Every Oak Park resident who owns or leases a car is required to purchase a vehicle sticker by July 15 to get the lowest rate, which increases by $20 after the deadline. Fees for each sticker depend on type of car, handicapped status, age and/or military status. Failure to purchase a license could also result in a $78 ticket, officials said. Residents can make online purchases at https://www.oak-park.us/events/vehicle-license-deadline.