Motorhome, Marine & Equipment Testing
Certified onsite testing for motorhomes, marine vessels, and equipment across California—helping you stay compliant with minimal downtime.
Mobile Clean Truck Check Testing for Diesel Motorhomes
California-registered diesel motorhomes with a gross vehicle weight rating over 14,000 pounds may be subject to Clean Truck Check reporting, annual fees, and emissions testing.
We help motorhome owners complete the required testing and resolve CARB or DMV compliance issues.
We Come to Your Motorhome
There is no need to drive your motorhome to a testing facility.
Our credentialed tester travels to the location of the motorhome and completes the required OBD test or smoke opacity and visual inspection.
Testing may be available at your home, storage facility, RV park, repair facility, or another suitable location.
Motorhome Compliance Services
We can help with:
Clean Truck Check emissions testing
Determining which type of test is required
CTC-VIS account setup
Registering the motorhome in the CARB system
Reviewing testing and fee deadlines
Paying outstanding compliance fees
Correcting inaccurate vehicle information
Resolving missing test results
Providing guidance throughout the process
Assisting with CARB-related DMV registration holds
Frequently Asked Questions
How Often Is Testing Required?
Most motorhomes subject to the CARB Clean Truck Check program are required to complete emissions compliance testing once per year. The exact testing schedule depends on your vehicle and CARB requirements. Our team will help you determine your testing dates, monitor deadlines, and ensure your motorhome remains compliant.
What Type of Test Will My Motorhome Need?
Most diesel motorhomes with 2013 or newer engines require an OBD test.
Motorhomes with 2012 or older diesel engines generally require a smoke opacity test and a visual inspection of the emissions control equipment.
We can confirm the appropriate test before scheduling your appointment.
Registration Hold or SB 210 Notice?
A Clean Truck Check registration hold may occur when the motorhome has not been properly reported, annual fees remain unpaid, or a passing test has not been submitted.
Send us the notice or contact our team. We will review the situation and explain what is needed.
Commercial Harbor Craft & Cargo Handling Equipment
Bay Area Mobile Diesel Testing provides certified onsite opacity testing for commercial harbor craft and cargo-handling equipment throughout California. We help owners and operators complete required testing, document the results and address failed tests or other compliance concerns.
Commercial Harbor Craft Testing
We are CCDET IV certified to perform opacity testing on qualifying commercial harbor craft main propulsion engines.
We provide testing for a variety of vessels, including:
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Tugboats and workboats
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Ferries and excursion vessels
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Commercial fishing vessels
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Crew and supply boats
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Barges and dredges
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Other qualifying commercial vessels
Our team coordinates testing around the vessel’s location and operating schedule and provides the documentation needed for CARB reporting and recordkeeping.
Cargo Handling Equipment Testing
We provide onsite opacity testing for covered diesel equipment operating at California seaports and intermodal rail yards.
Equipment may include:
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Yard trucks and hostlers
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Forklifts and container handlers
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Loaders and excavators
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Rubber-tired gantry cranes
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Maintenance and support equipment
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Other diesel-powered cargo-handling equipment
Testing can be coordinated for multiple pieces of equipment during the same visit to minimize downtime and keep your operation organized and compliant.
