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About CTC Mobile Services

We're a locally-owned mobile emissions testing company serving the San Gabriel Valley. Our mission is simple: make Clean Truck Check compliance as easy as possible for fleet operators.

Clean Truck Check Credentialed Tester

Our Story

CTC Mobile Services was founded with a simple observation: fleet operators in the San Gabriel Valley were losing valuable time and money sending trucks to testing facilities for Clean Truck Check compliance. Trucks sitting idle at a testing station aren't making deliveries, hauling loads, or generating revenue.

We saw an opportunity to do things differently. Instead of making you come to us, we bring the testing equipment to you. Your trucks stay on your lot, your drivers stay on schedule, and you get the same CARB-compliant results—without the hassle.

Based right here in City of Industry, we understand the unique needs of the warehouses, distribution centers, trucking companies, and logistics providers that make this region thrive. We're not a big corporation—we're your neighbors, committed to helping local businesses stay compliant and keep moving.

Why Mobile Testing?

Traditional testing facilities require you to send trucks off-site, wait in line, and deal with lost productivity. We eliminate all of that.

Traditional Testing

  • Drive trucks to a testing facility
  • Wait in line with other vehicles
  • Lose hours of productivity per truck
  • Work around facility hours

CTC Mobile Services

  • We come to your location
  • No waiting—we test on your schedule
  • Zero downtime for your fleet
  • Early morning, evening, weekend availability

What We Stand For

Convenience First

Your trucks are your business. We come to you so your fleet stays productive.

Flexible Scheduling

Early mornings, evenings, weekends. We work around your operations, not the other way around.

Local Knowledge

Based in City of Industry, we understand the San Gabriel Valley's trucking and logistics industry.

Transparent Pricing

No hidden fees, no surprises. You know exactly what you'll pay before we arrive.

CARB Credentialed Testing

CTC Mobile Services is a CARB (California Air Resources Board) credentialed Clean Truck Check tester. This means our testing equipment, procedures, and technicians meet all state requirements for emissions compliance testing.

When we test your vehicle, the results are uploaded directly to CARB's system. There's no additional paperwork or follow-up required—your compliance status is updated in real-time.

  • Official CARB-approved testing equipment
  • Trained and certified technicians
  • Real-time results uploaded to CARB
  • Full compliance documentation provided
Clean Truck Check Credentialed Tester

Credentialed Clean Truck Check Tester

Authorized by the California Air Resources Board

Serving the San Gabriel Valley

We're based in City of Industry and serve businesses within a 20-mile radius, covering the heart of the San Gabriel Valley's industrial zone.

Ready to Work With Us?

Let us take the hassle out of Clean Truck Check compliance. Schedule your mobile inspection today.