Licensure/Certification/Registration: Registration as a Polysomnographic Technologist (RPSGT) by the Board of Registered Polysomnographic Technologists (BRPT), Registered Respiratory Therapist-Sleep Disorder Specialist (RRT-SDS) with the National Board of Respiratory Care (NBRC), or Registered Sleep Technologist (RST) with the American Board of Sleep Medicine (ABSM). MATHEMATICAL SKILLS - Intermediate Skills: Ability to add, subtract, multiply, and divide in all units of measure, using whole numbers, common fractions, and decimals and to calculate figures and amounts such as discounts, interest, commissions, proportions, percentages, area, circumference, and volume.