Catalytic Converter Replacement Law

Anyone considering improperly replacing or tampering with his car's catalytic converter will be violating the 1988 EPA Clean Air Act, which could mean a fine of up to $25,000.

No Tampering

Tampering with catalytic converters now includes private individuals as well as muffler shops and other automotive repair businesses. The goal is to zero in on efforts to,"bypass, defeat, or render inoperative any emission control device or element of design of any emission control system," according to the EPA website.

Salvage Yard Purchases

It's probably not a good idea to consider visiting a salvage yard to find a used converter on a junked car, because, unless it has been tested, it is a violation of the law. In addition, salvage and junk yards would be held liable for selling used and untested converters that were eventually installed.

Muffler Shop Guidelines

EPA has strict guidelines for muffler shops that must be followed regarding replacing catalytic converters. For example, muffler shops must restore the vehicle's exhaust system, "to their original catalyst configuration if they work on that part of the exhaust system," suggests the EPA website. In addition, if the entire exhaust pipe is being replaced, the catalytic converter must be replaced as well.

References

• EPA: What You Should Know About Using, Installing or Buying Aftermarket Catalytic Converters
• EPA: Exhaust System Repair Guidelines
• Catalytic Converter Laws
• Auto Parts Life Tips: Emission Control Tips
• Racing Beat: Frequently Asked Questions Emission Laws and Regulations

Resources

• Texas Commission on Environmental Quality: Tampering of Vehicle Emission Controls
• California EPA: Aftermarket Catalytic Converters
• Body Shop Business: Blowing Smoke -- Servicing Exhaust Systems
• Brake and Front End: Curbing Catalytic Converter Thefts