NITROCELLULOSE (15-28-940 et seq.)

Municipal Code of Chicago tit. 15, ch. 15-28, art. XVIII

in effect

Municipal Code of Chicago § 15-28-940 Safety clearances.

15-28-940 Safety clearances. Every nitrocellulose building shall be freestanding and isolated by a safety clearance computed at the rate of five feet per 1,000 pounds or fraction thereof of nitrocellulose manufactured or reclaimed; provided, however, that such safety clearance shall in no case be less than 50 feet; and provided further, that the requirements of this paragraph shall not apply to any buildings in which 25 pounds or less of nitrocellulose are manufactured or reclaimed during any 24-hour period. (Prior code § 92-83)

Municipal Code of Chicago § 15-28-950 Construction requirements.

15-28-950 Construction requirements. Every nitrocellulose building shall be of Type IA, IB, or II construction. (Prior code § 92-84; Amend Coun. J. 10-7-20, p. 21791, Art. VI, § 94)

Municipal Code of Chicago § 15-28-960 Fire-resistive separation.

15-28-960 Fire-resistive separation. Every nitrocellulose room shall have a separation between it and any other room permitted in the same building of not less than two-hour fire-resistive construction. (Prior code § 92-85)

Municipal Code of Chicago § 15-28-970 Standard fireproof cabinets.

15-28-970 Standard fireproof cabinets. The maximum capacity of a standard fireproof cabinet shall be 200 pounds of nitrocellulose material or nitrocellulose product, or other high hazard material for which such vault is intended. All standard fireproof cabinets shall be constructed of metal. The bottom, top and sides shall be made of sheet metal not less than No. 18 U.S. standard gauge in thickness, and such cabinet shall be double-walled with not less than one and one- half inches air space between the double walls. All joints in the sheet metal shall be riveted or welded. All doors shall be of construction equal to the cabinet, and shall have a three point lock and self-closing device. Any standard fireproof cabinet having more than one compartment shall have a separate partition constructed of not less than No. 18 U.S. standard gauge sheet metal, double-walled, with an air space not less than one and one-half inches between the surface thereof. (Prior code § 92-86)

Municipal Code of Chicago § 15-28-980 Capacity regulations.

15-28-980 Capacity regulations. Not more than 25 pounds of nitrocellulose shall be manufactured or reclaimed in other than a nitrocellulose building or a nitrocellulose room constructed as required; provided, however, that completely manufactured nitrocellulose enclosed within sealed shipping containers, meeting the regulations of the United States Department of Transportation for containers for nitrocellulose may be stored in one or more standard fireproof vaults located in any building, except as prohibited under this Code. (Prior code § 92-87; Amend Coun. J. 6-14-95, p. 2841; Amend Coun. J. 6-6-12, p. 28356, § 45; Amend Coun. J. 11-7-22, p. 54984, § 14)

Municipal Code of Chicago § 15-28-990 Restrictions.

15-28-990 Restrictions. The business or process for recovery of nitrocellulose base shall not be permitted within the city. (Prior code § 92-88)

Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2680036Fetched: 10/24/2026