A Guide for Reporting the Four Core Measures Required of Drug Free Communities (DFC) Support Program Grantees was developed to help DFC grantees most accurately collect data on the four core measures. DFC grantees are expected to report this information a minimum of every two years. This guide provides an overview of the questions that will meet the core data measures that are most commonly used by DFC grantees, questionnaire-specific examples of questions and how to report the data generated by them, and additional resources (e.g., Web sites, frequently asked questions) that may be of interest to DFC grantees.