Skip to content
Clean Truck Check by Diesel Dynamix

Southern California · Mobile CARB testing

Clean Truck Check in San Diego

From Otay Mesa border traffic to Miramar distribution yards and North County contractors, San Diego trucks work hard. We bring Clean Truck Check testing to your yard, jobsite or terminal so your rigs stay compliant without a trip across the county.

Book in San Diego

Request on-site testing

Prefer to talk? Call (858) 342-8328

Map of Southern California showing Diesel Dynamix service locationsPACIFIC OCEANSAN DIEGO

Mobile CARB testing in San Diego

CARB-verified OBD tests for 2013+ diesel and 2018+ alternative-fuel trucks, done at your San Diego location.

Smoke test in San Diego

Smoke opacity tests and visual inspections for older non-OBD engines, on-site in San Diego.

Which test does your truck need?

  • Vehicle → test method
  • 2013+ diesel engines with OBD

    CARB-verified OBD test

  • 2012 and older diesel without OBD

    Smoke opacity test + visual inspection

  • 2018+ alternative-fuel engines with OBD

    CARB-verified OBD test

  • 2017 and older alternative-fuel without OBD

    Visual inspection

Most covered trucks (over 14,000 lb GVWR, including out-of-state trucks driving in California) currently test twice a year. Under the original rule, OBD-equipped vehicles move to four tests per year from October 1, 2027. A bill has proposed cutting testing to once a year, so requirements may change. Always check your own deadlines in CARB’s CTC-VIS system. Open CTC-VIS Source: California Air Resources Board.

San Diego Clean Truck Check FAQ

Can Clean Truck Check be done at my yard in San Diego?

Yes. Diesel Dynamix is a mobile service. We come to your yard, jobsite or parking location in San Diego and test your trucks on-site, so you never drive to a test center.

Do you do smoke tests in San Diego?

Yes. We perform smoke opacity tests with a visual inspection for 2012 and older diesel engines without OBD, and CARB-verified OBD tests for 2013 and newer engines, anywhere in San Diego and the rest of Southern California.

Can you test a whole fleet in San Diego?

Yes. Tell us how many trucks you have in San Diego and we will plan one visit to test as many as possible, with recurring testing so every truck stays inside its Clean Truck Check window.

Also serving Southern California

Clean Truck Check in San Diego

Clean Truck Check in San Diego can be done at your yard, jobsite or home. We are a mobile tester, so we drive to the truck and test it on site anywhere in San Diego County.

Whether you call it truck emissions testing, a truck smog check or a diesel truck smog check in San Diego, the test depends on the engine:

  • 2013 and newer diesel and 2018 and newer alternative-fuel: a CARB OBD test.
  • 2012 and older diesel without OBD: a smoke opacity test plus a visual inspection.
  • 2017 and older alternative-fuel without OBD: a visual inspection.

In the city we test at business parks and yards in Miramar and Kearny Mesa and across the rest of San Diego. We explain the result in plain English, give the next due date and can send reminders. Call or text (858) 342-8328, message us on WhatsApp, or book online.

Otay Mesa, San Ysidro and the South Bay border crossing

Otay Mesa is one of the busiest truck areas in San Diego, and we test there often. Yards and lots near the Otay Mesa Port of Entry, in the 92154 area, can book Clean Truck Check without moving trucks out of the line-up. We also cover San Ysidro in 92173.

Cross-border carriers should know that the program covers international trucks, including Mexico-registered trucks, that operate in California. Out-of-state trucks are covered too. Our guide on out-of-state trucks explains the basics.

For truck emissions testing in the South Bay, we drive to Chula Vista and National City yards, transload lots and contractor yards. If your trucks are spread between a border lot and a yard further north, tell us both addresses and we will plan the visit.

After testing, owners report vehicles in CARB's CTC-VIS system. We help with CTC-VIS questions if the system gives you trouble.

North County and East County fleets

We bring the same on-site testing to North County and East County San Diego. Fleets and owner-operators do not have to drive into the city.

In North County San Diego we test in Escondido, San Marcos, Vista, Oceanside, Carlsbad, Poway, Ramona and Fallbrook. In East County we cover El Cajon (including 92020), Santee, Lakeside, La Mesa, Lemon Grove and Spring Valley.

Construction companies can book a dump truck smog check at the jobsite. Fleet emissions testing in San Diego includes:

  • Per-truck pricing for fleets.
  • Early-morning visits before trucks leave.
  • Records per truck and VIN.
  • Recurring visits so trucks stay inside their window.

If a truck fails, it needs repair and a retest. We do not repair trucks, but we explain what the result means. See failed Clean Truck Check: what to do and our fleet testing page.

Areas we drive to around San Diego

  • Otay Mesa
  • San Ysidro
  • Chula Vista
  • National City
  • Miramar
  • Kearny Mesa
  • El Cajon
  • Santee
  • Lakeside
  • La Mesa
  • Escondido
  • San Marcos
  • Vista
  • Oceanside
  • Carlsbad
  • Poway

Questions

More questions

Still unsure? Call or text (858) 342-8328 and we will help.

Do you test trucks near the Otay Mesa Port of Entry?

Yes. We test at yards and lots near the Otay Mesa Port of Entry in the 92154 area, so trucks stay close to the border crossing.

Do Mexico-registered trucks need Clean Truck Check in San Diego?

Yes, if they operate in California and fall under the program. International trucks are covered, and we can test them on site in Otay Mesa or San Ysidro.

Do you offer mobile Clean Truck Check in North County San Diego?

Yes. We test trucks on site in Escondido, San Marcos, Vista, Oceanside, Carlsbad, Poway, Ramona and Fallbrook.

Do you cover East County, including El Cajon and Santee?

Yes. We test in El Cajon, Santee, Lakeside, La Mesa, Lemon Grove and Spring Valley at your yard, jobsite or home.

Do you test trucks at Chula Vista and National City yards?

Yes. We drive to yards and lots in Chula Vista and National City and test trucks there.

Can you test trucks at Miramar and Kearny Mesa business parks?

Yes. We test at business parks and yards in Miramar and Kearny Mesa. Call or text (858) 342-8328 to book.

Can you do a dump truck smog check at a San Diego jobsite?

Yes. We come to the jobsite and test dump trucks there. Older diesel trucks without OBD get a smoke opacity test and visual inspection.

We come to you

Trucks in San Diego? We’ll come to you.

One truck or an entire fleet, anywhere in Southern California. Book online, call or WhatsApp. We reply fast.

CallTextWhatsAppBook