Guideline to ensure that COHs continue to develop and increase their professional level occupational hygiene knowledge and skills during the time period that they are certified by the AIOH.
COH Certification Maintenance Points Excel Spreadsheet.
Certified Occupational Hygienists approved Activities, courses and CM points register. Download as an Excel Sheet (csv).
COH Certification Scheme Policy and Procedures.
As a Retired COH member you may continue to practice in occupational hygiene as an active Member. If you wish to become a Retired Member, please complete the Retired Member Form.
Application form to request a current membership grade be amended to indicate Retired status.
Proforma template for professional reference to support membership application to the AIOH.
The details of requirements for all AIOH membership categories (approved: October 2020, review: October 2025).
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