Few U.S. studies have investigated school drinking water access and policies and practices related to school drinking water. This project will investigate drinking water availability, policies and practices, and barriers to implementing programs and policies to improve drinking water access and intake in California public schools. If pending California state legislation to improve drinking water access in school cafeterias passes, these study results can be used to examine the impact of this legislation in a subsequent study, provide valuable information for schools mandated to implement drinking water programs under law and inform future policy efforts. The specific aims of the study are to: 1) develop a valid tool to assess drinking water availability, water-related policies and practices, and barriers to school water program and policy implementation; 2) collect survey data to describe these factors and how they vary by school characteristics; and 3) disseminate these findings to policy-makers, school administrators and public health officials.