Fleet CARB Clean Truck Check Sacramento
Mobile Clean Truck Check $50 OBD *and $150 OVI*
Your 2025/2026 CARB Compliance Guide
The New Mandate: 14K Diesel Trucks Bi-Annual Testing is Here
Have you been tested once? The mandate is 2x/year. Starting in 2025, the California Air Resources Board (CARB) requires most heavy-duty vehicles (over 14,000 lbs GVWR) to pass an emissions compliance test twice per year. This program, known as Clean Truck Check, ensures emissions control systems are functioning correctly, with stricter enforcement rolling out through 2026.
The High Cost of Non-Compliance
Failing to comply can lead to significant operational and financial penalties. As enforcement ramps up, neglecting these rules will directly impact your ability to operate in California.
Substantial Fines
Penalties are designed to remove any economic benefit of non-compliance and can accumulate quickly for each non-compliant vehicle.
DMV Registration Holds
A compliance hold can block registration renewal until all CARB requirements are met.
Which Test Does Your Vehicle Need?
Requirements depend on engine model year. Two categories ensure accurate emissions checks.
On‑Board Diagnostics (OBD) Test
Digital scan of the vehicle’s computer for fault codes and emissions data.
- 2013+ Model Year Diesel Engines
- 2018+ Model Year Alternative Fuel Engines
- Gasoline Engines over 14,000 lbs GVWR
Smoke Opacity & Visual Inspection
For vehicles without advanced OBD, a smoke opacity test (pre‑2013 SAE J1667) plus visual inspection.
- Pre‑2013 Model Year Diesel Engines
- Pre‑2018 Model Year Alternative Fuel Engines
Fleet Impact Analysis
Most heavy-duty vehicles operating in California are now subject to Clean Truck Check. The chart shows estimated percentages requiring regular testing.
Estimated percentage of CA heavy-duty vehicle fleet requiring compliance.
Key Compliance Timeline
Key deadlines are active. Plan now to avoid last‑minute issues.
Jan 2025
Bi-Annual Testing Officially Begins
Oct 2025
Critical Testing Window Active
2026
Full Enforcement Ramps Up
Ready to Get Compliant?
Schedule your mobile testing appointment today. We come to you across Northern California to minimize downtime.
