New South Wales Driver Knowledge Test (DKT) Practice

Obstructing clear vision of your number plates is indeed an offence at any time because number plates must be clearly visible and legible to allow for proper identification of vehicles by law enforcement and other drivers. The visibility of number plates is crucial for enforcing traffic laws, ensuring safety, and maintaining accountability on the road. Authorities require that number plates are not obscured by any objects, dirt, or modifications, as failure to comply can hinder legal processes and violate traffic regulations.

In contrast, the other options suggest conditions or scenarios under which the obstruction might not be an offence, but they misrepresent the law. Regardless of the weather conditions, the visibility of the number plates remains a requirement. Additionally, the notion that it could only be an offence when parked or is not monitored does not align with the enforcement of traffic regulations, which apply to vehicles in operation as well.