Chartered status is internationally recognised and signifies a high level of professional competence and experience. We are proud to be the only organisation in the world that offers Chartered Membership for Occupational Hygienists.

Directory of Occupational Hygiene Services

Find an Occupational Hygiene Service provider in a specialist discipline or region by searching through our directory.

Directory of OH Services

The Royal Charter

We were awarded a Royal Charter in 2012, recognising our role as the leading UK authority on worker health protection. Thanks to this, professionals who achieve the BOHS Diploma in Occupational Hygiene can gain the coveted status of Chartered Occupational Hygienist.

‘Chartered Occupational Hygienist’ is a coveted and protected title, which is recognised as a mark of excellence across the world. Those who have achieved this position are entitled to use post-nominal letters to show their prestigious status in the profession.  

Find out more about The Royal Charter