“97A. (1) Subject to the following subregulations, a person shall not carry out work on a water supply system drawing its water from an Authority pipe except in accordance with the requirements of Australian Standard 3500.
Penalty: $1,000.
“(2) Where—
(a) the requirements of Australian Standard 3500 are inconsistent with standards specified in these Regulations; and
(b) the work was carried out in accordance with the standards specified in these Regulations;
subregulation (1) does not apply in respect of that work.
“(3) The Engineer may approve work on a water supply system drawing its water from an Authority pipe completed before 31 December 1994 and complying with the standards specified in these Regulations as in force on 1 October 1992.”.