US lawIllinoisRegulationsTitle 92 — TRANSPORTATIONCHAPTER I: DEPARTMENT OF TRANSPORTATIONSUBCHAPTER f: HIGHWAYSPart 532 — MAILBOX TURNOUTS532.ILLUSTRATION B92 Ill. Adm. Code 532.ILLUSTRATION BB Suggested Single Box MountingYear: 2026Length: 7 wordsOfficial source Section 532.ILLUSTRATION B Suggested Single Box MountingPrevious92 Ill. Adm. Code 532.ILLUSTRATION A