49. (1) Where the Minister is of the opinion that a portable weighing device is suitable for use in determining—
(a) the mass carried by a wheel of a vehicle; and
(b) the axle load of an axle of a vehicle;
he or she may, by a notice in accordance with the form in the Schedule that is affixed to the device, approve the device for the purposes of this Act.
(2) In any proceedings in a court, a notice—
(a) that purports to be a notice under subsection (1) and to be signed by the Minister; and
(b) that is affixed, by any means, to a device;
is evidence of the matters stated in the notice and of the facts on which they are based.