.
Where do I park my truck for a residential San Francisco test?
We need a flat, safe spot where the truck can sit for the duration of the test with the engine accessible. Driveways, alleys, or wide curb space all work as long as the truck fits legally and safely. If you are unsure, send us a photo when you book.
What does same-day DMV clearance mean for SF-registered rigs?
For 2013 and newer engines passing OBD, we upload results electronically during the visit. CARB releases compliance to DMV the same business day in most cases, so an SF-registered vehicle under a hold can come off it within hours.

Book San Francisco mobile testing

Get a tester on your San Francisco site

Tell us about your vehicles. We respond within 2 hours during business hours.

Or call us directly at (916) 538-7777. We typically respond within 2 hours during business hours.

Ready for mobile CARB testing in San Francisco?

One call books one truck or an entire fleet.

Call (916) 538-7777 Request a Quote
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