2024 Exam
The next ROH®, Fast Track and ROHT® written examination will be Saturday March 30, 2024. Application deadline for the next exam is February 1, 2024.
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IOHA 2024 - Dublin
The conference aims to promote occupational hygiene and worker health protection by the minimisation of worker exposure to hazardous agents globally through plenary sessions, keynote lectures, workshops and more.
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Newsletter
Read our latest Newsletter and find out what’s new, read articles from our members, and see a list of upcoming events.
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JOB POSTINGS – WE NOW OFFER 20% OFF THIS SERVICE FOR MEMBERS.
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Occupational Hygiene is the discipline of anticipating, recognizing, evaluating and controlling health hazards in the working environment with the objective of protecting worker health and well-being and safeguarding the community at large.

The CRBOH or Canadian Registration Board of Occupational Hygienists, is a national, not-for-profit organization, which sets standards of professional competence for occupational hygienists and occupational hygiene technologists in Canada and around the world.

Registration with the CRBOH confers the right to use the title Registered Occupational Hygienist (ROH®) or Registered Occupational Hygiene Technologist (ROHT®), and indicates the attainment and maintenance of a high standard of professionalism in the field of occupational hygiene.

ROH®/ROHT® Scope of Practice