Here all kids need to get the safety certificate. Kids under 10 cannot operate a quad if they are under 10 unless they are on private land while performing farm-related work operations. Kids 10-11 can only ride a quad on land owned by their parent or guardian, while they are under adult supervision, and have their safety certificate. 12-15 they need their safety certificate and be under adult supervision (they can now ride on public trails). 2 wheeled vehicles have no age restriction at all - they just have to have the safety certificate and be under adult supervision.