How do ranking points expire?
A result keeps 100 percent of its value for 12 months, 50 percent from 12 to 24 months and 0 after 24 months. Age is measured as days between the event and today divided by 30.4375, so full value lasts 365 days. How points expire.
Related questions
Answers follow the published KBN rules. The verify page is the authority for any licence or certificate, and where the rules do not cover a case, the Ranking Committee decides. Helpful counters on this demo site started from sample values.