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Standard fireproof vault.

Municipal Code of Chicago § 15-28-430
in effect
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15-28-430 Standard fireproof vault. Corrosive Liquids. Whenever a standard fireproof vault is used for the storage of corrosive liquids, there shall be a sill at every doorway thereto, constructed of noncombustible materials and six inches high above the level of the floor of the vault. All floor drains in a vault used for storing or keeping corrosive liquids shall have no connections with the drainage system of the building, but shall be arranged to drain to a location outside of the building remote from all connections or drains to the sewer system. (Prior code § 92-37)
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2679807Fetched: 10/24/2026

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15-28-430 | Corpus