OBD Monitors Are Ready For Clean Truck Check Emissions Testing
On-Board Diagnostic (OBD) Readiness Criteria For CARB Testing
There should be No check engine light on instrument cluster and No Active, Pending or Permanent Codes in OBD memory. In addition since the last code clearing vehicles must have accumulated:
- at least five (5) Warm-Up Cycles, or
- at least 200 miles travelled, or
- at least 400 minutes engine run time, or
- at most two (2) incomplete OBD Monitors.
If there is a Permanent Code in OBD memory, the truck can still be tested and Pass and the Code will be ignored if the vehicle has:
- at least 15 Warm-Up Cycles, or
- at least 400 miles traveled, or
- at least 800 minutes engine run time, or
- at most one (1) incomplete OBD Monitor.
Diesel vehicle PDTCs are related to after treatment failures in the majority of the situations. After treatment systems monitors are not required to complete in order to pass Smog Check (any two “not ready”
allowed)
What Are The Requirements To Pass Clean Truck Check Diesel Smog Test?
If your vehicle had some repair done recently or battery got drained too low to start the vehicle may not be ready for Clean Truck Check testing immediately. An OBD test submitted to CARB that does not have sufficient run time and number of warm-up cycles will get a Not Ready test result and will not meet the emissions compliance testing requirements. If your vehicle test shows “Not Ready” result, you should continue operating the vehicle under normal business practices for a few days and if no Check Engine Codes return, then have the vehicle retested.
To successfully pass emissions test and obtain Clean Truck Check certificate vehicles must registered VIN in CTC-VIS portal database and have completed a number of engine Warm-Up Cycles, miles driven and engine run time since the last repair or the last Diagnostic Trouble Code Clearing.
No Check Engine
Malfunction Indicator Light (MIL) must be off and there should not be any emissions related diagnostic trouble codes in vehicles memory. Pending, Stored Or Permanent.
Monitor Readiness
Readiness monitors determine whether emissions control systems have completed self test necessary to run and check for emissions related faults. Including data like distance traveled, number of warm-up cycles and engine run time since the last Check Engine codes cleared.
No Dead Battery
Disconnecting battery or needing to jump start the truck will erase OBD data and will clear saved readiness monitor status. You will need to complete multiple drive cycles until truck is ready for testing.
California CARB Diesel Smog Compliance Service
Mobile commercial diesel truck testing and reporting to California Air Resources Board to stay in emissions compliance per CARB Heavy-Duty Vehicle Inspection and Maintenance Program. Heavy-Duty Vehicle Inspection and Maintenance compliance testing must be performed by CARB credentialed tester who completed HD I/M training course, passed examination and received CARB Authorized Tester Certification. Onsite CTC mobile service available 7 days a week in Southern California Call us (858) 255-1122
We come to you and get your truck CARB Compliant On-Site.
Our mobile technicians are CARB certified and credentialed testers with latest approved equipment to test, read and transfer emissions data to Clean Truck Check Vehicle Inspection System (CTC-VIS) database.
Why Choose Our Services?
- ✅ Mobile Clean Truck Check Diesel Smog testing at your location.
- ✅ On demand same day services available.
- ✅ Instant reporting and updating test results using CTC-VIS system.
- ✅ Update vehicle record with CARB and DMV to show compliance.
“Clean Truck Check testing is a smog check for commercial diesel trucks.”
Heavy-Duty Vehicle Inspection and Maintenance Program implemented by CARB
Starting January 1st 2025 California Air Resources Board HD I/M program will require all commercial vehicles with gross weight over 14,000 pounds to test emission control systems and submit a reading snap shot to CARB database. As this new regulation took affect this year, many business owners got caught by surprise when commercial truck DMV registration renewal was showing incomplete and marked non CARB compliant vehicle. To complete registration renewal requires diesel emissions test: smoke opacity test or OBD reading snap shot.
Save Valuable Time With Our Mobile Service
✅ We offer convenient Clean Truck Check San Diego testing at your location in All County. Doesn’t matter if you need to test one truck or several.
✅ Digital test results data upload provides instant CARB compliance certification and updates DMV truck record.
✅ Mobile service available 7 days a week.
We Test Semi Trucks, Box Trucks, Tow Trucks, Buses, Truck Tractors, Motorhomes and RVs.
Start Clean Truck Check Compliance Process
- Create owner account at https://cleantruckcheck.arb.ca.gov/
- Enter vehicle information.
- Pay vehicles annual compliance fee.
- Get your vehicle tested by credentialed tester in your area. Call (858) 255-1122
- Pass emissions compliance test and results will be automatically submitted and will show up in your CTC-VIS owners account.
- Your vehicle is now Clean Truck Check Compliant.
Please note if you are trying to get compliance certificate ASAP, keep in mind there are possible delays due to payment processing. Depending on the type of payment you may have to wait 1-7 business days. Credit or Debit card payments takes 1-2 business days. ECheck payments can take up 5-7 business days.
How New Diesel Smog Clean Truck Check program Impacts Fleet Owners?
How Clean Truck Check Compliance May Affect Your Business?
Unfortunately it is becoming more complex to run transportation and logistics business in California.
Starting in 2025 new truck diesel emissions testing requirements might cause delays and DMV holds on registration and plates renewals. Maintaining active CARB registration will help to minimize down time for your trucks.
Third Party Enforcement
In addition freight facilities, cargo ports, rail-yards, loading and holding facilities and even freight brokers and national vendors are mandated to collect and report. right to request proof of Clean Trucks Check compliance certification or check truck status through California Electronic Greenhouse Gas Reporting Tool (Cal e-GGRT) to grant entry and / or collect and maintain records of all vehicles entering freight facility that are not compliant with Clean Truck Check.
Avoid Delays and Loss of Business
We recommend register your business and create an account login for your company on CTC-VIS portal. Even if you have not received non renewal notice or if your vehicle is not registered in California. Early registration will speed up CARB compliance process in the future.
Who is subject to Clean Truck Check Compliance?
All non-gasoline heavy-duty commercial vehicles operating in California with a Gross Vehicle Weight Rating (GVWR) over 14,000 pounds. That includes Diesel, Bio-Diesel, Propane, Natural Gas, Ethanol, Methanol engines.
- Commercial trucks and buses
- Agricultural vehicles
- Transit buses
- Motor Homes for Personal Use
- Motor Homes for Commercial Use
- Hybrid heavy-duty vehicles
Zero tailpipe emissions fuels like Electric and Hydrogen vehicles are excluded.
Mobile CARB Compliance Diesel Testing Near Me
Available For Hire Credentialed Testers in San Diego area. Mobile on demand CARB compliance truck testing service. We offer fast and professional Clean Truck Check emissions testing at your location. Chual Vista, Otay Mesa, Poway, Escondido, Oceanside, National City, Encinitas, Lakeside, El Cajon.
We come to you, the same or next day, carrying all necessary testing equipment and software to test and update your compliance certificate onsite. Testing available for 2013 year and newer vehicles with OBD J1937 and J1979 connectors.
Contact us with your CARB Compliance questions or to schedule mobile truck emissions testing appointment call (858) 255-1122.
