Water Research Foundation funded two Tailored Collaboration projects in 2007 to investigate GHG emissions and drinking water utilities. “Greenhouse Gas Emission Inventory Guidance, Specialty Protocol Development, and Management Strategies for Water Utilities” (project #4156), co-funded by the California Urban Water Agencies, will present a protocol and develop a guidance document for water utilities that will provide a common framework or platform for water utilities to inventory and report their GHG emissions. The study will assist users in understanding issues and terminologies and present a step-by-step approach to perform a water utility-specific GHG emissions inventory. “Evaluating Effects of Climate Change on Water Quality Planning Criteria and Design Standards” (project #4154) is co-funded by Contra Costa Water District, Seattle Public Utilities Commission, Los Angeles Department of Water and Power, and San Diego County Water Authority. This project will evaluate water utility planning criteria and design standards for their effectiveness in helping utilities adapt to future climate conditions. It will evaluate the need to develop new planning criteria and design standards related to GHG emissions.