US lawIllinoisRegulationsTitle 14 — COMMERCECHAPTER I: SECRETARY OF STATEPart 166 — UNIFORM PARTNERSHIP ACT (1997)166.3514 Ill. Adm. Code 166.35Business HoursYear: 2026Length: 24 wordsOfficial source Section 166.35 Business Hours The Department of Business Services business hours are 8:00 a.m. to 4:30 p.m. in Springfield, Monday through Friday, except holidays.Previous14 Ill. Adm. Code 166.30Next14 Ill. Adm. Code 166.40