Water Systems
Guarantee the quality, performance, and safety of water products and systems with NSF’s extensive range of certifications and services.
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Use of NSF consulting services or attending NSF training sessions does not provide an advantage, nor is it linked in any way to the granting of certification.
Municipal Water Systems and Products
Have your municipal water products and systems thoroughly tested and certified. This includes everything from water storage tanks and reservoirs to water meters and individual components.Plumbing Products
Verify the compliance of your plumbing products with the necessary standards and plumbing codes.Materials and Ingredients
Verify the compliance of materials and ingredients with both North American and international standards.Water Filtration
Test and certify water filtration and treatment systems, tailored for municipal, residential, or commercial use.Treatment Chemicals and Media
Ensure global regulatory compliance by obtaining certification for your water treatment chemicals and media. The safety of drinking water is inherently linked to the quality of chemical aids and filtration media employed in its treatment.Onsite Wastewater and Water Reuse Systems
Ensure that your on-site wastewater treatment or water reuse units meet all regulatory requirements.Pool and Spa Products
Test and certify your pool and spa equipment and water treatment chemicals to guarantee their adherence to national health, building, and construction codes.Water and Wastewater Standards
NSF's consensus standards cover an extensive range of products for the water and wastewater industries to help ensure the quality and safety of these products in the marketplace.Information Security Management Systems
Strengthen information security for your business, satisfy customer expectations and do your part in protecting the water sector from risk.Quality Management Systems
Demonstrate to your customers, regulators and the public your commitment to quality by establishing and certifying your management systems.
Resources
EU-MHR Technical Webinar
WebinarCountdown to EU-MHR: Everything You Need To Know. Get useful insights about key requirements, certification and how to prepare for the upcoming changes under the new Drinking Water Directive.
EU-MHR Readiness Research Report
ArticleNew NSF research reveals a significant EU-MHR readiness gap: while 99% of manufacturers feel ready, only 7% have completed a gap assessment.
Trusted Water Safety, Backed by Science
ArticleExplore how Samsung Electronics advances water purifier safety and performance through innovation, rigorous validation, independent certification, and recognized filtration standards.
How NSF Can Help You
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What’s New with NSF
NSF Launches Protocol 549 for Glyphosate Reduction Claims
October 14, 2026P549 is the first standard globally that validates glyphosate reduction performance of water filtration systems and products.
NSF Welcomes Hanjun Kwon, Managing Director, APAC
September 14, 2026Experienced business leader to drive sustainable growth, organizational development and operational excellence across the Asia-Pacific region.
NSF Welcomes Nicole Parent Haughey to Board of Directors
September 10, 2026NSF's appointment of Nicole supports the organization's continued focus on long-term growth and transformation.
Thomas Vyles Honored With 2026 Walter F. Snyder Environmental Health Award
August 19, 2026The award honors Walter F. Snyder, co-founder and first executive director of NSF, and pioneers whose work advances environmental and public health.