ISO 17025:2025 The 36-Month Clock Started
April 21, 2026
ISO published the third edition of ISO/IEC 17025 on September 27, 2025, and the transition deadline is September 30, 2028. Three years sounds generous. It is not. Most reassessments scheduled for 2027 and beyond will be conducted against the new edition, and a lab that starts in month thirty will not finish. Here is what changed and what a credible…










