213.—(1) The Department may by regulations provide that in the case of a vehicle which is an invalid carriage complying with the prescribed requirements and which is being used in accordance with the prescribed conditions—
(a)no statutory provision prohibiting or restricting the use of footways shall prohibit or restrict the use of that vehicle on a footway;
(b)if the vehicle is mechanically-propelled, it shall be treated for such purposes of this Order as may be prescribed as not being a motor vehicle.
(2) In this Article—
“invalid carriage” means a vehicle whether mechanically-propelled or not, constructed or adapted for use for the carriage of one person, being a person suffering from some physical defect or disability; and
“footway” means a way over which the public have a right of way on foot only.]