These are Backflow Protection Assemblies, and they are recognized as Water Protection and Life Safety Devices by the following Agencies:
- The Ontario Ministry of the Environment (M.O.E., Ontario Safe Drinking Water Act)
- The Canadian Standards Association (C.S.A. Standard E64.10)
- The International Standards Organization (I.S.O. Environmental Standard 14001)
- Hazard Analysis Critical Control Points (H.A.C.C.P.)