What Fire Marshals Check at a Fair Inspection

I’ve been setting up at state fairs and festivals for over 20 years. In that time I’ve seen vendors get shut down on opening morning, watched fire marshals give some operators a pass and hammer others for the same violations, and learned exactly what separates the people who sail through inspection from the ones scrambling to find a fire extinguisher company at 7 AM.

Now I run Falls Fire Protection. So I’m literally on both sides of this.

Here’s what the fire marshal is actually looking for — and why most vendor failures are 100% preventable.

The Fire Marshal’s Priority List

Fire marshals at fairs and festivals are working fast. They’re inspecting dozens or hundreds of vendor booths in a short window before the gates open. They’re not trying to fail you — they’re trying to identify actual fire hazards quickly and move on.

Their checklist, in rough priority order:

1. Current Inspection Tags

This is the most common reason vendors get shut down: expired tags.

Fire extinguishers need an annual inspection tag from a certified technician. Hood suppression systems need a semi-annual inspection tag. If either is expired, you’re not opening until it’s resolved — and at a fair, you can’t resolve it on-site.

The marshal looks at:

The date on the tag (not just whether there IS a tag)
The technician certification number (required on the tag — if it’s not there, it may not be a valid inspection)
Whether the tag matches the equipment (a tag from a different extinguisher doesn’t count)

How to avoid this: Get your inspections done 4-6 weeks before your first event. Don’t wait until the week of the fair. And keep a copy of your inspection report in your operations binder — some marshals ask for the paperwork, not just the tag.

2. Gauge Readings

After tags, gauge checks are the fastest item on the list. For extinguishers: gauge in the green? Good. For hood suppression cylinders: pressure indicator showing within spec? Good.

This takes 10 seconds per unit. If anything is in the red, you have a problem.

How to avoid this: Do a quick walk-through of your own equipment before you arrive at setup. Pressures can drop slowly over time. If a gauge is borderline, get it recharged before the fair — not after the marshal fails you.

3. Class K Extinguisher Presence

If you’re cooking with oils — fryers, griddles, woks — you need a Class K wet chemical extinguisher in addition to your ABC. This is one of the most commonly missing items at fair inspections. See our breakdown of fire extinguisher types for food trucks for the full explanation.

Class K extinguishers are yellow/cream colored (not red like standard ABC units). They contain wet chemical agent that handles cooking oil fires through saponification — turning the grease into a soapy foam that smothers the fire and prevents re-ignition.

NFPA 96 requires a Class K within 30 feet of any commercial deep fat fryer. A lot of vendors know they need the ABC but don’t know about the Class K requirement — especially if they’ve never been asked for it at smaller local events.

How to avoid this: If you use a fryer, you need both. Period. If you’re not sure, call your local fire marshal before the event and ask. They’ll tell you.

4. Hood Suppression Pull Station Accessibility

The manual pull station for your hood suppression system needs to be:

Accessible (not blocked by equipment, bags, or carts)
In the path of egress (the way you’d exit the booth in an emergency)
Labeled (usually the pull station has a red handle and a label — make sure it’s visible)

In a small trailer or food truck, everything gets crowded. Vendors pile stuff in corners. The pull station ends up behind a case of product or blocked by a cart. Marshal sees it, fails it.

How to avoid this: Walk through your booth before setup and make sure the pull station is clear and reachable from 3 feet away. This takes 30 seconds.

5. Gas Connections

Propane inspections vary more than anything else on this list — every marshal and every fair has slightly different standards. But the basics they look for:

Rated hose — LP gas hoses need to be specifically rated for LP use. Regular garden hose or shop hose does not count.
No visible damage — cracked, kinked, or worn hose is an automatic fail
Proper connections — fittings tight, no gas smell, no visible leaks
Shut-off accessible — you should be able to reach the main shut-off quickly

Some fairs require a specific type of connection or hose length. Check with the fair office before you arrive if you’re not sure — they usually have a vendor guide.

6. Hood Cleanliness

This one surprises vendors. The fire marshal isn’t just checking your equipment — they may look inside your hood and duct for grease buildup. Grease is a fire accelerant. An over-grease hood is a genuine fire risk and some marshals take it seriously.

NFPA 96 specifies hood cleaning frequency based on cooking volume. High-volume frying operations (state fair level) can accumulate dangerous grease buildup surprisingly fast.

How to avoid this: Clean your hood and duct before fair season, especially if you had a busy previous season. If you’re not sure how clean “clean enough” is, ask a fire protection company to take a look — it’s part of a thorough inspection.

7. Clearances Around Cooking Equipment

Combustible materials — paper, cardboard, cloth, plastic bags, wood — need to be kept away from cooking surfaces. How far depends on the equipment and local requirements, but a good rule of thumb is 18 inches from any open flame or high-heat surface.

This is a judgment call inspection item. A messy, cluttered booth gets scrutinized more than a clean, organized one. Keep your setup tidy.

Why Some Vendors Get Passes and Others Don’t

Here’s the honest truth: fire marshals have discretion, and how you interact with them matters.

A vendor who is visibly organized, knows where their equipment is, can point to the tag without being asked, and is clearly prepared — that vendor gets the benefit of the doubt on borderline issues.

A vendor who is scrambling, doesn’t know where their extinguisher is, has expired tags from two years ago, and is arguing with the inspector — that vendor gets every item on the checklist.

Be prepared. Be professional. Know your equipment. That’s 90% of passing.

The Pre-Season Checklist

Print this and go through it 4-6 weeks before your first event:

What to Do If You Get Failed at Setup

Stay calm. Ask the marshal specifically what the issue is and what you need to do to pass. Most issues fall into three categories:

Missing or expired tags — You need a certified fire protection company to come to you. That’s possible at some fairs (especially larger ones) but not all. This is why you get inspections done in advance.
Equipment issue — Failed gauge, discharged extinguisher, system problem. Same solution — you need a certified tech. Time is not on your side here.
Housekeeping or clearance issue — Usually fixable on the spot. Clear the pull station, move the combustibles, get the propane hose situation resolved.

If the issue is tags or equipment, call Falls Fire Protection at (605) 521-6542. We can often respond quickly for emergency situations, especially during fair season when we’re already in the circuit.

Falls Fire Protection specializes in food truck and concession vendor fire compliance. We’re based in Sioux Falls and serve vendors across South Dakota. Contact us to get on the schedule before fair season — prep packages available.

What the Fire Marshal Looks for at Your First Fair — A Vendor's Guide