These Regulations supplement Water and Sewerage Services (Northern Ireland) Order 1973. They also amend, for a limited period, the Water Quality Regulations (Northern Ireland) 1994 and will revoke and replace those Regulations on 1 January 2004. They are primarily concerned with the quality of water supplied in Northern Ireland for drinking, washing, cooking and food preparation, and for food production, and with arrangements for the publication of information about water quality.