roadworthy

Roadworthy is an adjective used to describe a motor vehicle that is safe and legal to operate on public roads. In many jurisdictions, roadworthiness is enforced through inspections and certificates that confirm the vehicle meets minimum safety and emission standards. A roadworthy certificate may be required to register a vehicle, transfer ownership, or sell it, and it may need periodic renewal.

Typical inspection areas include brakes, steering and suspension, tyres and wheels, lighting and signalling, seat belts, windscreen and wipers, horn, exhaust system and emissions, and the general condition of the chassis and body for leaks or damage. Failure in any critical area can render a vehicle unroadworthy and subject to repair before it can be driven legally.

Regional variation exists in the enforcement and terminology. In the United Kingdom, an MOT test is required annually for most vehicles and confirms roadworthiness at the time of testing. In Australia, a roadworthy certificate or equivalent is required in some states for vehicle transfer or registration. New Zealand requires a Warrant of Fitness for most vehicles to be driven legally, with periodic renewal. In the United States, roadworthiness is typically addressed through state safety inspections rather than a nationwide certificate; requirements and timing vary by state.

The concept is used by authorities, insurers, and manufacturers to indicate that a vehicle is fit for operation on public roads.