All food shall be from sources approved by health authorities and safe for human consumption. Shellfish shall be obtained from an approved source and kept in their original package until sold. Molluscan shell stock shall be obtained in containers bearing legible source identification tags or labels.

The floors shall be constructed per code, be smooth and easily cleaned, and be kept clean and in good repair.

The walls and ceilings shall be in good repair and easily cleaned. Use dustless cleaning methods.

The flow of air discharged from kitchen fans shall always be through a duct to a point above the roofline. All plumbing fixtures, such as toilets, sinks, washbasins, etc., must be adequately trapped, vented, and re-vented and properly connected to the sewer in accordance with the plumbing chapter of the Municipal Code of Chicago and the Rules and Regulations of the Board of Health.