Do First Aid Supplies Expire? First Aid Kit Expiration Guide (2026)

Do first aid supplies expire?

Published August 16, 2026

Short answer: Yes — in two different ways. The dated layer of a first aid kit expires by the printed date: antiseptics, ointments, burn gel, eyewash solution, medications, and every sterile item whose sterility is warranted only until that date. The rest of the kit fails functionally instead — adhesive that no longer sticks, gloves that tear, elastics that have lost recovery — with no date to warn you. Both failure modes matter to OSHA 29 CFR 1910.151(b), because supplies that no longer perform are no longer "adequate," and inspectors have cited kits that were full but expired.

First aid kit expiration chart: item by item

The chart runs the common contents of an ANSI/ISEA Z308.1 workplace kit. "Where the date lives" tells you what to look for on the package; where a supply carries no reliable date, the failure column is the inspection target.

The two failure modes behind the chart

Dated failures: potency and sterility

Anything that is a drug — antiseptics, antibiotic ointment, burn gel, OTC tablets — carries an expiration date under FDA drug labeling rules, and the date is the end of the potency warranty. Anything sterile — dressings, pads, eyewash, hemostatics — carries a sterility warranty that ends at the printed date or the moment the packaging is breached, whichever comes first. Neither failure is visible: an expired wipe looks exactly like a fresh one. That is why the first aid kit inspection checklist treats date-reading as its own step rather than part of a general look-over.

Functional failures: adhesion and elasticity

Adhesive bandages, tape, gloves, elastic wraps and tourniquet components fail by material aging — heat, UV and ozone do the damage, and a printed date, where one exists, is only a proxy. The test is functional: a bandage that will not stick to a dry wrist, tape that will not hold a dressing edge, a glove that tears on donning. Storage decides the timeline, which is why the same product lasts differently in an office cabinet and a truck cab.

Heat, vehicles, and outdoor kits: why dates arrive early

A parked cab in summer is an oven, and heat is the accelerant for almost every failure in the chart — gels dry, adhesives creep, gloves embrittle, sachets desiccate. Treat printed dates on a vehicle first aid kit as optimistic, inspect dated stock harder than the calendar suggests, and favor kits whose contents sit in individually sealed packages inside a weatherproof case — on construction vehicles that container spec is the law, under 29 CFR 1926.50(d)(2). The same logic applies to outdoor first aid kits that live in packs and job boxes.

What OSHA actually says about expired supplies

No OSHA rule prints the word "expiration" for general industry first aid kits. The enforcement hook is 29 CFR 1910.151(b): adequate first aid supplies shall be readily available — a continuous performance duty. Expired supplies no longer deliver the performance the ANSI/ISEA Z308.1 class fill assumes, so a kit full of out-of-date stock can be treated as inadequate even though every count is right. Construction adds the schedule that catches it: the kit must be checked before it goes out on each job and at least weekly on the job. The full regulatory decode lives in our OSHA first aid kit requirements explainer.

The rotation workflow that keeps a kit in date

1. Log the earliest date in the kit. At every inspection, write the soonest-expiring item and its date on the card inside the lid. The next check starts there instead of re-reading every wrapper.
2. Sweep everything dated within the next cycle. If the next check is a month away, anything expiring inside that month leaves now — a kit is not compliant on average, it is compliant on the day it is opened.
3. Restock with class-matched refills. Loose replacements drift the fill away from its Z308.1 class; first aid kit refills arrive unit-packaged, dated, and counted against A or B fills.
4. Rotate forward, not sideways. New stock goes behind old so the shortest-dated units are used first — the same first-in, first-out logic a stockroom runs.
5. Dispose of drugs and sharps properly. Expired medications leave the workplace stream — do not shift them to a break-room drawer — and used sharps go to a rated container, never the kit.

Frequently asked questions

Do first aid kits expire as a whole?

The container does not; the fill does, in layers. Some manufacturers print a kit-level date reflecting the shortest-dated component, but after the first restock that date means nothing — track items, not the box, using the chart above.

Do bandages really expire?

The fabric does not rot on a schedule; the adhesive and the sterility warranty do. A dated sterile bandage is only warranted sterile to that date, and an undated one fails when its adhesive dries — test one against a dry wrist if the box has sat for years.

Is it illegal to have expired supplies in a workplace first aid kit?

There is no rule naming expiration, but OSHA can cite the kit as inadequate under 1910.151(b) because expired supplies no longer perform. Inspectors have written citations for depleted and expired kits that were compliant when purchased.

Do unopened sterile dressings last forever?

No — sterility is a warranty with an end date, printed on the wrapper. Past it, the maker no longer stands behind the sterile barrier even if the package looks perfect, and a breached or damp wrapper voids it early.

How long does burn gel last?

Until the date on the sachet or bottle — there is no universal figure, and heat shortens real-world life well below the printed date. Kits staged near heat, kitchens and hot work should have their burn care layer checked most often.

Does saline eyewash expire?

Yes, and it is one of the strictest items in the kit: the date bounds the solution's sterility, and an opened bottle is finished regardless of date. Wall-mounted bottles are supplementary only — where corrosives are used, an ANSI Z358.1 station is the requirement, covered in our ANSI Z358.1 eyewash station requirements guide.

Do nitrile gloves expire?

Nitrile embrittles with heat, UV and ozone; many boxes carry a manufacturer date, and the functional test is donning — tacky, stiff or discolored gloves are done whatever the box says. Store them dark and cool, not on a sunny dash.

Do tourniquets expire?

Most duty tourniquets carry manufacturer inspection guidance rather than a single printed date: elastics and hook-and-loop age, sun and heat accelerate it, and a unit used in training is retired from duty. Follow the maker's published guidance and inspect at every kit check.

Do hemostatic dressings expire?

Yes — the pouch carries a printed date bounding both the agent's warranted effectiveness and the packaging's sterility. Past it, replace; bleeding control is the last place to run expired stock.

What about the medications in the kit?

Unit-dose OTC medications carry FDA-required expiration dates and leave the kit when they pass. Sweep them at every inspection — tablets are the most commonly expired item found in workplace kits.

Do instant cold packs expire?

Most lines print a date, and the practical failures come earlier: a weeping inner pouch, a swollen pack, or one that already went cold once. Squeeze-check at inspection and replace anything suspicious.

How often should I check expiration dates?

At every kit inspection — monthly is the accepted general industry cadence, and construction kits must be checked before each job and at least weekly on the job under 1926.50(d)(2). The full walkthrough is in our first aid kit inspection checklist.

Can I keep expired items as backups?

No — a mixed kit defeats the point, because responders cannot date-check mid-emergency. Expired stock leaves the kit entirely; if budget forces choices, prioritize replacing sterile and drug items first, since those failures are invisible.

Does storage location change expiration?

The printed date assumes reasonable storage; heat, sun and moisture all shorten real life below it. The same fill lasts longest in an indoor wall cabinet and shortest in a vehicle or outdoor case — match inspection frequency to the storage, not just the calendar.

What is the cheapest way to keep a kit in date?

Class-matched refill packs on a scheduled rotation. Replacing a dated tray costs a fraction of replacing the kit, and buying to the class keeps the count aligned with the ANSI Class A vs Class B first aid kits minimums.

Further reading on this site

• First aid kit inspection checklist — the walkthrough that catches dated stock before an inspector does.
• First aid kit refills — dated, unit-packaged restock trays matched to Class A and B fills.
• OSHA first aid kit requirements — why "adequate" is the enforcement hook for expired supplies.
• First aid kit selector — five questions to the right class and format before you stock anything.
• First aid kits — complete kits with published class fills.
• Bandages and wound care — the highest-turnover layer, and the first to need rotation.

Why trust WC Safety

WC Safety is an independent, affiliate-supported review site. It is not a retailer: it holds no inventory, takes no orders, and earns only from qualifying purchases through clearly marked links — which never changes what a product is rated to do. This page states where expiration dates come from — FDA drug labeling for medications and topicals, sterility warranties for sterile goods, manufacturer guidance for hardware like tourniquets — and deliberately publishes no invented shelf-life figures: where no date governs, the failure sign to inspect for is given instead. We run no laboratory and perform no testing of our own.

Our methodology

Researched and written by Steven Eaton, editor of WC Safety. Steven holds no safety certification and does not test products; this page reports what regulators and manufacturers publish, with the gaps in that record marked. Last reviewed August 2026.