131.—(1) DHSSPS may by order provide that Article 127(1) is to have effect as if for “one milligram per litre” there were substituted a lower concentration specified in the order.
(2) An order under paragraph (1) may make different provision for different geographical areas, or for some such areas and not others.
(3) An order shall not be made under paragraph (1) unless a draft of the order has been laid before, and approved by a resolution of, the Assembly.