EPNET has five types of membership: Full member, Associate member, Individual member, Honorary member and Corporate member.
The application form to become a member of EPNET is available here.

Full member (200 Euro):
A full member can only be a Centre for Porphyria Expertise established in Europe (as defined by the WHO) that renders clinical and laboratory services to porphyria patients, that is free of political or other influences and that meets certain requirements (see statutes)

Associate member (100 Euro):     
- Impartial non-European Centres of Porphyria Expertise which provide clinical and laboratory service to porphyria patients
- European Centres of Porphyrias that do not yet fulfill the criteria for being an EPNET Centre of Expertise
- European porphyria patient organizations

Individual member (20 Euro):
- Health care professionals and scientists with an interest in porphyria

Honorary member:
Individuals nominated by EPNET Executive Board (EB) in recognition of their contribution to the field of porphyrias

Corporate member (10 000 Euro):
Commercial companies with an interest in the field of porphyria