How can I tell if my number plates are legible?
Legally, the characters on the number plate must be visible from 20 metres (m) away at any point within an arc of 45 degrees from the surface of the plate, above or to either side of the vehicle. Number plates must be permanently attached to a vehicle so that when it is on level ground the plates are upright, horizontal, and not more than 1.3 m above the ground.
Over time, exhaust fumes, chemicals, stones, the sun, and general wear and tear can damage your plates and make them hard to read. So it is a good idea to check their condition especially if you have older plates.
Some plates are obviously deteriorated or damaged. Others may look okay but are hard to read from a distance or at night. Standard plates are guaranteed for 10 years.
You could be fined up to A$320 for not replacing your old or illegible plates.
Police and transport inspectors regularly check the condition of number plates. It's your responsibility to ensure your plates are in a legible condition and to replace them or clean them if they're not.