First Aid Kit Contents (ANSI Z308.1)

OSHA requires adequate first aid supplies to be readily available at work, but doesn’t list exactly what goes in the kit. The ANSI/ISEA Z308.1 standard fills that gap, and it’s what most workplace kits are built to.

Photo: open Class B first aid kit on a jobsite trailer wall showing bandages, trauma pads, a tourniquet and a splint

Class A vs. Class B

ClassFor
Class ACommon minor injuries: small cuts, scrapes, minor burns and sprains
Class BMore supplies for a broader range of injuries, in more complex or high-risk workplaces; includes a tourniquet and splint

Construction sites, plants and remote work usually need Class B kits, and often more than one.

What’s inside

Kit types

The standard also sorts kits by where they’re used: portable indoor kits, kits mounted in a fixed spot, kits for outdoor use, and rugged, water-resistant kits for harsh or mobile settings like trucks and equipment.

Add for your hazards

Check kits monthly and after every use. Replace used and expired items, and make sure everyone knows where the kits are. A trained first aider is required when there’s no clinic or hospital close by. See First Aid Basics.

Standards & references

  • 29 CFR 1910.151: Medical services and first aid
  • 29 CFR 1926.50: Medical services and first aid (construction)
  • ANSI/ISEA Z308.1: Minimum requirements for workplace first aid kits and supplies

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