Require hard to counterfeit licensing stickers for each vehicle that need to be re-applied to each scooter yearly. Sell a limited number of numbered stickers. I

Require hard to counterfeit licensing stickers for each vehicle that need to be re-applied to each scooter yearly. Sell a limited number of numbered stickers. If you find a vehicle without a sticker, you know they aren't following the requirements. To prevent sticker tampering, stickers can be placed behind a transparent piece of tempered glass or forego stickers entirely and use bolted on metal plaques.