From water treatment to tap, we provide the accredited expertise and services necessary to meet regulatory requirements.

Our global network of laboratories provide complete performance and regulatory compliance testing and certification services for water products used in residences, commercial buildings, municipal infrastructure, etc.  Backed by over a century of safety science leadership, the UL Marks for water quality and plumbing performance demonstrate product compliance to key standards and requirements for public health officials, municipalities, authorities having jurisdiction, and purchasers of water systems products, components and water treatment chemicals.

Our facilities are fully accredited in the United States and Canada by the American National Standards Institute (ANSI) and the Standards Council of Canada (SCC). UL Marks are recognized and accepted throughout the United States and Canada.

Applicable Plumbing Standards UL Supports

UL test labs are prepared to test your water infrastructure products, plumbing fixtures and fittings, water filtration equipment, water treatment chemicals, and rainwater harvesting products to nationally recognized standards including NSF, ANSI, CSA, ASME, ASTM, ASSE, AWWA, IAPMO and more.  Click here to see many of the standards we can support.

The Benefits of Working with UL

  • Receive direct access to our most technically competent staff that will collaborate with your team from the beginning to guarantee the smoothest evaluation process possible
  • Competitive pricing and fast turnaround times
  • Our experienced staff quickly learn your products, people, and needs, meaning you will not need to teach us with every submittal
  • UL’s engineering knowledge spans many industries so your products can all be evaluated in one place


Find the right service within the UL offering and learn how it meets your particular needs.

Browse pertinent UL thought leadership to help you find the research and insights that matter for your business.

Appliance Advisor, 2018 – Issue 3
Appliance Advisor, 2018 –...
Appliance Advisor, 2018 – Issue 2
Appliance Advisor, 2018 –...
Appliance Advisor, 2018 – Issue 1
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Appliance Advisor, 2017 – Issue 4
Appliance Advisor, 2017 –...
Appliance Advisor, 2017 – Issue 3
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Appliance Advisor, 2017 – Issue 2
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Appliance Advisor, 2017 – Issue 1
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Rainwater Catchment Systems
Rainwater Catchment Systems
An Overview of Regulations for Lead Levels in Drinking Water System Components
An Overview of Regulations for...
Surveillance Requirements for Third-Party Certifiers of Drinking Water Treatment Chemicals
Surveillance Requirements for ...