Exhaust / hood cleaning compliance: New York City restaurant guide

FDNY

What it is

Commercial kitchen exhaust systems must be inspected and cleaned at least once every three months by a W-64/P-64 certificate holder employed by an FDNY-approved servicing company.

When a restaurant needs it

Any commercial hood / exhaust system.

How to apply

Contract an FDNY-approved commercial cooking exhaust servicing company and keep the cleaning records/tags on site.

Documents you’ll need

Cleaning certificates / logs

Fee

No government fee — contractor cost

Processing time

Recurring

Renewal

At least every 3 months

Who files

Performed by W-64/P-64 certified technicians of an FDNY-approved company.

Good to know

Confirmed on FDNY's page: at least once every three months. Missing cleaning records are an easy violation at the annual inspection.

Official source

FDNY — Certificates of Fitness · FDNY — W-64 exhaust cleaning

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