Understanding the CARB Demonstration of Compliance Form

Introduction

Receiving a Clean Truck Check violation notice may require more than simply correcting the underlying problem. In some situations, the California Air Resources Board (CARB) may require documentation demonstrating that the compliance issue has been resolved before an enforcement action can be closed.

One document that may be referenced during this process is the Demonstration of Compliance Form.

This article explains what the Demonstration of Compliance Form is, when it may be required, and how it fits into the overall Clean Truck Check compliance process.

What Is the Demonstration of Compliance Form?

The Demonstration of Compliance Form is a document used by CARB Enforcement when repairs or corrective actions were necessary to return a vehicle to compliance with California’s Clean Truck Check (HD I/M) Program.

After the required repairs or corrective actions have been completed, CARB may instruct the vehicle owner or responsible party to submit the completed Demonstration of Compliance Form along with supporting documentation, such as repair records and required emissions testing results.

Submitting the form allows CARB to review the corrective actions that were taken and determine whether the vehicle has returned to compliance.

When Might You Receive One?

You may be instructed to complete or submit a Demonstration of Compliance Form if:

• CARB has issued a Clean Truck Check violation notice.
• Repairs or corrective actions have been completed.
• CARB requests documentation verifying that the vehicle has returned to compliance.
• The violation notice or other CARB correspondence specifically instructs you to submit the form.

Always follow the instructions and deadlines contained in your violation notice or other official correspondence from CARB.

Information Commonly Included

Depending on the enforcement action, the Demonstration of Compliance Form may include:

• Vehicle identification information
• Company or registered owner information
• Description of the compliance issue
• Description of the repairs or corrective actions performed
• Date the corrective action was completed
• Technician or repair facility information (when applicable)Supporting documentation required by CARB

What You’ll Submit

The supporting documentation required by CARB depends on the vehicle and engine configuration referenced in the enforcement notice.

For vehicles equipped with a 2012 model year or older engine

CARB may request:

• Passing Smoke Opacity Test results
• Emissions Control Equipment Inspection documentation
• Repair invoices or work orders
• A completed Demonstration of Compliance Form
• A signed Statement of Correctness, when applicable

For vehicles equipped with a 2013 model year or newer engine

CARB may request:

• Passing OBD Compliance Test results
• Additional Smoke Opacity Test results, if specifically requested
• Repair invoices or work orders
• A completed Demonstration of Compliance Form
• A signed Statement of Correctness, when applicable

Always submit only the documentation requested in your violation notice or other CARB correspondence.

Providing complete documentation may help avoid unnecessary delays during CARB’s review.

Important Things to Know

Submitting a Demonstration of Compliance Form does not automatically close an enforcement case or remove any associated penalties.

CARB reviews the submitted information and supporting documentation before determining whether the enforcement requirements have been satisfied.

Always retain copies of every document submitted for your records.

Best Practices

Carefully read every instruction contained in your violation notice.

• Submit all requested documentation before the stated deadline.
• Include every supporting document requested by CARB.
• Keep copies of everything you submit.
• Contact CARB if you have questions regarding the documentation requested.
• Verify that your documentation is complete before submitting your packet.

Bottom Line

The Demonstration of Compliance Form is an important part of certain Clean Truck Check enforcement actions. When CARB requests the form, submitting a complete package—including the Demonstration of Compliance Form and all required supporting documentation—can help demonstrate that the compliance issue has been corrected and allow CARB to complete its review.