Almost all certification programs require the applicant to be 18+ and certified in cardiopulmonary resuscitation (CPR) and the use of automatic external defibrillator (AED). In addition, having a high school diploma or GED is required by almost all certifying organizations.  You can take a look at our ACE certification reviewAFAA certification review, our NASM certification review, our AFPA certification review, our NFPT certification review and our  NSCA certification review for help making the decision about which certification is right for you.