Regulation 4 Centre lines
(1)
The centre line of–
(a)
a special road authorised by a scheme under section 16, or
(b)
a proposed highway directed by an order under section 10 to become a trunk road,
shall be indicated by a black band not more than 1.5 millimetres wide on a plan on a scale of not less than 1/10,000 showing up-to-date details of the area within 67 metres each side of the centre line.
(2)
The centre line of a new highway to be constructed in pursuance of an order under section 14 or 18 shall be indicated on a plan on a scale of not less than 1/2500.