Danger vs Warning vs Caution vs Mandatory Signs

Danger vs Warning vs Caution vs Mandatory Signs — What’s the Difference?

🧱 Why the Right Safety Sign Matters

Ever walked onto a site plastered with signs and thought — “Aren’t they all saying the same thing?”
Not quite.

Each sign colour, shape, and wording type in AS/NZS 1319:1994 – Safety Signs for the Occupational Environment has a specific meaning and level of risk.
Using the wrong one can actually reduce compliance and confuse workers or inspectors.

Let’s break down the differences — so you can pick the right sign for every situation.

🟥 1. Danger Signs — Immediate Risk of Serious Injury or Death

Purpose:
Used where failure to follow instructions will likely result in serious injury or death.

Design:

  • Red oval with the word DANGER in white text

  • Black rectangle background

  • White lower panel with black text

Typical Uses:
Electrical hazards, confined spaces, explosive or flammable areas

Examples:

Kiwi Tip:
Think of it as the “no mucking around” category — when you see Danger, it’s time to take it seriously or head for a cuppa elsewhere. ☕

🟧 2. Warning Signs — Potential Danger, Moderate Risk

Purpose:
Used to warn of hazards or unsafe practices that could cause injury but aren’t immediately life-threatening.

Design:

  • Black triangle with black symbol on orange background

  • Optional black border and black text on white

Typical Uses:
Machinery hazards, high noise areas, hot surfaces, construction zones

Examples:

🟨 3. Caution Signs — Minor to Moderate Risk, Awareness

Purpose:
Used to alert workers to potential hazards that require care and attention, but not severe danger.

Design:

  • Black triangle with black symbol on yellow background

  • Black text on white or yellow panel

Typical Uses:
Slippery floors, forklift traffic, restricted areas

Examples:

Kiwi Tip:
If Danger is “drop your tools and run”, Caution is “keep your wits about ya”.

🟦 4. Mandatory Signs — Specific Actions Required

Purpose:
Used to indicate an action that must be followed to ensure safety — usually PPE or procedural requirements.

Design:

  • White symbol on solid blue circle

  • Optional black text on white panel

Typical Uses:
Eye protection, hearing protection, hard hats, gloves

Examples:

📋 Summary Comparison Table

Sign Type Colour Purpose Example Use
Danger Red / Black / White Imminent threat, severe injury or death High-voltage area, explosive zone
Warning Orange / Black Potential hazard, moderate risk Construction zone, hot machinery
Caution Yellow / Black Minor hazard, awareness required Slippery floor, forklift zone
Mandatory Blue / White Required action for safety PPE area, mask zone

⚙️ NZ & Australian Compliance

All safety sign designs, colours, and symbols must comply with:

  • AS/NZS 1319:1994 – Safety Signs for the Occupational Environment

  • WorkSafe NZ – Hazardous Substances and Signage guidance

  • *HSW (General Risk and Workplace Management) Regulations 2016

Using inconsistent or incorrect sign types can result in enforcement notices under the HSW Act.

🧩 Related Reading

⚖️ External References

💬 Note

Choosing the right sign for the right hazard makes all the difference — both for compliance and worker safety.
At Hazard Signs NZ, we supply a full range of compliant Danger, Warning, Caution, and Mandatory signs, printed locally on laminated outdoor-grade vinyl.
Need help selecting the right type? Contact us — we’ll make sure your site passes every WorkSafe check without a hitch.

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