18-28-502.7.1 Storage in excess of the maximum allowable quantities.
   Indoor storage areas and storage buildings for hazardous materials in amounts exceeding the maximum allowable quantity per control area shall be provided with mechanical exhaust ventilation or natural ventilation where natural ventilation can be shown to be acceptable for the materials as stored.
   Exception: Storage areas for flammable solids complying with the requirements of the Chicago Fire Prevention Code.
(Amend Coun. J. 9-14-21, p. 35949, Art. V, § 5)