What is the Spectrum of Public Participation?

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IAP2's Spectrum of Public Participation was designed to assist with the selection of the level of participation that defines the public's role in any public participation process. The Spectrum is used internationally, and it is found in many public participation plans. 

 

The Spectrum of Public Participation was developed by the International Association of Public Participation (IAP2) to help clarify the role of the public (or community) in planning and decision-making, and how much influence the community has over planning or decision-making processes. It identifies five levels of public participation (or community engagement).


The further to the right on the Spectrum, the more influence the community has over decisions, and each level can be appropriate depending on the context. It is important to recognize they are levels; not steps.


For each level it articulates the public participation goal and the promise to the public.

Want to use the spectrum in your work? Contact us to find out how we can help.