After regulation 48A of the Principal Regulations insert —
An electric powered passenger car must have fixed conspicuously to the front and rear number plates a label that is—
(a) made of durable material; and
(b) at least 25 millimetres wide and 25 millimetres high; and
(c) mounted as a diamond; and
(d) reflective blue; and
(e) marked "EV" in capital letters at least 6 millimetres high.".