US lawIllinoisRegulationsTitle 92 — TRANSPORTATIONCHAPTER I: DEPARTMENT OF TRANSPORTATIONSUBCHAPTER e: TRAFFIC SAFETY (EXCEPT HAZARDOUS MATERIALS)Part 440 — MINIMUM SAFETY STANDARDS FOR CONSTRUCTION OF TYPE I SCHOOL BUSES440.ILLUSTRATION B92 Ill. Adm. Code 440.ILLUSTRATION BB Octagon Shaped Stop Signal Arm PanelLast amended: 1998Year: 2026Length: 9 wordsOfficial source Section 440.ILLUSTRATION B Octagon Shaped Stop Signal Arm PanelPrevious92 Ill. Adm. Code 440.ILLUSTRATION ANext92 Ill. Adm. Code 440.ILLUSTRATION C