Copies of the Water Supply (Water Fittings) Regulations 1999 and their Schedules and Statutory Instruments (1999 No.1148 and No.1506) are available from HMSO and on the links below. These apply in England and Wales.
Copies of the Byelaws 2014 (Scotland) are available on the link below:
Copies of the Water Supply (Water Fittings) Regulations (Northern Ireland) 2009 are available on the link below:
The Government has also published a Guidance Document relating to the Schedules, which is relevant to England, Wales, Scotland and Northern Ireland. This is available on the link below:
WRAS publishes the “Water Regulations Guide”, which includes the text of the Water Supply (Water Fittings) Regulations 1999 and Scottish Byelaws, with details water industry guidance and interpretations. WRAS also provides other publications, which are free. For further information visit WRAS.
Water suppliers do not provide a design service for installations, but they will try to answer individual queries from customers, designers, builders and installers about the interpretation of the regulations.