Chronic absence, defined most commonly as missing 10 percent or more of school for any reason (including excused and unexcused absences and suspensions), is a cross-cutting metric that is both a warning sign and predictor of education and health outcomes. California has recognized the power of chronic absence as a tool for better understanding poor academic performance by integrating it into the state's Local Control Funding Formula (LCFF) and including it as a school quality measure in the state plan for the nation's new education law, the Every Student Succeeds Act (ESSA). While the root causes of chronic absence are multifold, student health issues, including physical and mental health issues, are a major factor. This document will help school districts: (1) determine the health-related root causes of chronic absence in a school or district; (2) identify what interventions are already underway or should be implemented; (3) consider what funding sources are available to support those interventions; and (4) link efforts to address health-related causes of chronic absence with the policy priorities of a state education agency (SEA) or local education agency (LEA). [This report was prepared with the California Local School Wellness Policy Collaborative.]