OSHA 29 CFR 1910.151 requires that employers ensure the ready availability of medical personnel for employee health matters, and that first aid supplies approved by a consulting physician be readily available at each worksite where there is no infirmary, clinic, or hospital in near proximity.

OSHA references ANSI/ISEA Z308.1 as guidance on minimum first aid kit contents. The 2021 revision defines two classes: Class A for basic hazard environments (small offices, retail, light manufacturing) and Class B for extended hazard environments (construction, industrial, manufacturing). Kits must be inspected regularly, and depleted or expired items must be replaced promptly.

Under ANSI/ISEA Z308.1-2021:

• Class A kits are designed to address the most common types of workplace injuries — minor cuts, abrasions, burns, and sprains. They contain a basic assortment of bandages, gauze, antiseptic wipes, burn treatment, and a few other items. Suitable for low-hazard workplaces: offices, retail, light assembly environments. The 25 Person First Aid Kit meets Class A.
• Class B kits contain a broader and larger supply of items, including tourniquets, trauma dressings, and more substantial wound care materials, designed for higher-risk workplaces — construction, manufacturing, utilities, and industrial plants. The 50 Person Contractor Kit and 100 Person Cabinet meet Class B+ requirements.

Kit size should be matched to the number of employees in the work area and the risk level of the work. General guidance:

• Up to 25 workers, low-hazard: 25 Person ANSI A kit — suitable for offices, small shops, and vehicles.
• Up to 50 workers, construction/industrial: 50 Person Contractor ANSI B+ kit
• Up to 100 workers, industrial/manufacturing: 100 Person 3-Shelf Metal Cabinet ANSI B+
• Up to 200 workers, large facility: 200 Person 5-Shelf Metal Cabinet ANSI B

For multi-building facilities, each work area should have its own kit or cabinet accessible within a reasonable travel distance. Consult OSHA 1910.151 and your facility's occupational health consultant for formal guidance.

OSHA does not currently mandate AEDs in most general industry workplaces at the federal level. However, many states have AED requirement laws for specific settings (schools, fitness facilities, large public gatherings), and OSHA's General Duty Clause (Section 5(a)(1)) can apply if an employer knows that sudden cardiac arrest (SCA) is a recognized hazard and fails to take feasible abatement steps.

The American Heart Association recommends that AEDs be available within a 3–5 minute response time in any setting where workers may be present. The Zoll AED Plus is designed for use by untrained bystanders and provides real-time CPR coaching — 10 compressions per minute guidance and depth feedback — making it one of the most effective workplace AEDs available. Always consult applicable state and local law.

OSHA requires that first aid kits be maintained in a sanitary condition and that supplies be adequate for the work being performed. Best practice, aligned with ANSI Z308.1, is:

• Monthly visual inspection — verify all required items are present, in adequate quantity, and within expiration dates.
• Restock after every use — depleted items should be replaced immediately following any first aid event.
• Annual review — confirm the kit class still matches the current worker population and hazard profile of the work area.

Safe-Fast stocks First Aid Only refill packs and individual refill components compatible with all First Aid Only kit models in this category.