Passed your test but DMV still will not issue tags? In our experience the most common cause is an unpaid annual compliance fee, which is separate from testing and is paid only in CTC-VIS. Check your fees, vehicle information and test results there. See the three steps CARB needs, in order.
Testing is only half of it. Every truck has to be registered in CARB's CTC-VIS system, an annual fee paid, and results reported — and the portal is written for regulators, not truck owners. This page covers the parts that aren't a test.
Every truck has to be registered in CARB's CTC-VIS system, an annual fee paid, and testing reported — before any of the testing even matters. The portal is written for regulators, not truck owners, and getting it wrong is how people end up out of compliance without realizing it.
So we help you through it. Send us your fleet and we can assist with registration, entering vehicle information, fee guidance, deadline review, and confirming that submitted results appear in the portal. You remain responsible for your account, fees, deadlines, and compliance — but you don't have to figure it out alone.
Get Help With CTC-VISPassed, failed, not ready, incomplete — what each result actually means and what to do next.
Read the result guide →How often your trucks are due, and what changes when OBD testing goes quarterly in October 2027.
Read the frequency guide →Tell us what you're running — years, VINs, how many. We'll tell you what's due, which trucks the CC40 covers, which ones need us on site, and what it costs. No obligation, no pressure.
530-378-9111Danny Barbosa, owner · English & Spanish
Drop your email and we'll send compliance heads-ups and let you know when we're testing in your area — so you can plan testing before your deadlines. English or Spanish. No spam, unsubscribe anytime.
Need help with your CARB account?
Use CTC-VIS for vehicle reporting, annual fees, deadlines and compliance status. CARB support is separate from A+ Plus testing.