Washington Catalytic Converter Laws

Selling Catalytic Converters in Washington

If you’re in Washington and want to sell a used catalytic converter, it’s essential to understand the state’s legal framework. Washington has recently passed strong new laws aimed at reducing converter theft — but legal sales are still absolutely possible if you follow the rules.

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What the Washington Law Says

Key provisions in Washington include:

  • Under HB 2153 (2024) dealers and recycler‑processors must be licensed and converters must carry permanent markings (e.g., last eight digits of the vehicle VIN).
  • RCW 9A.82.180 mandates that any detached catalytic converter removed from a vehicle must be clearly marked with the last eight digits of the originating vehicle’s VIN, and unmarked converters may be seized.
  • RCW 46.70.350 requires vehicle dealers, at the time of sale, to offer or apply the permanent marking to the converter and to disclose to the purchaser if they opt out of the marking.

Can You Still Sell Your Converter?

✅ Yes! You can legally sell a catalytic converter in Washington as long as you are the lawful owner and the converter can be documented and marked as required. Working with a fully compliant buyer like RRCats ensures you follow state law.

Selling to RRCats from Washington

Here’s how we help you sell safely and efficiently:

  • Text us a photo of your converter and any visible serial/part numbers for a free quote.
  • Ship it using our pre-labeled kit or your own box — we accommodate sellers in Washington.
  • Get paid fast via check, or other secure, traceable method — no PayPal fees.
  • We handle compliance and documentation, ensuring the converter meets Washington’s marking and ownership standards.

Since RRCats is headquartered in New Jersey, we can accept shipments from Washington under full compliance, giving you a hassle‑free, fully legal route to sell your converter.

Got More Questions?

Want to check your converter’s value, confirm it’s OEM, or see which documents you’ll need? Visit our Visit our Cat Guide »

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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.*

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