Ill. Admin. Code tit. 92, § 442.APPENDIX E
Octagon Shaped Stop Signal Arm
Effective Jan 14, 199216 Ill. Reg. 1685AUTHORITY: Implementing Article VIII of Chapter 12 of the Illinois Vehicle Code [625 ILCS 5/Ch. 12, Art. VIII] and Section 14-3(m) of the Criminal Code of 1961 [720 ILCS 5/14-3(m)] and authorized by Section 12-812 of the Illinois Vehicle Code [625 ILCS 5/12-812].DEPARTMENT OF TRANSPORTATION
(Source: Added at 16 Ill. Reg. 1685, effective January 14, 1992)