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What skills are tested in the Needed Scuba Assistance (NSA) evaluation?

The Needed Scuba Assistance (NSA) evaluation highlights whether the diver requires assistance to perform the following key scuba skills or may need the following adaptive equipment:
  • controlled ascents and descents
  • equalization of ears and mask
  • out-of-air emergency alternatives, such as share air and buddy breathe
  • use of a full-face mask or other special equipment required for underwater breathing
These skills are particularly important to perform correctly in order to dive safely. 

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.