How to Demonstrate Compliance After Receiving a CARB Violation Notice
- Knowledge ID
- KO-CTC-0009
- Program Area
- Compliance
- Topic Type
- Process Guide
- Reading Time
- 2 min read
- Last Reviewed
- Jul 25, 2026
- Applies To
- Owner Operator, Fleet Manager, Service Provider — On Road Heavy Duty Diesel, Agricultural, Motorhome Rv, Specialty On Road — Both registration
- Official Source
- https://ww2.arb.ca.gov/our-work/programs/CTC
Quick Answer
After receiving a CARB Clean Truck Check Violation Notice, vehicle owners must complete the corrective actions identified in the notice and provide the required documentation demonstrating that the vehicle has returned to compliance before the violation can be resolved.
Demonstrating Compliance After a CARB Violation Notice
Section titled “Demonstrating Compliance After a CARB Violation Notice”Receiving a CARB Clean Truck Check Violation Notice does not necessarily mean the matter cannot be resolved. In many cases, the notice explains the corrective actions required and the documentation that must be provided before the violation can be cleared.
Before You Begin Have Your Violation Notice Available
This article walks through the general process of demonstrating compliance after receiving a CARB Clean Truck Check Violation Notice.
If you would like to follow along using an example, you can review our redacted example CARB Clean Truck Check Violation Notice.
Download the Redacted Example CARB Violation Notice (PDF)
Step 1 — Read the Entire Notice
Review every page of the violation notice carefully.
The notice contains important information regarding:
- The reason the violation was issued.
- Required corrective actions.
- Applicable deadlines.
- Response options.
Additional forms that may be required.
Step 2 — Complete Any Necessary Repairs
If repairs are required to return the vehicle to compliance, complete those repairs before attempting to demonstrate compliance.
Retain all repair documentation and receipts.
Step 3 — Complete the Required Compliance Test
Depending on the vehicle and violation, CARB may require a passing compliance test before the violation can be resolved.
Follow the instructions contained within the violation notice.
Step 4 — Complete Any Required Forms
Some notices require additional documentation, such as a Demonstration of Correction Form or other supporting information.
Complete every required document before submission.
Step 5 — Submit Documentation
Submit the requested documentation according to the instructions contained in the notice before the applicable deadline.
Failure to respond before the deadline may result in additional enforcement actions.
Keep Copies of Everything
Maintain copies of:
- Repair invoices
- Compliance test results
- Submitted forms
- Correspondence
- Proof of submission
Good recordkeeping can help resolve future questions if they arise.
Bottom Line
Demonstrating compliance generally involves correcting the underlying issue, completing any required testing, and submitting the requested documentation within the required timeframe.
Following the instructions provided in the violation notice carefully can help avoid additional enforcement actions.