Colorado Catalytic Converter Laws

Selling Catalytic Converters in Colorado

Colorado has strict laws to prevent catalytic converter theft — but if you legally own your converter and can prove it, you can still sell it. RRCats helps ensure every sale is legal, recorded, and easy.

What the Colorado Law Says

Under Colorado Revised Statutes § 18-13-111 and SB23-009, it is illegal to buy or sell a detached catalytic converter unless specific rules are followed:

  • Sellers must:

    • Be the registered owner of the vehicle it came from or a licensed auto business

    • Provide photo ID, proof of ownership (title or registration), and the VIN

    • Sign an affidavit confirming legal ownership

  • Buyers (like RRCats) must:

    • Maintain a photograph or video of both the seller and the converter

    • Keep transaction records for 180 days

    • Register with the Scrap Theft Alert System

    • Pay by check or traceable method for sales over $300

Violations of these rules can result in misdemeanor charges depending on the value of the transaction.

Can You Still Sell Your Converter?

✅ Yes — if you have the paperwork. Individuals and licensed businesses in Colorado can still sell catalytic converters as long as they follow the legal documentation process.

Get a Quote for Your Converter

Selling to RRCats from Colorado

Here’s how we help Colorado sellers stay compliant:

  • Text us a photo + serial number for a quote

  • Ship your converter with proper documents

  • Include photo ID, title or registration, and VIN

  • We pay securely — via PayPal, no cash

  • We record and verify all transactions as required by law

Need Help?

Not sure what’s required when shipping from Colorado? See how it works »

Ready to Get a Quote?

Please fill out the form below or text us pictures to get a custom quote for your catalytic converter.

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Check corners, under shields, and down pipes for numbers. Not all catalytic converters have numbers.
Drag & Drop Files, Choose Files to Upload You can upload up to 10 files.
To get a quote sooner, attach photos of any serial numbers and an overhead pic of the catalytic converter(s).
Drag & Drop Files, Choose Files to Upload You can upload up to 3 files.
Upload a Photo: Please include a clear photo of one of the following documents: Vehicle or equipment, Registration, Title, or Bill of Sale. Why do we need this? We are required by law to verify proof of ownership before purchasing certain equipment or materials to prevent theft and ensure lawful transfer. For more details, refer to New Jersey Scrap Metal Laws – N.J.S.A. 13:1E-99.12 (or insert exact link to the statute you want to reference). This requirement is mandatory to receive a quote.

Who Is RRCats?

Nationwide catalytic converter buyers

Fair. Consistent. Reliable.

“Their online system works great. Verifying ID and proof of ownership worked smoothly and gave me confidence that I was dealing with a reputable company.”

~ Customer, Mike K.*

“Very fast service! I submitted my info for a quote and got it the next morning. The only thing that was slow about the process was me packing it all up to ship out!”

~ Customer, Steven C.*

Read More Reviews

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