Catalytic Converter Laws by State 2024

Your catalytic converter is one of the most important parts of your vehicle. It plays a significant role in the emissions your car generates. Therefore, you need to think carefully about the type of catalytic converter you have because it could dictate whether your car is allowed on the road.

If your car does not meet certain emission standards, then you might be required to take your car to the repair shop. It can be expensive to replace a catalytic converter, so it is better to plan for the replacement instead of having an emergency repair. If you want your car to meet emission standards, and you want to reduce your carbon footprint, you need to pay close attention to your catalytic converter.

How Do I Determine What Type of Catalytic Converter I Need?

The best way to determine what type of catalytic converter you need is to take a look at your state regulations. In some states, you must have a CARB-compliant aftermarket replacement converter. This means that your catalytic converter may need to be labeled with a specific number, usually an EO (executive order), that indicates that your catalytic converter complies with the latest regulations.

Do All Vehicles Need To Have CARB-Compliant Catalytic Converters?

Not every vehicle needs to have a special catalytic converter; however, they tend to apply to vehicles made after a specific model year. There is some variation regarding what type of catalytic converter is needed, and it varies from place to place. Colorado and California require vehicles to have this type of catalytic converter if they are more than five years old or the warranty has already expired. Maine also requires its vehicles to have these types of catalytic converters, but they are only required for vehicles that were made after 2001. Finally, New York also requires CARB-compliant catalytic converters, but they are only required on specific vehicles that were made after the mid-90s.

How Do I Know If I Have the Right Catalytic Converter?

To make sure you have the right catalytic converter, you need to take a look at your vehicle's Emissions Control information label. You can typically find this on the underside of the hood. If it is not there, it should be near your strut Tower or radiator support. Then, take a look at the emissions certification to make sure it meets the standard. You will typically either see ARB or CARB. If you live in an area that requires CARB, then you need to make sure you do not see ARB. If your vehicle does not have the correct catalytic converter, you may need to reach out to a mechanic who can clarify what you need.