Selling a catalytic converter.
Ohio's new catalytic converter law, House Bill 210, takes effect October 5, 2026. It applies to every scrap yard in the state. Here is what to bring so your trip to the scale is a short one.
What changed on October 5
- You have to show where the converter came from. A converter is no longer bought on a handshake. The paperwork depends on who is selling, below.
- Converters are paid by check. No cash at the window.
- Photo ID, and a photo. We copy your ID and photograph you and the part. Every scrap yard in Ohio has to do this now.
- Diesel filters count. Diesel particulate filters (DPF) and diesel oxidation catalysts (DOC) are treated as catalytic converters under this law.
What to bring
For individuals
- Your photo ID.
- The title or registration for the vehicle it came off, or
- a bill from a collision repair shop or licensed car dealer showing the converter was removed and replaced, listing the vehicle's make, model, year and VIN.
- One converter per person, per day.
For auto repair shops
- Business proof, on file once: Ohio Secretary of State registration, a vendor's license, or a copy of your advertising.
- Only converters off vehicles your shop serviced.
- The driver's photo ID.
- Once your proof is on file, there is no per-converter ownership paperwork and no daily limit.
No paperwork?
The law creates a state affidavit form a private seller can sign in place of paperwork. The state has not published it yet. It is due about early January 2027.
Until then, we can't buy a converter without documentation. No scrap yard in Ohio can. We will post here the day the form is available.
Call before you come in. We'll tell you exactly which document to bring.
This page is general information, not legal advice. It reflects Ohio Substitute House Bill 210 (136th General Assembly), effective October 5, 2026. State rules and the affidavit form are still pending and may change what is required. Confirm your own obligations with your attorney.