Caution vs Danger vs Warning: What’s the Difference?
In workplaces across New Zealand and Australia, safety signs play a critical role in protecting workers and visitors. But not all signs mean the same thing — and understanding the difference between Caution, Warning, and Danger signs is essential for proper compliance with AS/NZS 1319:1994 and Health and Safety at Work (HSW) regulations.
So, what exactly separates these signs? Let’s break it down.
🟡 Caution Signs
Signal Word: CAUTION
Used when: The hazard may cause minor or moderate injury if not avoided.
Colour: Typically yellow background with black text or symbol.
Examples:
Caution: Wet Floor
Caution: Forklift Operating
Caution: Hot Surface
NZ Use Case: Commonly placed in warehouses, kitchens, and anywhere minor injuries could occur if care isn’t taken.
🟠 Warning Signs
Signal Word: WARNING
Used when: The hazard could cause serious injury or death, but isn’t as immediate or certain as danger.
Colour: Usually orange background with black symbol/text.
Examples:
Warning: Flammable Gas
Warning: Keep Clear of Moving Parts
NZ Use Case: Found in plant rooms, machinery areas, and chemical storage facilities where significant risks are present.
🔴 Danger Signs
Signal Word: DANGER
Used when: There’s a high risk of death or serious injury from immediate hazards.
Colour: Black, white, and red — the most visually urgent colour scheme under AS/NZS 1319.
Examples:
Danger: High Voltage
Danger: Confined Space
Danger: Keep Out
NZ Use Case: Electrical rooms, confined spaces, construction zones — any situation with an immediate life-threatening hazard.
📏 Why This Matters Under AS/NZS 1319:1994
The Australian/New Zealand Standard clearly defines when each sign type should be used. Using the wrong category of sign may:
Mislead workers or make them underestimate a serious hazard
Result in non-compliance during safety audits
Lead to legal liability in the event of an incident
✅ Quick Reference Table
Type | Signal Word | Severity | Colour Scheme |
---|---|---|---|
Caution | CAUTION | Minor/Moderate Injury | Yellow & Black |
Warning | WARNING | Serious Injury / Possible Death | Orange & Black |
Danger | DANGER | Immediate Death/Injury Risk | Red, Black & White |