The purpose of this Public Participation Plan is twofold: (1) to establish ways for sharing knowledge about the chemical weapons disposal mission at Pueblo Chemical Depot; and (2) to allow members of the community surrounding the U.S. Army Pueblo Chemical Depot to communicate openly with the Department of Defense, Program Manager Assembled Chemical Weapons Alternatives the Army, Colorado Department of Public Health and Environment and the systems contractor, Bechtel National, Inc. about chemical weapons stockpile disposal. This document outlines specific public participation strategies for addressing these goals and for maintaining the Public Participation Plan as a flexible, "living" document that can adapt to evolving community needs and concerns.