(1) A tyre on a motor vehicle must not have cleats or other gripping devices that could damage road surfaces.
(2) Except at tread wear indicators, a tyre fitted to the vehicle must have a tread pattern at least 1.5 millimetres deep in a band that runs continuously:
(i) for a vehicle with a GVM over 4.5 tonnes — at least 75% of the tyre width that normally comes into contact with the road; or
(ii) for another vehicle — the tyre width that normally comes into contact with the road; and
(b) around the whole circumference of the tyre.
(3) A vehicle must not be fitted with a tyre that has been treated by recutting or regrooving the tread rubber, unless the tyre was:
(a) constructed with an extra thickness of rubber designed for recutting or regrooving; and
(b) labelled to indicate the construction.