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Regional Certification and Approvals

NSF helps manufacturers of water treatment, distribution, plumbing and residential water filtration products gain access to global markets.

We simplify the process of meeting strict regulatory requirements across multiple countries or regions in your market. Our experts can help you navigate this complex process by bundling testing and certification 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.

Resources

  • NSF and Carso are premier, respected marks in the global water testing and certification industry. This combined expertise provides many benefits for clients, including expedited approval time and deep knowledge of the regulations.
    Christelle Autugelle
    Materials Test Department Manager, Group Carso
  • NSF’s knowledge of International regulations and global regulatory requirements is exceptional. I have worked with NSF for over eight years and found their knowledge and insight to be valuable and integral to our business strategy.
    Ginger Patera
    Senior Global Product Development Manager, Whirlpool

How NSF Can Help You

Get in touch to find out how we can help you and your business thrive.

What’s New with NSF

  • NSF Ends UK’s Three-Year Testing Gap with REG 31 Testing Designation

    May 20, 2026
    NSF’s Oakdale laboratory becomes the UK’s sole facility offering comprehensive BS 6920 and REG 31 testing, closing a critical drinking water safety gap.
    Read the Story

  • NSF Annual Review and Impact Report 2025 Now Live

    April 20, 2026
    NSF has published its Annual Review and Impact Report 2025, detailing the organization’s progress over the past year and outlining strategic priorities for 2026.
    Read the Story