This depends on the capacity of the scooter you choose. For either mopeds or scooters with capacities from 49 - 125cc, you can ride with L-plates if you've completed your CBT. The CBT is Compulsory Basic Training for riding your scooter or moped and must be retaken every two years. If you want to go for a full licence, an AM licence will allow you to ride mopeds with a capacity of up to 50cc, and an A1 licence will allow you to ride mopeds or scooters up to 125cc. You can complete/pass the CBT and AM at 16, and the A1 at 17.