What is a key requirement for the catalytic converter?

A catalytic converter plays a crucial role in reducing harmful emissions generated by a vehicle's engine. Its primary function is to convert toxic gases such as carbon monoxide, hydrocarbons, and nitrogen oxides into less harmful pollutants before they are released into the atmosphere. For a vehicle to pass the Maryland State Inspection, it is essential that the catalytic converter is both present and functioning as intended. This means that the converter must not only be physically installed in the exhaust system but also operating effectively to ensure compliance with emissions standards.

The other options do not reflect essential functions or requirements of a catalytic converter. For example, painting the converter to match the vehicle color does not influence its emission control capabilities. A manufacturer warranty is not a requirement for inspection; it pertains to product reliability and coverage rather than functional operation at the time of inspection. Lastly, while noise suppression might be a consideration for other vehicle components, it is not a function of the catalytic converter, which is specifically focused on emissions control.