White Paper: Data Integrity and Warning Letters
May 12, 2020
In this document, you will find information on key findings from data integrity-related warning letters from 2005 through 2019.
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What’s New with NSF

NSF Achieves European Accreditation for Drinking Water Product Certification Ahead of 2027 EU Deadline
July 22, 2026The ISO/IEC 17065 accreditation from BELAC complements NSF’s testing capacity, enabling end-to-end support for EU Drinking Water Directive (DWD) readiness ahead of the January 2027 deadline.
NSF Awards World-First Community Catch Certification to Orkney Crab Fishery
July 13, 2026Milestone certification sets a new benchmark for small-scale fishery sustainability and social responsibility.
NSF Issues First-Ever MSC Certification for an Eel Fishery to Perupez S.A.C. and Sakana del Peru
June 19, 2026Third-party certification plays a key role in independently verifying the sustainability of seafood operations.
NSF Ends UK’s Three-Year Testing Gap with REG 31 Testing Designation
May 20, 2026NSF’s Oakdale laboratory becomes the UK’s sole facility offering comprehensive BS 6920 and REG 31 testing, closing a critical drinking water safety gap.