Workplace First Aid Kit Requirements in 2026: What OSHA Expects and What Actually Helps

First aid kits are one of the most basic safety items on any job site, and also one of the most misunderstood. Contractors and industrial teams often ask us whether their kit meets OSHA, as if there were a single checklist that satisfies every workplace. The reality is more nuanced. Here is what the current rules and guidance actually say, and how to think about first aid readiness for your projects in 2026.

What OSHA Actually Requires

For general industry, OSHA's medical services and first aid standard is 29 CFR 1910.151. The binding requirement is straightforward. In the absence of an infirmary, clinic, or hospital in near proximity to the workplace, employers must ensure that a person trained to render first aid is available, and that adequate first aid supplies are readily available.

Notice what that language does and does not say. OSHA requires that first aid supplies be adequate and readily available, but the standard itself does not list specific kit contents or quantities. It does not name a particular brand, size, or configuration. What counts as adequate depends on the hazards and conditions of your specific workplace.

Where ANSI Z308.1 Comes In

Because OSHA does not itemize kit contents, the agency has long pointed employers to the voluntary national consensus standard ANSI/ISEA Z308.1 for guidance. OSHA references this standard in a non-mandatory appendix to 1910.151, and in staff interpretations has repeatedly described it as a source of guidance for minimum first aid kit requirements.

The current edition, ANSI/ISEA Z308.1-2026, organizes workplace kits into two classes:

Class A kits are intended for general workplaces and cover the most common injuries, such as minor cuts, abrasions, and burns.
Class B kits are intended for workplaces with a higher risk of severe injuries and include a broader range and quantity of supplies.

Following ANSI Z308.1 is a practical way to show that your kit is reasonably stocked, but it is guidance, not a binding OSHA mandate on its own. The binding obligation remains OSHA's: adequate supplies, readily available, matched to your workplace.

Why One Kit Does Not Fit Every Site

This is the part that matters most for project teams. What is adequate for a small office is not adequate for a construction site, an energy facility, or an industrial operation. Your first aid needs depend on several factors that change from project to project:

Workplace hazards. The types of injuries you can reasonably anticipate, from minor cuts to more serious trauma.
Workforce size and shifts. More workers and more shifts usually mean more kits, or kits in more locations.
Distance to medical care. Remote sites far from a clinic or hospital may need more supplies and more trained responders on hand.
Applicable rules. Construction, general industry, maritime, and certain state plans can carry different or additional requirements.

In other words, compliance is not a single kit you buy once. It is a judgment about what your site actually needs, informed by the work being done and the people doing it.

Practical Steps for Project Teams

If you are responsible for site safety, a few practical steps help keep first aid readiness on track:

Walk the site and identify the hazards and injury types you can reasonably anticipate.
Match kit class and quantity to those hazards, using ANSI Z308.1 as a starting point.
Place kits where they are genuinely accessible, not locked away or buried in a trailer.
Check kits on a regular schedule and restock items that have been used or have expired.
Confirm that someone on each shift is trained to render first aid when professional medical help is not close by.

How Rally Approaches First Aid Readiness

First aid supplies are part of how Rally Safety Solutions supports project teams, but they are not our whole business. Safety-professional recruiting and direct-hire placement is our core service, with site safety readiness visits, scheduled audits, portal compliance support, and first-aid and facility supplies available alongside it.

Through a Site Safety Readiness Visit, we can look at first-aid supplies, AED readiness, eyewash stations, basic visual fire-extinguisher checks, and key documentation gaps, then provide a concise summary of observations and recommended next steps. We do not certify compliance or guarantee that any kit meets every applicable rule, because that depends on your specific workplace, hazards, and governing requirements. What we can do is help you see where you stand and what to address next.

The Bottom Line

OSHA requires adequate, readily available first aid supplies matched to your workplace. ANSI Z308.1 gives you a practical framework for what adequate looks like, but your real obligation is to assess your site honestly and stock accordingly. If you want a second set of eyes on first-aid readiness for your next project, request safety staffing or start with a Site Safety Readiness Visit. You can also call 307-222-8987 to talk with a specialist.