How to become a Certified Occupational Hygienist

Only Full members of the AIOH can apply for certification

All applicants for certification are assessed under a series of stringent criteria, and if accepted, are invited to sit an oral examination.

The path to certification is straightforward. You can proceed at your own pace to gather the necessary documentation and evidence as part of your application.

  • To download the Certification Scheme Policy & Procedures, click here.

Apply for Certification