Your vehicle will be visually inspected for the presence of the catalytic converter, which was originally installed by the vehicle’s manufacturer. The catalytic converter is a post-combustion control device that converts toxic exhaust emissions from your vehicle’s engine into non-toxic substance. It must be fully intact for your vehicle to be considered for an emissions test.
Removal of or tampering with a catalytic converter is a federal offense. If your vehicle is missing a catalytic converter, it will fail the emissions test.