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Download ANSI/CAN/UL/ULC 1201, Sensor Operated Backwater Prevention System – Public Access at No Charge

ULC Standards and Underwriters Laboratories Inc. have published ANSI/CAN/UL/ULC 1201:2016 Sensor Operated Backwater Prevention Systems. This joint standard was developed and approved by the joint UL/ULC Technical Committee on Prevention of Storm and Sanitary Backflow, comprised of Canadian and American stakeholders, using a single joint standard development process and fulfilling all requirements for national standards in both countries. The Standards Council of Canada (SCC) provided funding for the work in developing this first edition joint standard. Public access to the published copies of the standards in English and French is available from the following links:

ANSI/CAN/UL/ULC 1201:2016 Sensor Operated Backwater Prevention Systems

ANSI/CAN/UL/ULC 1201:2016 Norme sur les systèmes de prévention de retour d’eau à capteurs

For more information on this joint standard please contact the Project Manager, Mark Ramlochan at