Boiler permit / DEP registration: New York City restaurant guide

NYC DOB / DEP

What it is

A DOB work permit for boiler installation, plus DEP air registration for boilers of 350,000 BTU/hr and up (a full DEP work permit at 4.2 million BTU/hr and up).

When a restaurant needs it

Installing, replacing or removing a boiler.

How to apply

DOB boiler work through DOB NOW by a Licensed Master Plumber or Oil Burner Installer; DEP registration filed in CATS.

Documents you’ll need

Boiler specs (BTU input)
Plumbing / mechanical plans
PE certification for 2.8M+ BTU/hr units

Fee

Varies — see DOB and DEP fee schedules

Processing time

Varies

Renewal

Annual boiler inspection; DEP registration renewal

Who files

DOB work by a Licensed Master Plumber / Oil Burner Installer; DEP filing by a PE, RA or the owner.

Good to know

DEP thresholds confirmed in CATS: 350,000 to under 2.8M BTU/hr = Registration I; 2.8M to under 4.2M = Registration II; 4.2M+ = work permit.

Official source

DOB — boilers · DEP — CATS air registrations

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