A parking violation is the act of parking a motor vehicle in a restricted place or for parking in an unauthorized manner. It is against the law virtually everywhere to park a vehicle in the middle of a highway or road; parking on one or both sides of a road, however, is commonly permitted. However, restrictions apply to such parking, and may result in an offense being committed. Such offenses are usually cited by a police officer or other government official in the form of a traffic ticket.
Parking at a parking meter without paying, or for longer than the paid time.
Parking in a handicapped zone without an appropriate permit.
Many vehicle codes define it to be an infraction to park on the public byway without the vehicle being properly licensed and registered, with expired or missing license plates or license plate 'tabs', without proper safety vehicle inspection decal, etc.
Parking without a zone permit in places where parking is severely impacted (such as a residential zone permit, issued to help preserve parking availability for those who live in the permit zone).
Parking without special permit, where one is needed (like a parking for employees of a company).
Parking with the parking permit or payment receipt not visible in the prescribed way, like upside down.
Parking at curb locations designated (usually through signage and/or curb or pavement painting) for special purposes such as passenger zones (for loading and discharge), commercial vehicle zones (for freight or service trucks and vans), police or government vehicle zones, etc.
Parking at locations during scheduled street sweeping.
Parking at locations during posted construction or maintenance operations.
Parking for longer than the maximum time, often that is 24 hours.
Parking facing against the direction of traffic (considered confusing to moving drivers, especially at night).
Parking outside marked squares, for example angle parking where only parallel parking is allowed.
Parking near a red zone.
Fines or parking citations may result if any of the above criteria are met.