UK Certifications and Approvals

Apply for NSF REG4 certification, NSF TMV certification, WRAS approval or BS 6920 testing to comply with UK regulations.

NSF tests and certifies plumbing products to meet the regulatory requirements required to sell water products in the United Kingdom. We also submit test reports required for industry certifications.

Our Services

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.

NSF REG4 Certification
Demonstrate plumbing product and material compliance with the UK’s Water Supply (Water Fittings) regulations and byelaws through a fast, efficient, robust process.
Testing for BS 6920
Test your products for a quicker path to BS 6920 compliance.
TMV Certification
Apply for verification testing and certification services for the TMV2 and TMV3 UK-based certification requirements.
WRAS Approval Services
If you need WRAS Approval for your water fitting products sold in the UK market, NSF offers full product testing and we submit your reports to WRAS.

Resources

Whitepaper: The New Compliance Map for Water-Contact Products
Article
This whitepaper provides an overview of global frameworks and what they mean for water contact product manufacturers seeking to commercialise their products in multiple regions.
Navigating the New EU Regulations: Materials and Products in Contact with Drinking Water
Article
This paper discusses challenges and solutions related to the harmonisation of materials testing and evaluation, particularly for plastic granulates and pipes.
The NSF REG4 Certification for the UK Helps Plumbing Products Show Compliance
Article
The NSF REG4 certification scheme for the UK market allows plumbing products and materials to show compliance with the Water Supply (Water Fittings) Regulations 1999.

How NSF Can Help You

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What’s New with NSF

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.
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UK Certifications and Approvals

Our Services

NSF REG4 Certification

Testing for BS 6920

TMV Certification

WRAS Approval Services

Resources

Whitepaper: The New Compliance Map for Water-Contact Products

Navigating the New EU Regulations: Materials and Products in Contact with Drinking Water

The NSF REG4 Certification for the UK Helps Plumbing Products Show Compliance

How NSF Can Help You

What’s New with NSF

NSF Annual Review and Impact Report 2025 Now Live