Every building hereafter designed, erected, altered or converted for the purpose of manufacturing or storing for resale any fume or flammable compressed gas in a quantity exceeding 2,500 cubic feet during any 24-hour period shall be freestanding and isolated by a safety clearance of not less than 250 feet. Every building hereafter designed, erected, altered or converted for the purpose of manufacturing, compressing or storing acetylene gas at a pressure of more than 15 pounds per square inch shall be freestanding and isolated by a safety clearance of not less than 250 feet.
Any building or group of buildings used for the purpose of the production, distribution, or storage of any fume or flammable compressed gas shall be exempt from the provisions of the preceding paragraph with respect to any other building or structure within the same group and used for similar purposes. Any public utility engaged in the production, distribution, or storage of illuminating gas shall also be exempt from the provisions of the preceding paragraph, except as prohibited or otherwise regulated in other provisions of this Code. Nothing in this section shall be construed as prohibiting the storage for use on the premises of acetylene gas in cylinders in a quantity of 2,500 cubic feet or less or the generation of any such gas for use on the premises in a quantity of 2,500 cubic feet or less at a pressure of 15 pounds or less per square inch, or the use of any number of cylinders of any such gas which is in actual use or attached ready for use in any industrial process. Any mechanical refrigerating system built in accordance with Title 14M shall be exempt from the provisions of this section.
(Coun. J. 12-9-92, p. 25465; Amend Coun. J. 2-7-96, p. 15616; Amend Coun. J. 10-7-20, p. 21791, Art. VI, § 54)