{"id":"DUT-IL-009","kind":"duty","level":"state","jurisdiction":"Illinois","state":"IL","metro":"","industry":"","agency":"","eco":"","issuer":"Illinois General Assembly (Counties Code)","authority":"Counties Code, 55 ILCS 5, Division 5-25 (County Health Departments)","instrument":"55 ILCS 5/5-25013 (powers and duties of county boards of health)","title":"Power and duty of every county board of health to investigate contagious disease and adopt measures to arrest its progress","dateIssued":"2026-09-28","effective":"standing","end":"standing","startDate":"2026-09-28","endDate":"","quarters":["2020Q2","2020Q3","2020Q4","2021Q1","2021Q2","2021Q3"],"types":["DUTY","QUAR","CLOSE"],"addressees":["county health departments (authority); persons and businesses within each county (subject to local measures and inspections)"],"clause":"Within its jurisdiction, and professional and technical competence, investigate the existence of any contagious or infectious disease and adopt measures, not inconsistent with the regulations of the State Department of Public Health, to arrest the progress of the same.","enforcement":"Enforcement through local ordinances and 20 ILCS 2305/8.1 for Department rules; closure and dispersal orders under 690.50(d)","functions":[],"notes":"Every county or multiple-county board of health shall investigate contagious disease within its jurisdiction, adopt measures to arrest its progress, and \u0027make all necessary sanitary and health investigations and inspections\u0027; the certified local health departments enforced the executive orders and IDPH\u0027s section 690.50 as \u0027enforcing entities\u0027 under 690.50(d). Character as recorded: statutory_authority (enabling power; binds through the orders issued under it).","sourceUrl":"https://ilga.gov/Documents/legislation/ilcs/documents/005500050K5-25013.htm","snapshot":"","fileExists":true,"fileBytes":111327,"grade":"primary","character":"statutory_authority","description":"","collection":"DUT-IL","url":"/library/DUT-IL-009","exhibitUrl":"/exhibit/DUT-IL-009","citation":"Illinois General Assembly (Counties Code), 55 ILCS 5/5-25013 (powers and duties of county boards of health) (standing) (Ex. DUT-IL-009)","stateName":"Illinois","related":["IL-005"]}