The NFPA 96 Certificate: What It Is and What It Proves

There is no single “NFPA 96 certificate.” The standard requires several records — a certificate of inspection, a written report, and a service label — each serving a different audience. Here is what the standard actually requires, what each record must contain, and why they matter.

Cited to the standardEvery threshold definedBuilt by an IKECA-certified operator

The service certificate

After every cleaning and inspection, NFPA 96 requires a certificate documenting the work. The certificate must state the date of inspection, the areas inspected, and the name of the servicing company or individual. It must be kept on the premises — available for immediate review by the Authority Having Jurisdiction.

This is the document inspectors and insurers reach for first. If it doesn’t exist, the cleaning may as well not have happened.

The written report to the owner

Separate from the certificate kept on-site, NFPA 96 requires a written report delivered to the building owner or operator. This report must document any areas that could not be accessed for inspection or cleaning — and any areas where the cleaning was incomplete.

This is the record that protects both parties. The contractor documents what they could and couldn’t reach. The owner is put on notice about access issues that need to be resolved before the next service.

The areas-not-cleaned list is the part cut-corner operators omit — and the part that matters most when a claim arises. A missing report leaves the contractor exposed and the owner uninformed.

The access-panel service label

After service, a label must be affixed to the system access panel. The label identifies the servicing company, the date of service, and indicates that the system was inspected and cleaned.

This is the physical proof that remains on the equipment between service intervals — the first thing a fire marshal sees when they open the panel. It ties the on-site certificate back to the contractor who did the work.

What the standard requires you to inspect and clean

NFPA 96 defines specific components, measurable thresholds, and documentation requirements for every part of the exhaust system.

Grease levels

Grease accumulation is measured with a depth comb. NFPA 96 defines named thresholds — each tied to a specific section of the standard and a required action.

Acceptable
50 μm§12.6.1.1.1

Grease accumulation within the acceptable range. No cleaning action required at this reading.

Cleaning Required
2,000 μm§12.6.1.1.3

Grease accumulation has reached the threshold. The system must be cleaned.

Critical Depth
3,175 μm§12.6.1.1.4

Fan-housing accumulation at critical level. Immediate cleaning required.

Containers
At least weekly§12.6.16

Grease containers must be inspected or emptied at least weekly.

Exhaust fans

  • Upblast fans must be hinged and supplied with a service hold-open retainer so the fan can be lifted for inspection and cleaning, with a grease drain to a receptacle not exceeding 1 gallon.(§8.1.2.1, §8.1.2.3)
  • In-line and utility-set fans carry the same 1-gallon grease-receptacle requirement and must have cleaning and inspection access within 3 ft.(§8.1.3.4, §7.3.8)
  • Upblast fans need a cleaning access opening — a minimum 3 in. × 5 in. opening (or 4 in. diameter) on the housing to reach the fan blades; older fans without adequate access must be fitted with a hinge mechanism or access panel.(§8.1.6.3.1, §8.1.6.3.2)

Ducts

  • Ducts must have cleaning and personnel-entry access — at least one 20 in. × 20 in. opening for entry, or, where that’s not possible, openings large enough for thorough cleaning at 12 ft intervals.(§7.4.1.1, §7.4.1.2)
  • Every access panel carries the sign “ACCESS PANEL — DO NOT OBSTRUCT.”(§7.1.7)
  • Cleaning removes combustible contaminants to the 50 μm minimum; anything that can’t be reached is documented in the owner’s written report.(§12.6.1.1.1, §12.6.14)

Who is allowed to do the work

NFPA 96 requires that inspection and cleaning be performed by a properly trained, qualified, and certified person acceptable to the Authority Having Jurisdiction (AHJ). This is not a task for kitchen staff, maintenance workers, or untrained labor.

In practice, most AHJs recognize IKECA certification as the standard credential. Some jurisdictions maintain their own licensing requirements. The certificate the contractor issues is only as credible as the credentials behind it.

A clean-looking hood is not the same as a compliant exhaust system. The standard requires documented proof that the work was done by the right person, at the right interval, with the results recorded.

Frequently Asked Questions

No. NFPA 96 does not define a single document called "the NFPA 96 certificate." The standard requires several records — a certificate of inspection kept at the premises, a written report delivered to the building owner, and a service label affixed to the access panel. Together, these records document that the system was inspected and cleaned to the standard.
NFPA 96 defines named depth thresholds measured with a grease-depth comb. Acceptable is up to 50 μm (§12.6.1.1.1). Cleaning Required is 2,000 μm (§12.6.1.1.3). Critical Depth is 3,175 μm in the fan housing (§12.6.1.1.4). Grease containers must be inspected or emptied at least weekly (§12.6.16).
After cleaning, the accessible surfaces of the hood, ductwork, fan, and associated components must be cleaned to bare metal where accessible. Any areas that could not be accessed or fully cleaned must be documented in the written report to the building owner.
The work — and the resulting certificate — must come from a properly trained, qualified, and certified person acceptable to the Authority Having Jurisdiction (AHJ). In practice, most AHJs recognize IKECA certification as the standard credential. Some jurisdictions maintain their own licensing requirements. Kitchen staff cannot self-certify their own exhaust system.
Yes. NFPA 96 requires that a certificate of inspection be kept on the premises and available for review by the Authority Having Jurisdiction on demand. A separate written report goes to the building owner. Both records must be retained.

The records exist, or they don’t. There is no middle ground.

When a fire marshal pulls the access panel, when an insurer opens the claim file, when a plaintiff’s attorney subpoenas documentation — the question is never whether the hood was cleaned. The question is whether you can prove it. That proof is either sealed in a record, or it doesn’t exist.

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