Dangerous Goods Placard Sizes 2027

HAZCHEM and bulk placard letters must be at least 100 mm high, packaged store class labels at least 100 mm a side, and bulk placard class labels 250 mm a side in the WHS states. Source: WHS Regulations Schedule 13.

The law sets the size of what is printed on a dangerous goods placard: the height of the letters and the size of the class label. It does not set the size of the panel. Pick the panel that fits the wording at those sizes.

These are the rules in force going into 2027.

Minimum sizes

Placard	Letters	Class label
HAZCHEM outer warning	At least 100 mm high, red (Signal Red, AS 2700S R13) on white or silver	None
Packaged store placard	No wording	Sides at least 100 mm, in the ADG form and colour, on white or silver
Bulk placard	At least 100 mm high, black on white. At least 50 mm when the shipping name needs two lines	WHS states: sides at least 250 mm, or at least 200 mm when a subsidiary hazard label is shown (that label at least 150 mm)
Combustible liquid placard	COMBUSTIBLE LIQUID, at least 100 mm high, black on white or silver	None

A class label is measured along one edge of the diamond, not from corner to corner.

Why the panel size follows the wording

A bulk placard carries a shipping name, a UN number and a Hazchem code at 100 mm or more, plus a class label. A long shipping name, or a subsidiary hazard label, needs a bigger panel. Write out the wording first, then choose the size. A wide panel with small letters does not meet the rule, so check the letter height on the artwork, whatever you buy.

Our sizes

Sign	Sizes
Dangerous goods placards	270 x 270 mm, aluminium or polypropylene
Bulk storage signs	600 x 150 mm, and 800 x 400 mm on some
Emergency information panels	400 x 300, 400 x 400 or 800 x 600 mm

For picking a size and material by where the sign goes, see choosing the right size.

Which part of the regulation sets the sizes

State or territory	Where the sizes are	Regulation
New South Wales	Schedule 13 Placard requirements	Work Health and Safety Regulation 2025 (NSW) [2025-440]
Queensland	Schedule 13 Placard requirements	Work Health and Safety Regulation 2011 (Qld) (SL 2011 No. 240)
South Australia	Schedule 13 Placard requirements	Work Health and Safety Regulations 2012 (SA)
Tasmania	Schedule 13 Placard requirements	Work Health and Safety Regulations 2022 (Tas) (SR 2022 No. 109)
Australian Capital Territory	Schedule 13 Placard requirements	Work Health and Safety Regulation 2011 (ACT) (SL2011-36)
Northern Territory	Schedule 13 Placard requirements	Work Health and Safety (National Uniform Legislation) Regulations 2011 (NT)
Victoria	Schedule 4 Placarding requirements	Dangerous Goods (Storage and Handling) Regulations 2022 (Vic) (S.R. No. 115/2022)
Western Australia	Schedule 4	Dangerous Goods Safety (Storage and Handling of Non-explosives) Regulations 2007 (WA)

Class 3 placard Class 8 placard Class 2.1 placard Bulk storage sign

Common questions

What size does a dangerous goods placard have to be?

The law sets the size of what is printed, not the panel. On a packaged store placard each class label needs sides of at least 100 mm. Bulk placards and the HAZCHEM sign need letters at least 100 mm high.

How big does the class label on a bulk placard have to be?

Under the WHS regulations, sides of at least 250 mm, or at least 200 mm when a subsidiary hazard label is also shown, with that label at least 150 mm.

How is a class label measured?

Along one edge of the diamond, not from corner to corner.

Figures on this page were checked against the linked sources on 2026-09-29.

General information, not advice for your site. The figures on this page are quoted from the government sources linked beside them and were checked on the date shown. What applies to you depends on what you store, how much, and which state you are in, and the law changes. Check the source, or ask your regulator.

Not on this list? If the class or the wording you want is not here, tell us on Custom Signs - your own text, your own size - and we will come back with a price.