Public register
ISO/IEC 17021-1 §8.2
Check a certificate
Enter a certificate number and you will see its status against the live record, immediately. This includes certifications we have suspended or withdrawn — the point of a register is that it tells you the awkward answers too.
If a number will not resolve
A number that returns nothing was not issued by UMA. Certificates we have withdrawn still resolve here and say so, so "no record" is a meaningful answer rather than an ambiguous one.
If you are holding a document that says UMA issued it and this page does not recognise it, tell us — that is something we want to know about.
You can also browse the full directory of certifications in force.