California Catalytic Converter Laws

Selling Catalytic Converters in California

California has some of the country’s toughest catalytic converter laws—covering emissions standards and theft prevention. But if you legally own your converter and follow state guidelines, you can still sell it.

RRCats helps California sellers ship and sell converters safely and legally.

What the California Law Says

Under California Vehicle Code § 10852.5 and other regulations:

Selling or buying a used catalytic converter is only legal if:

  • You’re a licensed auto dismantler, dealer, manufacturer, or repair shop

  • You’re a core recycler with a fixed business location and records

  • You’re an individual seller who can prove legal ownership — with a title or registration that matches a VIN engraved on the converter

Converters must be permanently marked with the VIN or a traceable ID. Cash payments are not allowed. All transactions must follow CARB emissions rules as well.

⚠️ Selling a converter without proper documentation or as an unlicensed party is illegal in California.

Can You Still Sell Your Converter?

✅ Yes — if it’s OEM and you have the right paperwork. California allows individuals to sell used catalytic converters if they can prove ownership and follow CARB and state guidelines.

At RRCats, we help verify everything and ensure your sale is legal and traceable.

🔍 Get a Quote for Your Converter

Selling to RRCats from California

We’ve worked with thousands of California sellers. Here’s how we make it simple:

  • Text us photos + serial number for a quick quote

  • Ship your converter with proper documentation

  • Include title or registration matching the VIN engraved on the converter

  • Get paid by check or electronic transfer — no PayPal fees, no cash

We confirm your converter is OEM or CARB-compliant before completing the sale.

Need Help?

Not sure if your converter is eligible or what to include? 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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