Tate Walker, AIA, LEED Fellow, WELL AP is the Director of Sustainability at OPN Architects and leads projects and initiatives across the firm. His experience is rooted in the architectural design process, but includes program and project management, and the development of technical guidelines for high performing buildings. He has served many organizations, including cities and universities, AIA’s Committee on the Environment, AIA’s 2030 Commitment, and the USGBC’s Energy & Atmosphere Technical Advisory Group. In 2018, Tate was a lead author of the COTE Toolkit, which assembles best practices, exemplary projects, metrics, and research to support the design of beautiful, high performing buildings. In 2019, AIA adopted the toolkit as the Framework for Design Excellence for the entire membership, to support a healthy, zero carbon, equitable, resilient future for all.