Short Description The Health services Assessment Tool for Schools, or “HATS” for short, is designed to help school districts and states assess the quality and comprehensiveness of school health services, the level of infrastructure to support those services and the strength and implementation of school health services policies and protocols. The tool sets a "gold standard" benchmark for comprehensive school health services that districts and states can strive to achieve. It is intended as a self-assessment tool, not a way to evaluate school districts and/or states.