By Evan Reid, Founder of Haul Handbook · Updated Jul 18, 2026
Who issues what in California
The permit pages
California-specific requirements
CA# (Carrier Identification Number)
Every motor carrier of property must obtain a CA# from the California Highway Patrol under CVC 34507.5 before DMV will issue a Motor Carrier Permit. CVC 34507.5 also requires the carrier to first obtain a USDOT number from FMCSA and provide it on the CA# application, even for intrastate-only operation. The CA# is the carrier's unique identifier; a new CA# is required when the business entity or FEIN changes (the old number is inactivated with form MC 716 M), and a CA# is not transferable between entities except to correct an error.
CARB Clean Truck Check (HD I/M): who is covered
The Clean Truck Check program (Heavy-Duty Inspection and Maintenance regulation, created by SB 210 of 2019) applies to nearly all non-gasoline heavy-duty vehicles with a gross vehicle weight rating greater than 14,000 pounds that operate in California, including hybrid trucks and buses, commercial and privately owned vehicles, government vehicles, and vehicles registered outside California. Compliance requires reporting the vehicle in the CTC-VIS database, paying an annual compliance fee, and submitting passing periodic emissions tests before operating on California public roads.
CARB Clean Truck Check: registration, fee, and testing cadence
Vehicles are registered and tests are reported in the Clean Truck Check Vehicle Inspection System (CTC-VIS) at cleantruckcheck.arb.ca.gov. The annual compliance fee, set by 13 CCR 2196.1(f) and adjusted each year for the California CPI, is 32.13 dollars per vehicle for compliance deadlines on and after January 1, 2026, rising to 33.12 dollars on and after January 1, 2027. Most vehicles test semi-annually (every six months), with deadlines keyed to the DMV registration expiration month for California-registered vehicles or the last VIN digit for out-of-state vehicles. Beginning October 2027, OBD-equipped vehicles move to testing four times per year (motorhomes and agricultural vehicles stay annual). OBD-equipped vehicles (2013 and newer diesel engines, 2018 and newer alternative fuel engines) get an OBD scan by a CARB-credentialed tester; 2012 and older diesel engines take a smoke opacity test plus a visual emissions control inspection. Tests may be submitted up to 90 days before the deadline.
CARB Clean Truck Check: DMV registration blocks
Noncompliance with Clean Truck Check blocks most California DMV vehicle transactions: the vehicle must be compliant, with no tests or fees due within 90 days of its compliance deadline and no open CARB enforcement actions, before DMV registration can proceed.
CHP Basic Inspection of Terminals (BIT)
The CHP regulates motor carrier safety through the BIT program under CVC 34501.12. Assembly Bill 529 (2013) recast the former Biennial Inspection of Terminals as the Basic Inspection of Terminals: instead of the prior time-based mandate of an inspection once every 25 months, the CHP now selects terminals for inspection based on carrier performance data or the commodity transported. Since January 1, 2016, the DMV collects a Carrier Inspection Fee (CIF) with MCP fees (R&TC 7236) to fund inspections; the CIF is never prorated. Failing BIT inspections leads to MCP suspension (CVC 34505.6): 30 days for a first sanction, 60 days for a second within 36 months, and 90 days plus a 1,500 dollar fine for a third; a suspended permit is revoked if the carrier does not request a CHP terminal re-inspection within 90 days, or after a third BIT failure. Reinstatement uses form MC 115 M-BIT plus the reinstatement fee.
Employer Pull Notice (EPN) enrollment
Motor carriers of property that employ commercially licensed drivers (including family members and volunteers) must enroll in the DMV Employer Pull Notice program, which continuously reports driver record actions to the employer. Owner-operators are enrolled by the DMV in the department's own EPN account. An EPN requester code is a prerequisite for the MCP application when applicable, and failure to enroll required drivers is grounds for permit suspension.
Workers compensation wired into operating authority
California enforces workers compensation through the permit itself: DMV suspends the MCP the same day workers compensation coverage lapses, and a Stop Order from the Director of Industrial Relations triggers permit action under CVC 34634(a). Every employer needs coverage even for one part-time employee; a true owner-operator with no employees may certify exemption, but becomes an employee for coverage purposes when a hiring company schedules their hours and routes or puts the company CA# on their truck.
The California permit stack
Let's break it down. The Motor Carrier Permit is your operating credential; every for-hire property carrier needs it, and it has its own page in this hub. Caltrans permits apply per load, only when a move runs past the legal size or weight limits on the state highway system. CARB's Clean Truck Check is not a permit you apply for once but a standing compliance program for heavy vehicles, with reporting, an annual fee, and periodic tests recorded in the sourced program fields.
Clean Truck Check, day to day
The program covers nearly all non-gasoline vehicles above the weight rating in the sourced field that operate in California, including vehicles registered in other states. You report each vehicle in the CTC-VIS portal, pay the annual compliance fee recorded in the fee field, and submit passing emissions tests on the cadence the program sets for your engine type. Fall behind and the DMV blocks registration transactions for that vehicle until the account is clean.
CHP terminal inspections and the pull notice program
The CHP runs the BIT terminal inspection program. Selection is performance-based: the CHP picks terminals from carrier data or the commodity hauled rather than visiting on a fixed cycle, and the inspection fee is collected with your permit fees. Failing inspections suspends the permit on escalating terms. Alongside it, carriers with commercially licensed drivers enroll in the Employer Pull Notice program, which reports driver record actions to the employer on an ongoing basis.
Compare beyond California
Running multi-state loads? The oversize permit costs by state table compares limits and fees across all 51 jurisdictions, and the permit cost estimator prices a specific load per state.
Frequently asked questions
Which permits does a new California carrier actually need?
- Every for-hire property carrier needs the Motor Carrier Permit. Caltrans oversize permits only come into play when a load runs past the legal limits recorded on the oversize page. Heavy trucks also owe the Clean Truck Check program reporting, an annual fee, and periodic tests.
Who issues oversize and overweight permits in California?
- Caltrans issues them for the state highway system through its transportation permits office. Cities and counties issue their own permits for movement on local roads, so a route can involve more than one issuer.
What is Clean Truck Check and does it apply to my truck?
- It is CARB's emissions compliance program for heavy vehicles operating in California, including ones registered in other states. Covered vehicles report into the CTC-VIS portal, pay an annual fee, and pass periodic tests; noncompliance blocks DMV registration transactions. The sourced fields carry the weight rating line, the fee, and the testing cadence.
What is the BIT program?
- The CHP's terminal inspection program for motor carriers. The CHP selects terminals based on carrier performance data or commodity rather than a fixed interval, and repeated failures suspend the Motor Carrier Permit on escalating terms with a fine at the top step recorded in the sourced field.
Haul Handbook publishes educational information about trucking registration and compliance requirements. This is not legal, financial, or tax advice. Rules, fees, and deadlines change; confirm with the agency before you file or pay.