The White House Office of Domestic Climate Policy (Climate Policy Office), through the U.S. Department of Energy, seeks to create a standardized, verifiable basis for defining a zero emissions building. A broadly accepted common minimum definition for a zero emissions building, as well as a pathway for verification, is foundational to efforts by public and private entities to transition the building sector to zero emissions. The definition may serve as a framework that users can achieve through multiple pathways to influence the design and operation of buildings to substantially reduce building sector emissions.