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Final Specification for Tank-Type Toilets

On June 02, 2014, EPA released a revised version of the WaterSense Specification for Tank–Type Toilets (Version 1.2). The specification changes are minor in nature and are intended to provide clarification of the existing requirements. The changes also align the specification with recent revisions to the American Society of Mechanical Engineers (ASME) A112.19.2/Canadian Standards Association (CSA) B45.1 Ceramic Plumbing Fixtures standard and ensure that tank-type toilets receiving the WaterSense label are certified and labeled consistently, in accordance with EPA’s intent, and will continue to meet consumer expectations for efficiency and performance. Manufacturers have until December 02, 2014, to be in compliance with the new requirements.

Version 1.2 of the WaterSense Specification for Tank-Type Toilets replaces Version 1.1, which EPA released on May 24, 2011. For more information about the WaterSense specification development process for toilets, please see the Tank-Type Toilet Specification Background Materials and the Tank-Type Toilet Frequent Questions page.

For more information about other specifications, please visit our compendium page.