How AMWG and TWG Evolved and How They Function

The Adaptive Management Work Group (AMWG) is a Federal Advisory Committee mandated in the 1995 Environmental Impact Statement on Glen Canyon Dam Operations. The aim of such committees is to give private citizens a voice in federal policymaking, and in most cases meetings and records are accessible to the public. Federal Advisory Committees solicit the advice of experts on specific issues or complex problems, then make recommendations for statutory, regulatory, or management actions.

AMWG makes formal recommendations to the Department of the Interior on alterations to dam operations and on monitoring of any changes that are implemented. It also coordinates, reviews and forwards budget and program operations information. AMWG directs recommendations and reports to the Secretary of the Interior through the Secretary’s designee, who serves as AMWG chair. Members also formulate research objectives and have a role in GCDAMP budget and work planning. In AMWG’s early years, members voted on recommendations and other items, and the majority ruled. The group now prioritizes stakeholder collaboration and consensus in decision-making. AMWG meets twice a year, typically alternating between Flagstaff and Phoenix.

The Technical Work Group (TWG) is a subcommittee of AMWG. It advises stakeholders on the technical and scientific aspects of issues that come before AMWG, and serves as an intermediary between AMWG and the Grand Canyon Monitoring and Research Center (GCMRC). TWG has the same representative makeup as AMWG, except that instead of a single National Park Service representative, it has two–representing Grand Canyon National Park and Glen Canyon Recreational Area–and includes a representative from the U.S. Geological Survey.