The Water Environment Federation (WEF) is a non-profit dedicated to improving water quality, protecting the environment, and providing educational tools to water advocates and water sector workers. This live webcast introduces the Water Sector Climate Emissions Quantification Guidelines and the WSCER spreadsheet tool developed under Water Research Foundation Project 5188. Through the expertise of four presenters, participants will gain an understanding of boundary definition, source screening, emission factor selection, and much more as these topics relate to the WSCER.