The short answer

⚠️ This is a general guide, not legal advice. Check the current Code of Practice and regulations from your state or territory regulator.

Who is responsible for first aid on a construction site?

Every person conducting a business or undertaking (PCBU) on site, including the builder, each subcontractor and any labour hire company, has a duty under the WHS Regulations (regulation 42) to provide first aid for its workers. Where those duties overlap, the businesses must consult, cooperate and coordinate with each other (WHS Act section 46).

In practice, the principal contractor (on construction projects worth $250,000 or more) usually sets up first aid for the whole site: kits, first aiders on every shift and the emergency plan, and explains them at site induction. Subcontractors should confirm in writing whose first aiders and kits their workers will use, and carry their own kit for small jobs and work away from the main site.

How many first aiders does a construction site need?

SiteSuggested first aidersNotes
Construction site1 for every 25 workersHigh risk under the Code of Practice
Remote construction site1 for every 10 workersFar from medical help or ambulance
Small crews and mobile workAt least 1 per crewOr a plan for quick access to a trained first aider

Cover every shift, including early starts, weekends and night works, and plan for first aiders who are on leave. First aiders should hold HLTAID011 Provide First Aid (renewed every 3 years) and refresh CPR every year. Work out your numbers with the first aid calculator.

What should be in a construction site first aid kit?

Start with the Code of Practice's suggested workplace kit (see what should be in a first aid kit), then add for the hazards on your site:

Use a tough container that keeps out dust and water, and soft packs for vehicles and crews. Browse ready-made construction first aid kit templates.

Where to keep first aid kits on site

Other first aid equipment for construction sites

Eye wash and showers

Provide eye wash where dust, cement or chemicals could get into eyes, and an emergency shower where hazardous chemicals could contaminate skin.

Defibrillator (AED)

The Code says to consider an AED where there is a risk of electrocution or an ambulance would be delayed, which applies to many sites.

Rescue from height

If workers use fall arrest harnesses, you must have emergency and rescue procedures, and test them (WHS Regulations r.80). Calling 000 is not a rescue plan.

First aid room

Large sites with 100 or more workers should consider a first aid room, as for any high-risk workplace.

Emergency plan and ambulance access

Every workplace needs an emergency plan (WHS Regulations r.43). On a construction site it should cover how to call for help, the site address and the gate ambulances should use, who meets the ambulance, and how to get an injured worker down from height or out of an excavation. Keep the site address and nearest hospital on the site board.

Incidents and records

FirstAidLog puts a QR label on every kit so anyone on site can see what's in it, lets supervisors check kits on their phone, and sends alerts before items or first aid certificates expire. See how it works.

Frequently asked questions

Is construction a high-risk workplace for first aid?

Yes. The first aid Code of Practice treats construction as high risk because workers face hazards that can cause serious injury. It suggests about one trained first aider for every 25 workers, or one for every 10 on remote sites.

How many first aid kits does a construction site need?

There is no fixed number. Every worker must be able to reach a kit quickly, so most sites have a kit in the site office or crib room, one on each floor or work zone, one in every site vehicle, and one with each crew working away from the main site.

Who provides first aid on a construction site, the builder or the subcontractor?

Both have the duty. Every business on site must provide first aid for its own workers, and they must consult, cooperate and coordinate with each other. In practice the principal contractor usually sets up first aid for the whole site and subcontractors confirm their workers are covered.

Do construction sites need a defibrillator (AED)?

The law does not require one on every site, but the first aid Code of Practice says to consider an AED where there is a risk of electrocution or where an ambulance would be delayed. That applies to many construction sites.

How often should construction site first aid kits be checked?

After each use and at least once every 12 months, which is the Code minimum. Site kits get heavy use and rough handling, so most builders check them weekly or monthly.

Sources: Safe Work Australia first aid Code · which Code applies in your state.

Keep every site kit checked

QR labels, phone inspections and expiry alerts for every kit on every site.

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