Historical
IAPMO IS 3-2003
Installation Standard For COPPER PLUMBING TUBE, PIPE AND FITTINGS
Installation and material of copper tube, pipe and fittings in drainage, vent, and water systems shall comply with this standard and the current edition of the Uniform Plumbing Code [UPC], published by the International Association of Plumbing and Mechanical Officials (IAPMO).
International Association of Plumbing and Mechanical Officials [iapmo]