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PC 409 — Dishwashing Machines

New York City Administrative Code (current through L.L. 2026/147, enacted September 12, 2026, and amendments effective through October 10, 2026) · NYC Plumbing Code § PC 409

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Section PC 409: Dishwashing Machines

409.1 Approval. Commercial dishwashing machines shall conform to ASSE 1004 and NSF 3. Commercial dishwashing machines with integral gas-fired heating must be tested and evaluated in accordance with UL 921. 409.2 Water connection. The water supply to a dishwashing machine shall be protected against backflow by an air gap that is integral with the machine or a backflow preventer shall be installed in accordance with Section 608. Air gaps shall comply with ASME A112.1.2 or A112.1.3. 409.3 Waste connection. The waste connection of a dishwashing machine shall comply with Section 802.