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WaterSense® Certification 

The WaterSense® program offers consumers a simple way to make product choices that use less water, with no sacrifice to quality or product performance. Products bearing the WaterSense® mark are certified more water-efficient than products that don’t meet WaterSense® standards.

Using water more efficiently will conserve supplies for future generations. According to U.S. EPA estimates, at least 36 states are projecting water shortages by 2013. Each American uses an average of 100 gallons of water per day at home, but can easily reduce that figure by 30 percent by making simple changes.

Since the program’s inception, IAPMO R&T has been an approved certification body for the U.S. EPA’s WaterSense® program, working with manufacturers to certify their products’ compliance to the efficiency standards. IAPMO R&T was also among the first certification bodies to be ANSI accredited as a U.S. EPA WaterSense® third-party certification body. ANSI accreditation adds value to the certification process, ensuring that certification bodies demonstrate compliance with the WaterSense® product certification system and are capable and competent to carry out their responsibilities.

Protecting and preserving the nation’s water supply is critical to the United States’ economic future and human health.

Scope of Products Certified:
• High-Efficiency Lavatory Faucets
• Tank Type High-Efficiency Toilets
• Flushing Urinals
• Showerheads
• Commercial Pre-Rinse Spray Valves

• Weather-Based Irrigation Controllers

Manufacturers seeking WaterSense® certification can utilize IAPMO R&T for the same trusted evaluation service on which they’ve always relied. Our certification speed and unparalleled customer service make IAPMO R&T the ideal choice for manufacturers seeking a competitive edge.

For more information on certifying WaterSense® products with IAPMO R&T, call (909) 472-4100 or e-mail us at or

For more information on the U.S. EPA WaterSense® program, visit

WaterSense® Partnership Certificate

UPDATE NEWS: The United States Environmental Protection Agency (EPA) on May 20, 2011 published Version 1.1 of its WaterSense® Tank-Type Toilet Specification. The new specification replaces Version 1.0, which EPA released in January 2007, and can be viewed in its entirety at