Barriers exist to healthy eating and physical activity for children in the school environment. Modifiable school environmental factors have led to the development of the Nutrition Friendly Schools and Communities (NFSC) model to prevent the development of overweight in school children and adolescents. The design of the NFSC environmental intervention is to actively engage the school community to prevent overweight in school-aged children. This article presents data measuring the environmental changes achieved by the Los Angeles Unified School District (LAUSD) elementary schools participating in a 3-year participatory research pilot study funded by the Centers for Disease Control and Prevention (CDC). An objective of the pilot study is to determine whether any or all of the 15 steps developed for the NFSC model could be implemented. Further, researchers want to know if any of the study schools could implement the NFSC model as a whole during the allotted time of the pilot study.