Stamp D-193-86 on an aftermarket catalytic converter indicates which CARB reference?

Stamp D-193-86 on an aftermarket catalytic converter indicates which CARB reference?

• A. CARB EO#
• B. Model year
• C. Manufacture date
• D. Warranty status

Answer: (A)

The stamp indicates a CARB Executive Order number. That D-193-86 mark is CARB’s approval reference for that particular catalytic converter design, showing it has been tested and approved for use under California standards. It tells you the part is legal to install in California and under what conditions, not the vehicle’s model year, manufacturing date, or warranty status. If you need specifics, you’d look up that EO to see the exact vehicle applications and conditions of use.

The stamp indicates a CARB Executive Order number. That D-193-86 mark is CARB’s approval reference for that particular catalytic converter design, showing it has been tested and approved for use under California standards. It tells you the part is legal to install in California and under what conditions, not the vehicle’s model year, manufacturing date, or warranty status. If you need specifics, you’d look up that EO to see the exact vehicle applications and conditions of use.