Montana Catalytic Converter Laws
Selling Catalytic Converters in Montana
If you’re in Montana and have a catalytic converter to sell, there are some important rules to keep in mind. Montana has passed laws to help reduce converter theft — but you can still sell it legally when you follow the requirements.
What the Montana Law Says
Under Montana’s law (House Bill 255, which became effective in 2023) the following apply:
- A seller who is not a licensed salvage metal dealer may not sell more than one detached catalytic converter to a salvage metal dealer in a day.
- A salvage metal dealer may not provide payment (or consideration) to a seller until at least 72 hours after the most recent transaction with that seller.
- For transactions involving a catalytic converter, the dealer may pay no more than $30 in cash or stored value device or electronic funds; additional payment must be by check.
- A person commits the offense of illegal transportation of catalytic converters if they knowingly transport more than one detached catalytic converter without the required acquisition record. Penalties include a fine up to $5,000 and/or up to 1 year imprisonment.
- Dealers must maintain detailed acquisition records (including seller ID, vehicle used, description of property, amount paid) for at least 2 years; records must be available for law enforcement.
Can You Still Sell Your Converter?
✅ Yes! If you own the converter legally and you have documentation, you can sell it — even in Montana, which has stricter rules.
RRCats accepts converters from individuals, mechanics, and businesses in Montana. We’ll help you with the required documentation and ensure your shipment is handled correctly.
Sell Your Converter Today
Selling to RRCats from Montana
Here’s how it works when you sell your catalytic converter through RRCats:
- Text us a photo of your converter and any visible serial number for a quote
- Ship it using your own box or request a pre‑labeled kit from us
- Get paid fast via check, direct deposit, or other secure method
Because RRCats is based in New Jersey, you can legally ship your converter out of state and avoid some of the stricter Montana in‑state dealer rules. We handle compliance and documentation so you don’t have to worry.
Need Help?
Want to check your converter’s value or see if it’s OEM? Visit our Cat Guide »
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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.*
