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OSHA guide · Updated 29 Oct 2026

OSHA first aid kit requirements 2026: Class A vs Class B

Updated 29 October 2026 by the AED Best Brands editorial team · Rules quoted from the eCFR · Every number sourced

Short answer

OSHA requires adequate first aid supplies to be readily available (29 CFR 1910.151(b)) but lists no items. Its appendix points to ANSI/ISEA Z308.1: Class A for common injuries, Class B with more supplies plus a splint and tourniquet, and a foil blanket since 2022. Construction kits must be weatherproof and checked weekly. Class A kits cost $88.62 to $231.43 (29 Oct 2026).

ANSI A kit, $88.62 Class A vs B list

1Sentence in OSHA's kit rule
16 vs 50Bandages, Class A vs Class B
15 Oct 2022ANSI Z308.1-2021 in effect
$88.62ANSI A kit, 29 Oct 2026

01What does OSHA require for a first aid kit?

OSHA's general industry rule is one sentence: "Adequate first aid supplies shall be readily available"[1][3]. It does not list items. Its non-mandatory Appendix A points to the ANSI Z308.1 standard as an example of minimum kit contents for small worksites, and says larger or higher-risk sites may need more[1].

RuleWhat it saysApplies to
29 CFR 1910.151(b)Adequate first aid supplies readily available; a trained person if no clinic is nearMost workplaces
1910.151 Appendix AANSI Z308.1 as the example of minimum contents (non-mandatory)Guidance for all
29 CFR 1926.50(d)(2)Weatherproof container, sealed packages, checked before each job and at least weeklyConstruction
ANSI/ISEA Z308.1-2021Class A and Class B minimum fill; effective 15 Oct 2022The kit itself

So the working rule is: buy a kit labeled ANSI/ISEA Z308.1 Class A or Class B, keep it where people can reach it quickly, and restock it. Construction sites add the weekly check[2].

02Class A vs Class B first aid kit: what goes in each

ANSI sets two minimum fills. Class A covers common injuries; Class B carries more of most items plus a splint, a second roller bandage and a tourniquet[5]. The 2021 edition kept both classes and made a foil blanket mandatory[4].

Item (ANSI/ISEA Z308.1 minimum)Class AClass B
Adhesive bandages, 1 x 3 in.1650
Adhesive tape, 2.5 yd total12
Antibiotic application1025
Antiseptic1050
Breathing barrier11
Burn dressing, 4 x 4 in.12
Burn treatment1025
Cold pack, 4 x 5 in.12
Eye covering22
Eye/skin wash1 fl oz4 fl oz
First aid guide11
Hand sanitizer610
Medical exam gloves2 pair4 pair
Roller bandage, 2 in. x 4 yd12
Roller bandage, 4 in. x 4 yd01
Scissors11
Splint, 4 x 24 in.01
Sterile pad, 3 x 3 in.24
Tourniquet01
Trauma pad, 5 x 9 in.24
Triangular bandage12

The quantities above are the 2015 minimum fill published by the University of Texas EHS office[5]; add the foil blanket required since the 2021 edition took effect on 15 October 2022[4].

03Which class does your workplace need?

ANSI ties the choice to a workplace hazard assessment[4]. In practice the split looks like this (research-based recommendation, check your own injury logs):

Class A

Lower risk, small sites

  • Offices, retail, clinics, schools
  • Cuts, minor burns, eye irritation
  • Help nearby
Class B

Higher risk or remote

  • Manufacturing, warehouses, construction
  • Machinery, heavy bleeding risk
  • EMS farther away

OSHA's appendix says the same thing in its own words: use injury records (OSHA 300 and 301 logs) and local fire, rescue or medical advice to decide what to add, and reassess periodically[1].

04How much does an OSHA compliant first aid kit cost?

At AED Leader and Response Ready, ANSI Class A kits run $88.62 to $231.43, checked 29 October 2026[6]. Neither store lists a kit labeled Class B on that date.

KitPrice (29 Oct 2026)Best for
Waterproof 16 Unit ANSI A Recommended$88.62Offices and small sites, vehicles
36 Unit ANSI A+ (metal, wall mount)$231.43Larger sites; adds bloodborne pathogens and spill packs
MobileAid 50-Person Trauma$294.95Groups up to 50, 255 pieces
Bleeding Control Kit, Standard$56.95Adds a SWAT-T tourniquet and survival blanket
Bleeding Control Kit, Premium$91.80Adds QuikClot dressing and chest seals
Sourced calculation: Class A kit plus bleeding control
$88.62 ANSI A kit + $56.95 bleeding control kit = $145.57[6]
That adds the tourniquet (a Class B item) and a survival blanket, but Class B also needs higher counts of most items, so a high-risk site should buy a kit labeled Class B[4][5].

Start with an ANSI Class A kit

Waterproof 16 Unit ANSI A first aid kit: $88.62. Add a bleeding control kit with tourniquet for $56.95. Prices checked 29 Oct 2026.

ANSI A first aid kit, $88.62 See it at Response Ready
ANSI labeledWaterproof caseSame price at both stores

05Where to keep it and how often to check it

  1. Readily available: OSHA's own word[1]. Mount it on the main route, next to the AED if you have one, so one trip brings both.
  2. Construction: weatherproof container, sealed packages, checked before each job and at least weekly[2].
  3. Everyone else: check after every use and on a fixed date each month (research-based recommendation); log it with the AED maintenance checklist.
  4. Train someone: 1910.151(b) also requires a trained person when no clinic is near[1]; see OSHA first aid requirements.
  5. Blood exposure: if responders may touch blood, gloves and other protection are required under 1910.1030[1]; see bloodborne pathogens training.

A first aid kit does not cover cardiac arrest. Survival drops about 7 to 10 percent for each minute without CPR or a shock[7]; see what goes in an AED kit.

06OSHA first aid kit questions

Does OSHA require a first aid kit?

Yes, in effect. 29 CFR 1910.151(b) requires adequate first aid supplies to be readily available. OSHA does not list the items; its non-mandatory appendix points to the ANSI Z308.1 standard.

What is the difference between a Class A and Class B first aid kit?

Class A covers common injuries; Class B holds more of most items and adds a splint, a 4-inch roller bandage and a tourniquet. Class A has 16 adhesive bandages and Class B 50, under the ANSI minimum fill.

What changed in ANSI Z308.1-2021?

The 2021 edition, effective 15 October 2022, kept Class A and Class B, made a foil blanket mandatory, clarified tourniquets and expanded the workplace hazard assessment guidance.

How often should a first aid kit be checked under OSHA?

Construction rule 1926.50(d)(2) requires a check before each job and at least weekly. General industry has no set interval; check after every use and on a fixed monthly date.

Where should a first aid kit be located in the workplace?

Where it is readily available: on the main route, clearly marked and close to the people it serves. Larger or multi-floor sites need more than one kit.

How much does an OSHA compliant first aid kit cost?

ANSI Class A kits cost $88.62 to $231.43 at AED Leader and Response Ready (29 Oct 2026). A bleeding control kit with tourniquet adds $56.95.

Related guides

OSHA first aid requirements · OSHA CPR requirements · OSHA bloodborne pathogens training · Stop the Bleed certification · AED kit · CPR, AED and First Aid class

How we check: prices and plan terms are read from the live AED Leader and Response Ready listings on the date shown; rules are quoted from the eCFR and the published standard summaries listed under Sources. See our editorial standards and methodology. AED Best Brands is independent of AED manufacturers.

Sources

  1. eCFR, 29 CFR 1910.151 Medical services and first aid, and its non-mandatory Appendix A (text checked 29 Oct 2026).
  2. eCFR, 29 CFR 1926.50(d), first aid supplies in construction (text checked 29 Oct 2026).
  3. OSHA, Standard interpretation, 16 January 2007: "adequate first aid supplies shall be readily available".
  4. International Safety Equipment Association, ANSI/ISEA Z308.1-2021 Just the Facts: effective 15 October 2022, foil blanket now mandatory, expanded hazard assessment guidance.
  5. University of Texas at Austin EHS, First aid kit: ANSI/ISEA Z308.1-2015 minimum fill for Class A and Class B kits.
  6. AED Leader listings checked 29 Oct 2026 (Response Ready lists the same prices): Waterproof 16 Unit ANSI A kit $88.62, 36 Unit ANSI A+ kit $231.43 (metal, weatherproof, wall mountable, BBP and spill packs), MobileAid 50-Person Trauma kit $294.95 (255 pieces), Bleeding Control Kit Standard $56.95 (SWAT-T tourniquet, survival blanket), Bleeding Control Kit Premium $91.80 (adds QuikClot dressing and chest seals).
  7. American Heart Association, CPR Facts and Stats.

Updated 29 October 2026.

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