U.S. EPA WaterSense® Certification
Protecting and preserving the nation’s water supply is critical to the United States’ economic future and human health
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 a 2014 U.S. Government Accountability report, 40 out of 50 state Water Managers expect water shortages under average conditions in some portion of their states over the next decade. Each American uses an average of 88 gallons of water per day at home, but can easily reduce that figure by 20 percent by making simple changes.
For more information about the program, visit U.S. EPA WaterSense®.
IAPMO R&T
LICENSED AND ACCREDITED CERTIFYING PARTNER
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Certification Partner | Since the program’s inception, IAPMO R&T has been a licensed certifying body for the U.S. EPA’s WaterSense® program, working with manufacturers to certify their products’ compliance to the WaterSense® standards. |
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Accreditation Trailblazer | IAPMO R&T was also among the first certification bodies to be ANSI accredited as a U.S. EPA WaterSense® third-party certification body. |
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Compliance Assurance | ANAB-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. |
IAPMO R&T
CERTIFIED PRODUCTS
As the leading provider of WaterSense certification in the United States, IAPMO R&T has certified thousands of products to the growing list of specifications and continues to add more products as new specifications are released. Products certified include:
HIGH-EFFICIENCY LAVATORY FAUCETS
TANK TYPE HIGH-EFFICIENCY TOILETS
FLUSHING URINALS
SHOWERHEADS
WEATHER-BASED IRRIGATION CONTROLLERS
FLUSOMETER-VALVE TOILETS
SPRAY SPRINKLER BODIES
SOIL MOISTURE-BASED IRRIGATION CONTROLLERS
POINT-OF-USE REVERSE OSMOSIS SYSTEMS
EPA SPECIFICATION UPDATES AND REVISIONS
For assistance in certifying your products for the WaterSense Program, please Contact Us
In 2024, the US EPA released the first Point of Use Reverse Osmosis WaterSense specification. A point-of-use RO system can potentially reduce water contaminants such as lead, volatile organic compounds (VOCs), PFAS, arsenic, and others.
A typical point-of-use RO system generates anywhere from five to 10 gallons of reject water for every gallon of treated water produced. A point-of-use RO system bearing the WaterSense label will send 2.3 gallons or less down the drain for every gallon of treated water it produces. For the most up to date information from the EPA, please visit the EPA WaterSense website.
In 2024, the US EPA revise the WaterSense Specification for Tank-Type Toilets, affecting certifications for dual-flush tank type toilets with a rated full-flush volume greater than 1.28 gpf.
Effective July 1, 2025, the maximum flush volume will be 1.28 gpf for both single-flush toilets and the full-flush mode of dual-flush toilets. Dual-flush toilets manufactured on or after July 1, 2025 with a full-flush volume over 1.28 gpf will no longer be eligible for the WaterSense label. For the most up to date information from the EPA, please visit the EPA WaterSense website.
In 2024, the EPA released draft revisions to its WaterSense specification for private lavatory faucets and faucet accessories, potentially lowering the maximum flow rates due to the market shift in response to state-specific regulations. Canada and multiple U.S. states have adopted efficiency standards requiring private lavatory faucets to flow at a rate no higher than 1.2 gpm.
There is also consideration to expand the scope of the specification to include other faucet types, such as kitchen faucets, as numerous states and Canada have adopted efficiency standards requiring kitchen faucets to flow at rates below the current U.S. federal maximum flow rate. For the most up to date information from the EPA, please visit the EPA WaterSense website.
WATERSENSE CERTIFICATION
Lavatory faucets and lavatory faucet aerators
Water efficiency test
Showerheads and handheld showers
Testing includes water efficiency test, spray force test, and spray coverage test
IMPORTANT NEWS:
- Georgia’s Water Stewardship Act (SB370) requires lavatory faucets, showerheads, toilets and urinals to be WaterSense® certified.
- Starting in July 2012, the New York City plumbing code requires increased water efficiency for all new water closets (toilets), urinal, private lavatory faucets and showerheads and it requires that fixtures going forward meet the specifications required for EPA’s WaterSense label.
- In 2014, the Colorado General Assembly passed Senate Bill 14-103 (SB103) which requires that all lavatory faucets, showerheads, tank type toilets, and flushing urinals sold in the State of Colorado on or after September 1, 2016 to be WaterSense labeled.
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, please email us at info@iapmort.org.