Audiologists diagnose, evaluate and treat individuals with peripheral and central hearing loss, tinnitus and balance problems. Speech-language pathologists diagnose, assess and treat human communication disorders including speech, fluency, language, voice and swallowing disorders. Audiologists and speech-language pathologists who are supervisors are included in this unit group.

• Audiologists require a master's degree in audiology.
  
• Speech-language pathologists require a master's degree in speech-language pathology.
  
• Registration with a regulatory body is required for audiologists and speech-language pathologists in Newfoundland and Labrador, New Brunswick, Quebec, Ontario, Manitoba, Saskatchewan, Alberta and British Columbia.
  
• Membership in the national association, Canadian Association of Speech-Language Pathologists and Audiologists, is usually required.
  
• In some jurisdictions, audiologists may be required to obtain a separate licence to dispense hearing aids.