15B.— (1) The Minister may specify national standards in respect of the design, construction or maintenance of public roads.

(2) Any person, road authority or public authority carrying out works involving the design, construction or maintenance of public roads shall comply with the national standards (if any) specified by the Minister under subsection (1).

(3) The Minister may request the Authority to amend any standards specified by it under section 19(1)(e) and the Authority shall comply with any such request.]