On January 1, 2018 the American Academy of Sleep Medicine increased the Accredited Sleep Technologist Education Program (A-STEP) self-study modules from 23 to 26. Effective June 1, all CPSGT & RPSGT exam candidates using the Eligibility Pathway 1 or 4 (RPSGT) or Pathway 1 or 3 (CPSGT) must complete all 26 modules.