* Under the seat: The chassis number may be located on a metal tag or decal affixed to the bottom of the seat, or on the frame just below the seat.
* On the frame: The chassis number might be inscribed on the scooter's frame, usually on one of the metal bars that make up the structure of the scooter. Look for a series of numbers and letters engraved or stamped into the metal.
* On the motor: Sometimes, the chassis number can be found on a label or decal attached to the scooter's motor.
If you can't find the chassis number in any of these locations, refer to the owner's manual or contact the manufacturer of your mobility scooter for assistance.