First-aid provisioning is one of the few compliance purchases where the rule, the standard and the product line up neatly — once someone explains which class and type of kit a construction crew actually needs. Here is the short version, without the scare copy.
In a hurry — the picks (affiliate links — as an Amazon Associate I earn from qualifying purchases; details and rules below)
| Default crew kit (up to ~25) | First Aid Only 9302-25M contractor's kit |
| The working site (Class B) | Lightning X 364-pc Class B+ hi-vis hard case |
| Small crew / service truck | First Aid Only 6060 10-person |
| Vehicle-mounted, ANSI 2021 stated | First Aid Only 91336 metal kit |
For construction, the governing rule is 29 CFR 1926.50. In plain terms:
Two practical notes. First, general-industry work falls under 1910.151 instead, with the same shape: trained person, accessible supplies. Second, if you work under hiring clients or a general contractor, their requirements — not just OSHA's — are the ones your crew gets audited against, and prequalification questionnaires routinely ask how first aid is provisioned. Verify against your client's requirements rather than assuming the minimum is enough.
ANSI/ISEA Z308.1 (current edition 2021) defines two content classes and four container types:
Rule of thumb: an office trailer can justify Class A; the working site itself is Class B territory, and anything that rides in a truck should be Type III/IV regardless of class.
These are specific, widely reviewed kits that state their ANSI class plainly. Check the stated class and person-count against your crew before buying, and read current reviews — stock and packaging change.
Fits: the default crew kit — renovation and construction crews up to ~25 people, one per site.
Why this one: it is the category's standard answer — thousands of reviews, contractor-oriented fill, sold specifically for job sites and construction vehicles.
Fits: the actual working site — larger or higher-risk crews where Class B is the right read of Z308.1.
Why this one: a genuine Class B fill in a fluorescent hard case a crew can spot across a deck; dual-layer organization so the tourniquet is not under the bandages.
Fits: small crews, service trucks, and the second kit for a split crew.
Why this one: compact, inexpensive, and one of the most-reviewed workplace kits on Amazon — the right size to put in every vehicle rather than arguing about which truck has the kit.
Fits: work trucks and the office trailer — a mountable metal case stated against the current 2021 edition, Class A fill.
Why this one: when a hiring client's checklist says "ANSI Z308.1-2021 compliant kit, mounted," this is the literal answer.
OSHA requires first-aid supplies to be easily accessible when required (1926.50(d)(1)), and a first-aid-trained person on site when a clinic or hospital is not reasonably accessible. In practice, every working site keeps at least one stocked kit — and hiring clients' rules usually say so explicitly.
Class A covers the common workplace injuries — cuts, minor burns, sprains. Class B carries larger quantities plus additional items such as a tourniquet and splint, and is intended for higher-risk, more complex, or more populated environments — which is how most construction sites should read it.
Enough that supplies are "easily accessible" from wherever crews are working — a multi-floor or spread-out site usually means one kit per work area or vehicle rather than one at the trailer. The person-count rating on the kit (10, 25, 50) is the sizing guide.