Renewing your personal trainer certification varies: NASM, ACE, and AFAA...
https://wiki-global.win/index.php/NASM_vs_ACE_vs_AFAA_vs_NFPT_Renewal_Cycle_Differences:_Navigating_Your_Recertification_Schedule
Renewing your personal trainer certification varies: NASM, ACE, and AFAA usually require renewal every two years, while NFPT asks annually