A number of other countries and regions of the world have certification systems for professional ergonomists that are also endorsed by the International Ergonomics Association (IEA). The certification of these organisations is based on minimum standards of competency defined by the IEA. Ergonomists certified at the highest (or professional) level by these organisations may be considered equivalent to the CREE registered European Ergonomists in terms of their professional competence. They have also signed Codes of Conduct which are similar to that of CREE. In addition to CREE, the IEA has endorsed the following certification systems:
- Board of Certification of Professional Ergonomists BCPE, USA
- Ergonomics Society of Brazil Certification Body
- Japan Ergonomics Association Certification Board
- New Zealand Ergonomics Society Certification Board
Member Societies of CREE
The "Association pour la Reconnaissance du Titre d’Ergonome Européen en Exercice" is the Certification board of the French Language Ergonomics Society (SELF) and represents France and Luxembourg.
The Association of Work Sciences (Gesellschaft für Arbeitswissenschaften, GfA) represents Germany and Austria.
Hungarian Ergonomics Society
The representative of the Nordic Ergonomics and Human Factors Society represents the ergonomics societies of Sweden, Denmark, Norway and Iceland.
Although the Ergonomics Society of Finland is a member of NES, the Society has a separate representative on CREE
The Society for Registration of Ergonomists (SrE) processes applications from The Netherlands.
APERGO is the association that handles all applications for the Portuguese Ergonomics Association
The Italian Ergonomics Association (SIE)
Belgium is represented by the Belgium Ergonomics Society.
The Latvian Ergonomics Society accepts applications from Estonia, Latvia and Lithuania.
Polish Ergonomics Society
Hellenic Ergonomics Society
The Chartered Institute of Ergonomics and Human Factors (CIEHF) represents the United Kingdom and Ireland.