Is RC Endorsement Mandatory After CNG Installation?

What Is RC Endorsement?

Your vehicle's Registration Certificate (RC) records details including its fuel type. When you convert a petrol vehicle to run on CNG, the RC generally needs to be updated ("endorsed") to reflect that your vehicle now has an additional fuel type.

Why It Matters

An un-endorsed RC after a CNG conversion can create complications with insurance claims, vehicle inspections, and resale, since the registered fuel type no longer matches the vehicle's actual configuration. It is generally treated as a required step after conversion, not an optional one — though exact requirements can vary, so please verify current rules with your local RTO.

The General Process

Typically this involves submitting proof of a compliant CNG installation along with the required forms to your local RTO. Processes and required documents can differ between states and RTOs, and can change over time.

• Complete a compliant CNG installation with proper documentation from your installer
• Prepare the forms and supporting documents required by your local RTO
• Submit the application and follow up as required by your RTO's process

How We Help

After your installation, our team can guide you through the documentation and help you prepare the paperwork typically required for RC endorsement. See our RC Endorsement Assistance service for details, and always confirm the current requirements with your local RTO since rules can vary.