The Board shall make certifications for promotion on the basis of job performance measurement, seniority, education, and written and/or oral examination. Examinations for promotion will be given every 24 months for the ranks of Sergeant, Master Sergeant, Lieutenant and Captain with notification of time and location to be provided in the promotional announcement.

(Source: Amended at 46 Ill. Reg. 3589, effective February 17, 2022)