RESNA certifications are time-limited and are on a two-year renewal cycle. Renewal requires commitment to continuous professional development by accumulating specified continuing education and/or academic credits during each certification period, and relevant work experience. If you have multiple RESNA certifications (i.e. ATP, SMS, RET), your term dates are linked and can be renewed at the same time without additional work experience or education requirement per certification, as long as at least half of the trainings are relevant to all certifications.