The Occupational Hygiene Training Association (OHTA) is a not-for-profit organization of volunteers.  They aim to reduce the global burden of ill health from the work environment by promoting better standards of occupational hygiene practice around the world.

OHTA develops training materials and makes them freely available for use by students and training providers.  They also promote an international qualifications framework so that all hygienists are trained to a consistent, high standard, recognized in all participating countries.

OHTA principles
OHTA is supported by many national occupational hygiene organizations and the International Occupational Hygiene Association.
They operate with a few basic ground rules: They try to be

  • Inclusive
  • Straightforward
  • Transparent
  • Accessible
  • Engaging

OHTA believes that adhering to these operating principles will help to grow the global occupational hygiene community and encourage consensus standards.

Support and sponsorship
OHTA has no paid staff.  All time and effort is provided by volunteers and supporters. Operating costs are minimal but essential services are funded through sponsors who share the aims of OHTA.

OHTA partners with many other organizations to enable delivery of the international training and qualifications system.  OHTA is pleased to collaborate with Workplace Health Without Borders to help bring occupational hygiene training to developing countries.

Further information
More information about OHTA can be found on their website,, where you can also view and download their training materials free-of-charge.