NFPA 17A, the Standard for Wet Chemical Extinguishing Systems, requires kitchen hood fire suppression systems to be inspected and serviced at six-month intervals, and Florida adopts that requirement directly through the Florida Fire Prevention Code. A passing inspection results in a tag placed on the system showing the date of service, and that tag is one of the first things a local fire marshal or health inspector checks during a routine visit to any commercial kitchen.
The six-month clock does not reset just because a restaurant recently opened, changed ownership, or had a system installed a few months ago as part of a build-out. It runs on a fixed calendar interval from the last passing inspection date, which means a restaurant that lets its inspection lapse even by a few weeks is technically out of compliance for that entire gap, not just from the day someone happens to notice the expired tag hanging above the cook line.
It is worth noting that this interval is a statewide minimum, not a ceiling. Nothing prevents a restaurant from scheduling inspections more frequently if its own risk profile, insurance requirements, or operational history calls for it, and in practice many higher-volume kititchens find that tighter internal scheduling catches small issues before they become inspection failures.
A qualified technician checks the full suppression system during a semiannual visit, not just the cylinder and the tag. That includes the condition and placement of nozzles above each piece of protected cooking equipment, the fusible links that trigger automatic activation, the mechanical and electrical interlocks tied to gas and power shutoff, the manual pull station, and the wet chemical agent tank itself. The hood, ductwork, and filters are inspected for grease buildup that could affect suppression coverage, even though grease cleaning itself is typically a separate service performed by a different contractor on its own schedule.
The technician also confirms that the system’s current configuration actually matches what is installed underneath the hood. This step gets overlooked more often than it should. A kitchen that has swapped equipment, added a piece of machinery, or shifted a fryer a few feet to one side since the last visit needs that change reconciled against the suppression design, not just a mechanical check of the existing hardware.
A deficiency found during inspection, whether a clogged nozzle, a corroded fusible link, or a fuel interlock that does not trip correctly, has to be corrected before the system can be tagged as passing. Some technicians can complete minor repairs on the spot, such as replacing a fusible link or clearing a blocked nozzle. Others require a follow-up visit, particularly for parts that need to be ordered or for larger deficiencies like a full nozzle relocation. Either way, the restaurant is not considered compliant until the deficiency is corrected and documented, and the inspection tag is not issued until that correction is confirmed.
Most single-hood kitchens can expect a semiannual inspection to take somewhere between thirty minutes and an hour, with larger multi-hood operations taking longer depending on the number of nozzles and appliances covered. The visit is generally scheduled to avoid peak service hours, since the technician needs reasonable access to the cook line while the inspection is underway.
An expired kitchen hood suppression tag is one of the most common reasons a restaurant fails a health department or fire marshal inspection outright, sometimes resulting in an immediate order to stop cooking with the hood’s protected equipment until the system passes. Beyond the compliance risk, an uninspected system is one whose actual condition is unknown, which matters a great deal if it is ever called on to respond to a real fire. A system that looks fine sitting above the cook line can still have a corroded fusible link or a partially blocked nozzle that only a hands-on inspection would catch.
There is also a financial dimension worth understanding. Many commercial property and liability insurance policies for restaurants include language tying coverage, or at least a smooth claims process, to documented fire protection compliance. An expired suppression tag discovered after a fire loss can complicate a claim at exactly the moment a restaurant owner can least afford that complication.
The most reliable approach is to work with a fire protection contractor who tracks your due date proactively and reaches out ahead of the deadline, rather than relying solely on your own internal calendar. That said, the compliance responsibility ultimately sits with the restaurant, so keeping a copy of your last passing inspection date and tag on file, and cross-checking it against your own records twice a year, is a simple habit that prevents the kind of accidental lapse that leads to a failed health inspection at the worst possible moment.
Yes. NFPA 17A’s six-month inspection requirement applies to any kitchen hood suppression system protecting commercial cooking equipment, regardless of the size of the kitchen or the restaurant’s sales volume.
Yes, and doing so is generally a good idea. The six-month interval is calculated from your last passing inspection date, so scheduling a few weeks early does not shorten your compliance window, it just gives you buffer against scheduling conflicts.
The system has to be brought into compliance and retagged before it can be considered passing. If the health department or fire marshal visits before that correction is complete, the kitchen may be cited or, in some cases, ordered to stop using the affected cooking equipment.
Even a modest layout change can affect nozzle coverage, so it’s worth having a technician assess whether the change affects your existing suppression coverage before your next scheduled inspection.
The core NFPA 17A interval applies broadly to any commercial cooking operation using a hood suppression system, though specific configurations like mobile kitchens or shared commercial kitchen spaces can raise additional questions about who is responsible for scheduling. It’s worth confirming your specific setup with a licensed contractor rather than assuming.
Firemax Fire Protection provides semiannual kitchen hood suppression inspection for restaurants across Miami-Dade, Broward, Palm Beach, and Monroe Counties, with clear documentation and prompt deficiency correction.
Firemax Fire Protection | Florida Licensed Fire Protection Contractor | Miami-Dade, Broward, Palm Beach & Monroe Counties | Est. 1998