Built for busy operators
Owner-operators, small fleets, RV owners, and local businesses get a clear, no-jargon path through testing and reporting.
Clean Truck Check support
Friendly, straightforward CARB testing for heavy-duty vehicles.
Coastline CARB Testing helps fleets, owner-operators, RV owners, and businesses across LA County and Orange County with Clean Truck Check testing, account support, and practical compliance help.
What we do
Local help that makes Clean Truck Check simple.
California's Clean Truck Check program requires periodic emissions compliance testing for most heavy-duty vehicles operating in the state. We make that requirement easy to handle: we identify the right testing path for your vehicle, perform or coordinate the test, and help you confirm everything is reported correctly so you stay compliant and on the road.
The full compliance picture
From the test itself to NST notices and CTC-VIS account questions, we help with the parts that usually cause confusion.
Services
Testing and compliance support built around how Clean Truck Check actually works.
Most newer heavy-duty vehicles use OBD testing, while older non-OBD vehicles generally require smoke opacity testing plus a visual inspection under Clean Truck Check workflows.
OBD testing
For applicable OBD-equipped vehicles, we help coordinate compliant testing using the approved process required for Clean Truck Check reporting.
Smoke opacity testing
Non-OBD vehicles generally follow the SAE J1667 smoke opacity path, which is part of the Clean Truck Check program for older engines.
Visual inspection
We help with emissions control equipment inspection support for the vehicles that need the visual portion of the program.
Mobile / on-site service
On-site scheduling can help reduce downtime for customers managing multiple vehicles or tight operating windows.
NST help
If you received a Notice to Submit to Testing, we help you understand the testing path and what needs to be submitted next.
CTC-VIS account help
Vehicle owners are responsible for their Clean Truck Check reporting and account activity, so we also help customers navigate CTC-VIS and confirm status.
Coverage area
Serving Los Angeles County and Orange County.
We focus on a tight Southern California service radius so we can offer responsive scheduling and mobile, on-site testing for local fleets and operators. If your location is near these areas, reach out — we may still be able to help.
Los Angeles County
- Long Beach
- Carson
- Compton
- Downey
- Norwalk
- Cerritos
- Commerce
- Vernon
- Wilmington
- San Pedro
Orange County
- Anaheim
- Santa Ana
- Buena Park
- Fullerton
- Garden Grove
- Orange
- Irvine
- Tustin
- Costa Mesa
- Huntington Beach
How it works
Simple steps, clear communication.
We keep the process easy to follow, especially for first-time customers dealing with deadlines, VIN-specific requirements, or CTC-VIS questions.
1
Tell us about the vehicle
Share your VIN, plate, engine year, and whether you received an NST or upcoming compliance notice.
2
We confirm the testing path
We help identify whether you need OBD testing, opacity testing, visual inspection support, or account guidance.
3
Get tested and verify status
After testing, we help customers verify that results appear correctly in the proper Clean Truck Check workflow and account view.
Pricing
Straightforward starting pricing.
$139+Pricing starts at $139 and varies based on location, vehicle type, test type, scheduling needs, and whether mobile/on-site service is required.
What affects price
Every job is a little different, so the final quote depends on a few details.
Vehicle type
OBD and non-OBD testing paths can differ in complexity and time.
Location
Travel distance and whether service is on-site can change the total price.
Fleet size
Multi-vehicle visits may be priced differently than single-vehicle calls.
Account support
NST review or CTC-VIS help can add a support component depending on the situation.
FAQ
Answers to the questions customers ask first.
What vehicles usually need Clean Truck Check testing?
The program generally applies to almost all non-gasoline heavy-duty vehicles over 14,000 pounds GVWR that operate in California.
Do all vehicles use the same test?
No. Newer applicable vehicles usually use OBD testing, while older non-OBD vehicles generally follow smoke opacity and visual inspection requirements.
Can you help if I got an NST?
Yes. If you received a Notice to Submit to Testing, the owner generally needs to submit a passing compliance test within the required time window, and we help you understand that next step.
Can you help with my Clean Truck Check account?
Yes. Owners are responsible for their Clean Truck Check account and reporting, and we can help you navigate CTC-VIS, registration flow, and result checking.
Do you offer mobile or on-site testing?
Yes. We offer mobile, on-site service across LA County and Orange County to help reduce downtime for fleets and operators with multiple vehicles or tight schedules.
Contact
Request testing or ask a compliance question.
Approachable local service for LA County and Orange County customers who want a quicker, clearer path through CARB testing.
Call or text
(562) 249-8133
(562) 249-8133
Call or text us anytime — we serve LA County and Orange County.