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International Association for Public Participation (IAP2)

Welcome to IAP2! IAP2 is made up of a diverse and growing group of people who design, implement, use, and participate in public participation processes. Anyone who works with the public to develop policy, make decisions, or implement programs will benefit from IAP2 membership.

Please email questions related to Member Services to

All other inquiries, please email

Mailing Address:

IAP2 Federation Headquarters
PO Box 270723
Louisville, CO 80027 USA

IAP2 has 501(3)(c) charity status in USA and is able to receive donations from within the USA.

International Association of Public Participation
PO Box 270723, Louisville, CO 80027 USA