All doors used in guiding and directing the ventilating currents shall be hung and adjusted so as to close automatically.
225 ILCS 705/31.11
All doors used in guiding and directing the ventilating currents shall be hung and adjusted so as to close automatically
Laws 1953, p. 701.
Official source: Illinois General Assembly. Reproduced from public-domain Illinois statutes; confirm against the official source for the current text. Not legal advice.