(cf 1991 Act, s 10E)
The Chief Health Officer may from time to time decide, in relation to any
supplier of drinking water--
(a) whether or not it should issue a boil water advice for the drinking water it supplies or has available for supply, and
(b) whether or not it should provide additional information to the public in connection with any boil water advice it issues, and
(c) whether or not a boil water advice is to be retracted or corrected.