In Victoria a certificate of roadworthiness is generally required when a vehicle is sold or reregistered or as part of a mandatory periodic inspection requirement for a bus or taxi. In some cases a certificate of roadworthiness is also required to clear a Vehicle Defect Notice. A certificate of roadworthiness can only be issued by a Licensed Vehicle Tester operating from a nominated facility such as a garage or service station. Before a certificate of roadworthiness can be issued for a vehicle, the vehicle must be inspected and found to be free of wear or deterioration or alterations that would make it unsafe for normal use on the road.