Public Health Regulation 2012
Current version for 9 April 2020 to date (accessed 1 June 2020 at 16:56)
Part 2 Division 3 Clause 12
12   Maintenance requirements
For the purposes of section 30 of the Act—
(a)  a hot-water system must be maintained in accordance with AS/NZS 3666.2:2011, and
(b)  maintenance must be carried out on a hot-water system to ensure that at any time when the system is in operation it delivers water at each outlet each time the outlet is turned on at not less than 60 degrees Celsius, once any water standing in the pipe to that outlet before it was turned on has been expelled.