What NFPA 96 requires, in plain terms
Reference, not marketing.
NFPA 96 is the National Fire Protection Association standard for ventilation control and fire protection of commercial cooking operations. It is what your fire inspector references, what your insurance carrier expects you to meet, and what any claim about compliant cleaning is measured against. This page sets out what it actually says.
Two standards, two roles
Reference editions used throughout this page: NFPA 96 2024, IKECA C10 2021, I10 2020, and M10 2023.
NFPA 96
The National Fire Protection Association standard for ventilation control and fire protection of commercial cooking operations. It is not itself law. It becomes enforceable where a jurisdiction adopts it, which Colorado authorities do through the fire code, and it is what your inspector and your insurance carrier reference.
IKECA C10, I10, and M10
The International Kitchen Exhaust Cleaning Association publishes the industry standards for cleaning (C10), inspection (I10), and maintenance (M10). Inspectors and insurers reference the IKECA cleaning standard alongside NFPA 96, which is why IKECA membership is worth checking when you evaluate a contractor.
Inspection frequency is set by what and how much you cook
Find your operation in the table and you have the interval the standard expects you to hold.
NFPA 96 Table 12.4
One thing worth knowing: these are inspection intervals. If an inspection finds measurable accumulation, the system is cleaned regardless of when it was last serviced, and the interval should shorten. A kitchen on an annual schedule that keeps turning up dirty is a kitchen on the wrong schedule.
Clean is a measurement, not an opinion
The standard puts numbers on it, which gives you something concrete to hold any contractor to, including us.
About 0.078 of an inch of accumulation, measured rather than judged by eye.
About 0.002 of an inch.
This is the crew's actual standard. A photograph of a measured surface is evidence; "looks clean" is not.
- Horizontal ducts require access openings at intervals that allow the full system to be inspected and cleaned.
- Panels are made of matching material with rated gaskets, and are labeled ACCESS PANEL, DO NOT OBSTRUCT.
- A duct run with no openings cannot be verified by anyone, which is why missing access is one of the most common deficiencies found and quoted.
The reporting requirements, cited
These four references cover what the standard says about documentation and frequency. Our reporting practice is built around them rather than merely satisfying them.
Post-service label
After service, a label is affixed to the hood showing the date of service, the technician's name, and the company's name, address, and phone number. It is what an inspector looks for first.
Written report after inspection
A written report is furnished to the owner or agent within two weeks of an inspection.
Written report after cleaning
A written report is furnished to the owner or agent within two weeks of a cleaning. Our reporting practice is built around this requirement rather than merely satisfying it.
Inspection frequency
Frequency is set by cooking volume and fuel type, not by preference or budget. The table above lets you identify where your own operation sits.
A note on terms: the standard calls the item affixed under 12.6.13 a post-service label. Everywhere else on this site, and on most inspection reports you will read, it is called the NFPA 96 compliance sticker. They are the same thing, and the written report required under 12.6.14 and 12.6.15 is what we call a service report.
What the standard asks of you, between our visits
IKECA M10 sets out owner-side maintenance obligations. None of it is difficult, and doing it well genuinely slows accumulation upstream in the parts of the system nobody can see.
- Daily checks of the hood and exhaust fan
- Filter cleaning after each shift
- Monthly visual inspection of the fire suppression system tag
What in-house maintenance cannot produce is the documentation. The written reports under 12.6.14 and 12.6.15 and the dated label under 12.6.13 identify who performed the service, and those are the artifacts an inspector or a carrier asks to see. Your daily maintenance complements scheduled service. It does not replace the record that service generates.
Want your system checked against the standard?
We will walk the system, photograph the duct run, and tell you where it stands. Estimates are free, anywhere in our service area.