The Water Regulations Advisory Scheme (WRAS) is a conformance mark that demonstrates that an item complies with high standards set out by water regulations official proclamation in 1999 in the United Kingdom. It is enforced in the UK by the water supply companies. WRAS covers all plumbing systems, water fittings, and equipment supplied, or to be supplied, with water from the public water supply. It is not illegal to install a product such as water fittings in the UK without the WRAS mark but it may have to have compliance in other ways.

All water meters come with a pulse reader attached allowing the volume of water to be measured using a data logger. These water meters are also used for achieving BREEAM WAT 02 and 03 water consumption and water leak detection.