The Vehicle Conversion - Compressed Natural Gas/Liquified Petroleum Gas (CNG/LPG) Certificate of Qualification allows you to maintain and repair CNG and LPG vehicle fuel systems under an operating permit.
This certificate does not allow you to work on CNG-related systems as part of a liquefied natural gas-equipped vehicle. An LNG endorsement must be acquired for this purpose and attached to your certification.
There is no exam for this certificate.
How to apply
Installing or altering a CNG or LPG system
If you would like to install or alter a CNG or LPG system in a vehicle, you will need specific manufacturer training and an endorsement from us.
To have an endorsement attached to your certification, you must provide a record of successful training completion. Send this record to us via email, and we will attach an endorsement to your Vehicle Conversion (CNG/LPG) certificate. In some cases, multiple endorsements may be required to perform certain work.