Title, commencement and applicationE+W
1.—(1) The title of these Regulations is the Water Supply (Water Quality) Regulations 2018 and they come into force on 15 June 2018.
(2) Parts 1 to 9 and 11 of these Regulations apply in relation to the supply of water by every—
(a)water undertaker whose area is wholly or mainly in Wales; and
(b)water supply licensee so far as relating to licensed activities using the supply system of any water undertaker whose area is wholly or mainly in Wales.
(3) Part 10 of these Regulations applies to local authorities in Wales, as regards the discharge of functions under that Part, in relation to every—
(a)water undertaker whose area is wholly in Wales;
(b)water undertaker whose area is partly in Wales and partly in England, but only in respect of the part in Wales; and
(c)water supply licensee so far as relating to licensed activities using the supply system situated in Wales of any water undertaker.