Questions and answers below are paraphrased from CARB's overview fact sheet so you have a concise in-app checklist. Always defer to CARB’s published fact sheet and your CTC-VIS notices for authoritative wording, deadlines, and fees.
What is Clean Truck Check?
A regulation requiring emissions-control systems on covered heavy-duty vehicles — generally diesel and alternative-fuel rigs over 14,000 lb GVWR using California public roads — to be tested for proper operation, even if the vehicle is not California registered (with specific carve-outs such as out-of-state motorhomes).
Pay the annual compliance fee on schedule (amount updates with CPI).
Submit passing Clean Truck Check emissions when required.
Resolve outstanding enforcement flags.
Testing mechanics
Roadside monitors can screen fleets starting in 2023; vehicles flagged may receive a Notice to Submit to Testing with a CARB-defined response window. Compliance tests must come from CARB-credentialed testers who satisfy CARB’s training / renewal rules. Passing results can be uploaded within a CARB-published window before each compliance deadline — see the sheet for timelines.
Legal definitions (e.g., “alternative fuel”) are spelled out on the fact sheet — import them directly from CARB when drafting compliance memos.
Fact-check workflow (recommended)
Open CARB’s overview fact sheet in a second tab and compare wording, fees, and dates.
Log into CTC-VIS for account-specific deadlines and payment methods.
Cross-check enforcement questions with CARB hotline / email published on official pages (e.g., hdim@arb.ca.gov, 1-866-634-3735 as listed by CARB).
Use this app’s tester list as an operational directory tied to your roster — not a substitute for CARB credentialing status; confirm tester credentials in CARB systems when in doubt.
