 In all provinces and the territory of Yukon, licence plate serials are alphanumeric and usually assigned in ascending order.The letters I, O, Q and U are generally not used to avoid confusion with 1, 0 and V; additionally, Ontario does not use the letter G and British Columbia does not use the letters Y and Z.The Northwest Territories and Nunavut use all-numeric serials, which are also assigned in ascending order.