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DEP sewer / water connection permits: New York City restaurant guide

NYC DEP

What it is

Required for any new connection to a city sewer, or when an alteration increases sanitary or stormwater flow; DEP no longer accepts paper or email submissions.

When a restaurant needs it

New water / sewer connection, or increased flow.

How to apply

A NY-licensed PE or RA files a Site Connection Proposal (sewer certification) electronically in DEP's PARIS system; after certification, a Licensed Master Plumber applies for the DEP connection permit.

Documents you’ll need

Fee
Varies — see DEP fee schedule
Processing time
Varies
Renewal
Certification valid 2 years
Who files
Filed by a PE/RA and Licensed Master Plumber.

Good to know

Applicability depends on the existing connections and added fixtures — confirm with DEP and your Licensed Master Plumber for the specific site.

Official source

DEP — sewer certification FAQ

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Last reviewed 2026-10-06. Guidance only, not legal advice.