Most trauma kits get bought once, packed into a truck, a range bag or a desk drawer, and left alone. That works for a lot of gear. You can click a flashlight to see whether it still works. You can't test a tourniquet or a chest seal without using it up.
As an authorized North American Rescue dealer, I get asked some version of "does this expire?" fairly often. The short answer is that some parts carry a printed date, some don't, and the ones without a date can still wear out. This guide covers storage, inspection and replacement, based on what the manufacturers publish. It does not cover how to use the gear. That takes hands-on training.
Two kinds of expiration
A printed date. Sealed, sterile items carry an expiration date on the package. That includes the hemostatic gauze and chest seals we stock, and over-the-counter medications. The manufacturer sets that date for each product, and it can change over time. QuikClot, for example, announced a five-year shelf life for Combat Gauze in 2015. Read the date on the package you own rather than assuming one number fits everything.
Condition, not a calendar. Tourniquets work differently. North American Rescue says the C-A-T is "a single-use medical device and has no shelf life as long as it remains unused, in protective packaging, and stored in a dry, dark, climate-controlled space." The same page says that once the tourniquet has been used, or "exposed to inclement weather such as hot/cold temperatures, sand, dirt, etc., the shelf life will then become obsolete." NAR also names a warning sign to look for: "Discoloration is a good sign that it's time to replace it." North American Rescue: Do C-A-T® Tourniquets Expire?
Why the truck is the hard case
A vehicle is about the least climate-controlled place most of us keep anything. The National Weather Service notes that "a dark dashboard or seat can easily reach temperatures in the range of 180 to over 200°F." National Weather Service vehicle heat safety.
That doesn't mean the kit belongs in the house. A trauma kit is most useful where you are, and for a lot of our customers that's in or near a vehicle. It means a vehicle kit needs more frequent checks, and it deserves the best spot you have:
- Out of direct sun. Behind or under a seat beats the dash, the rear deck or an open bed.
- Closed. A zipped pouch or case keeps out light, dust and sand, which NAR lists right alongside temperature.
- Easy to find. A kit staged in the passenger compartment, such as the NAR Headrest IFAK, is easier to reach than a bag buried under recovery gear. Make sure everyone who rides with you knows where it is.
In the package or out of it?
NAR's "no shelf life" statement assumes the tourniquet is still in its protective packaging. Snakestaff, which makes the ETQ, tells owners to "open the packaging and handle the tourniquet before it goes into a kit." Snakestaff ETQ Gen 2 instructions.
Those two statements don't contradict each other. You should know how the tourniquet you carry opens and deploys before you need it. Once it's out of the package, though, it's exposed, so it needs to be inspected more often. Follow the instructions from the manufacturer of the tourniquet you actually carry.
Never train with the one you carry
Both manufacturers are clear on this. NAR says that after one use, a C-A-T "should not be reused," and it makes a blue C-A-T Trainer "specifically designed for repeated practice use." Snakestaff puts it this way: "Practise on a trainer, not on the one you carry. Repeated tightening cycles are exactly what a tourniquet you intend to rely on should not have had."
If you've been practicing with the tourniquet in your kit, it's now a trainer. Mark it as one and put a new tourniquet in the kit. We carry the blue C-A-T Trainer and the ETQ Gen 2 Trainer in Regular and Wide, so you can practice without wearing out the one you rely on.
Where it came from matters
Counterfeit tourniquets are a documented problem. On September 30, 2024, the U.S. International Trade Commission issued a general exclusion order in Investigation No. 337-TA-1364, a case brought by Composite Resources and North American Rescue. The order bars imports of tourniquets that infringe the patent claims it names. USITC notice. NAR also points out that "C-A-T® tourniquets are only made in the United States." North American Rescue on the exclusion order.
An exclusion order works at the border. It doesn't pull back what was already sold. Buying from an authorized dealer is the simplest way to know what you're carrying. Stay Ready Outdoors is an authorized North American Rescue dealer, and where a tourniquet came from is part of inspecting it.
A six-month kit check
This needs no special training, just a table and a few minutes per kit. Do it twice a year. Tying it to the clock changes in March and November makes it easy to remember. If a kit lives in a vehicle, add a check at the end of summer.
- Empty it. Lay everything out and compare it with the kit's contents list. Replace anything missing or borrowed.
- Read every printed date. Replace anything expired. Write the earliest remaining date on a strip of tape on the outside of the kit so you can see it without opening it.
- Check the packaging. Torn, punctured or water-damaged packaging means the item inside is no longer sealed. Replace it.
- Inspect the tourniquet. NAR's own checklist for the C-A-T: the windlass is intact and works, the self-adhering band shows no wear, the edges aren't fraying, the stitching isn't coming loose, and the color hasn't changed. For any other tourniquet, use its maker's instructions. Replace it if it fails a check, if it has ever been used on someone, or if it has been used for practice.
- Check the gloves. Heat is hard on nitrile. If a pair feels tacky or brittle, or splits when you pull it on, replace it.
- Check the tools. Make sure the shears open and cut, and swap the batteries in any light that lives in the kit.
- Write it down. Note the date and what you replaced. A card kept in the kit is enough.
Replacing what doesn't pass
If one component fails the check, replace that component rather than the whole kit. These are the parts we stock:
- Tourniquets: Combat Application Tourniquet (C-A-T) and Snakestaff ETQ Gen 2
- Hemostatic dressing: ChitoGauze XR PRO
- Pressure dressing: Emergency Trauma Dressing (ETD), 4 in.
- Chest seals: HyFin Vent Chest Seal Twin Pack
- Gloves: NAR Bear Claw Nitrile Gloves
If the kit itself is worn out, or you're building a vehicle kit from scratch, the NAR Headrest IFAK and our LYNX IFAK | CORE are complete options. The full range is in our Trauma First Aid collection.
Gear is only half of it
Everything above is about keeping the gear ready. Using it is a separate skill, and a kit doesn't replace it. If you carry a tourniquet, take a hands-on course. The American College of Surgeons says most Stop the Bleed courses run 90 minutes or less, and the skills portion is completed in person. ACS Stop the Bleed FAQ.
Not sure whether something in your kit is still good? Send us a photo of the contents and the dates, and we'll help you work out what needs replacing.
Related Field Manual guides
- When Seconds Count: Why Your Off-Road Rig Needs Real First Aid Gear
- Preparedness in Your Pocket: Meet the Snakestaff ETQ Gen 2 Tourniquet
- Building a Vehicle Emergency Kit That Actually Works
Featured image courtesy of North American Rescue, from its article "Do C-A-T® Tourniquets Expire?" Used with credit.
