Legal authority (U.S.) Legal authority for control of communicable diseases: federal laws Legal authority (Colorado) 25-1-506: Powers and duties of county and district health departments (Colorado Revised Statutes). 25-1.5-102: Epidemic and communicable diseases—powers and duties of the department (Colorado Revised Statutes). 25-4-1705: Department of Public Health and Environment—powers and duties—rules (Colorado Revised Statutes). Additional Resources Pandemic Influenza: Quarantine, Isolation and Social Distancing