Mobile CTC Testing in Diamond Bar
Where the 57 and 60 Freeways Meet
Skip the testing station. Our CARB-credentialed technician comes directly to your Diamond Bar location. Get your fleet tested without taking your trucks off the road.
CTC Testing Throughout Diamond Bar
Whether your fleet operates from the Gateway Corporate Center, the Diamond Bar Boulevard commercial district, business parks near the 57/60 interchange, or anywhere in Diamond Bar, we come directly to you. We know the area—from the Tres Hermanos Ranch border to the Chino Hills edge—and serve trucking companies, moving operations, and commercial fleets throughout the city.
Diamond Bar was incorporated in 1989 as one of the last master-planned communities in Los Angeles County. Built on former ranch land, the city was designed with modern infrastructure and excellent freeway access. Its position at the LA/Inland Empire boundary has made it a natural hub for regional distribution and commercial services.
Major Corridors We Serve
ZIP Codes We Serve
Flexible Scheduling
Early mornings, evenings, or weekends. We work around YOUR schedule.
Strategic Freeway Location
Diamond Bar sits at a critical freight crossroads. We know these routes and can reach your location quickly.
SR-57 (Orange Freeway)
Major north-south route connecting Orange County to the San Gabriel Valley. Multiple Diamond Bar interchanges.
SR-60 (Pomona Freeway)
East-west corridor to downtown LA and Inland Empire. Intersects with SR-57 in Diamond Bar.
Business Parks & Industrial Zones
We serve fleets throughout Diamond Bar's major industrial parks and warehouse districts.
Gateway Corporate Center
Premier business park at the 57/60 interchange featuring Class A office and commercial space with excellent visibility.
Why Diamond Bar Fleets Choose Mobile Testing
Your trucks need to keep moving. Taking vehicles to a testing station means lost time and operational headaches. We eliminate that.
We Come to You
Your yard, warehouse, or lot. No driving to testing stations.
Your Schedule
Early mornings, evenings, weekends. Test when it works for you.
Fast Testing
~2 minutes per vehicle. Fleet of 10? Under 30 minutes total.
Instant Results
Results uploaded to CARB immediately. Compliant on the spot.
We Work With Businesses Like Yours
Our mobile CTC testing service is designed for Diamond Bar businesses that rely on heavy-duty vehicles.
Vehicles We Test
Serving Diamond Bar's Leading Businesses
From major distribution centers to local fleet operators, we provide mobile CTC testing for businesses across Diamond Bar.
Simple, Fair Pricing
Same price for all Diamond Bar locations. No travel fees. Volume discounts for larger fleets.
Volume discounts for larger operations. Contact for quote.
Get Started“We run a regional trucking operation out of Diamond Bar. They tested our 8 trucks at the yard before our morning runs. Couldn't ask for better service.”
Common Questions About CTC Testing in Diamond Bar
Also Serving Nearby Areas
Have trucks at multiple locations? We serve the entire San Gabriel Valley.
Ready to Get Your Fleet Tested?
We come to your Diamond Bar location. Same-week appointments available.