American National Standards Institute (ANSI)
- ANSI/NSPI-3-99, "Standard for Permanently Installed Residential Spas"
- ANSI/NSPI-4-99, "Standard for Above-ground/On-ground Residential Swimming Pools"
- ANSI/NSPI-5-99, "Standard for Residential In-ground Swimming Pools"
- ANSI/NSPI-6-99, "Standard for Residential Portable Spas"
- ANSI/ASME A112.19.8M, "Suction Fittings for Use in Swimming Pools, Wading Pools, Spas, Hot Tubs and Whirlpool Bathing Appliances"
- ANSI/NSF 14, "Plastics Piping System Components and Related Materials"
- ANSI/NSF 50, "Circulation System Components and Related Materials for Swimming Pools, Spas / Hot Tubs"
- "Standard Methods for the Examination of Water and Wastewater," American Public Health Association (APHA), American Water Works Association (AWWA) and Water Environment Federation (WEF), ISBN No. 0875530478 - Reference book for water and wastewater sampling and analysis
- "Manual of Cross-Connection Control," University of Southern California Foundation for Cross Connection Control and Hydraulic Research Reference book for cross connection control, including backflow prevention