Become a WSO Member

All membership applications shall be applied directly with WSO Management Center in USA

However, WSO Vietnam can assist you with application process if you wish. You can contact WSO Vietnam for further assistance at

  • To apply for membership with the WSO, you may download the Membership Application or you may complete and submit the online application.
  • Please also provide a signed WSO Code of Ethics and your current résumé/CV, along with supporting documentation (transcripts, certificates, etc.).


Membership application and Annual fees:

For Vietnam,

  • One time membership application fee is $20 and
  • $30 for annual fee 

For other countries*
(*) For your country’s fee rate (outside the U.S.), please contact If you wish to apply for WSO Certification(s), you must be a Affiliate Member.

  • Affiliate Membership* – $90.00 USD (plus $20.00 Application Fee; total $110.00).
  • Associate Membership – $65.00 USD (plus $20.00 Application Fee; total $85.00)
  • Institutional Membership – $195.00 USD (plus $20.00 Application Fee; total $215.00)
  • Corporate Membership – $1,000.00 USD (plus $20.00 Application Fee; total $1020.00)

Note: Please note that ONLY full time practitioners in the safety environment and accident prevention and allied fields are eligible for the WSO Affiliate Membership. Please briefly describe your present employment or enclose your resume for evaluation.