decertify

/diːˈsɜːrtɪfaɪ/
verb
  1. To remove official certification or authorization from someone or something.
    • The government can decertify a union if it breaks the rules.
    • The board voted to decertify the election results.
    • They decided to decertify the training program due to low standards.
Antonyms
What does "decertify" mean? | whatsthatwordmean | whatsthatwordmean