The peephole must be located so as to enable a person in such housing unit to view from the inside of the entrance door any person immediately outside the entrance door.
430 ILCS 160/1
The owner of every multiple dwelling on which construction is commenced after the effective date of this Act shall provide and maintain peepholes in the entrance door of each housing unit within such multiple dwelling
Known as the Peephole Installation Act
The act spans §§ 430-160-0-01 to 430-160-3 (4 sections).
Laws 1967, p. 1803.
Official source: Illinois General Assembly. Reproduced from public-domain Illinois statutes; confirm against the official source for the current text. Not legal advice.