NAR Exam Application Fee

  • 11 Aug 2020
  • (EDT)
  • 31 Dec 2023
  • (EST)


  • Applicants who currently hold a certification (e.g. CIH) endorsed by the National Accreditation Recognition Committee of the International Occupational Hygiene Association (IOHA) are exempt from the Registered Occupational Hygienist (ROH) written examination component and are eligible to challenge the ROH oral examination directly.


Business Address/ Adresse administrative:

P.O. Box 26125 Maryland Postal Outlet, Winnipeg, MB R3G 3R3

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