If your licence carries a condition because of a physical disability and that disability may affect your driving, displaying the designated mark on the front and rear of the car is an absolute legal duty, not merely a duty to make an effort.

Explanation

For a physical disability, the law says only that the driver "must endeavour" to display the designated mark on the front and rear of the car when the disability may affect driving. That is a best-effort duty. It differs from the rule for hearing impairment, which flatly prohibits driving without the mark.

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