Site Safety Signage Standards: AS 1319 Compliance Breakdown

Key Takeaways

• AS 1319 is a voluntary Australian Standard, but it provides recognised guidance for the design and use of workplace safety signs. Specific legal requirements depend on the relevant jurisdiction and workplace.
• The Standard isn’t automatically law on its own, but it’s referenced throughout WHS Regulations and Codes of Practice as the benchmark for compliant signage.
• AS 1319 does not prescribe one fixed sign size. Viewing distance is an important factor when determining the size of symbols and text.
• Colour isn’t decorative either. Each sign category has a minimum proportion of its safety colour that must appear on the sign face.
• A faded, damaged, obscured or incorrectly positioned sign may no longer meet the Standard’s requirements or effectively communicate its intended message. 

Understanding AS 1319 safety sign standards is essential when selecting safety signage for Australian workplaces. AS 1319-1994 sets requirements for sign design, classification, colour, size and placement to ensure safety messages are clear and easy to recognise.

For businesses specifying safety signs, getting these details right helps ensure hazards, instructions and emergency information are communicated effectively.

With decades of experience in safety products and Australian standards, Reflective Fabrications breaks down the practical requirements of AS 1319-1994 and what they mean when choosing workplace safety signs.

What AS 1319 Actually Covers

AS 1319-1994 is the Australian Standard for safety signs used in occupational environments. It defines categories such as: regulatory signs, hazard or warning signs, emergency information signs, and fire signs. Each category has specific shape and colour requirements, so the type of message can be recognised at a glance.

The Standard covers sign classification, colour, sizing for viewing distance, construction, installation and maintenance.

AS 1319 is a voluntary Australian Standard. However, it provides recognised guidance for the design and use of workplace safety signs, and may be relevant where legislation, codes, guidance or workplace procedures call for appropriate safety signage. Specific legal requirements depend on the relevant jurisdiction and workplace.

For an overview of sign types and their workplace applications, see our blog Australian Safety Signs in the Workplace: Types, Meanings, and Compliance. This guide focuses on sizing, colour proportions and placement.

Sign Sizing & the Viewing Distance Principle

AS 1319 does not prescribe one fixed sign size. Symbol and text dimensions must be appropriate for the viewing distance and conditions. The principle is simple: a sign must be large enough to be read, understood and acted on before a person reaches the hazard.

A sign at a doorway may need a much smaller legend than one viewed from across a yard or by a moving vehicle. The standard therefore scales symbol and letter height to the distance from which the sign is intended to be read.

Why Viewing Distance Matters

The same sign design may require different physical sizes depending on where it is installed. A hazard sign in a corridor and the same message on a large-format yard sign are not interchangeable simply because the artwork is identical.

Poor lighting, low contrast, or an obstructed sightline can also affect readability. Sign placement and size need to account for the conditions in which the sign will actually be viewed.

Avoiding Common Sizing Errors

Using the same off-the-shelf sign size across sites with different viewing distances can result in signage that is difficult to read from the required distance.

Specify sign size based on the actual viewing conditions, rather than relying on a default size.

Colour & Layout by Category

Each AS 1319 sign category uses a defined colour and shape combination so the message type is recognisable at a glance. Key examples include:

Colour Proportions Matter

The safety colour must occupy the required proportion of the sign face. Simply using the correct colour and shape is not enough if the design does not maintain the required layout and colour areas. For example, resizing a sign can change the proportion of its safety colour or reduce the visual prominence of the required symbol. The design still needs to follow the standard after resizing.

Common Custom Signage Issues

Custom or modified signs can introduce problems when their dimensions are changed to suit a particular mounting location. Getting the base design right is only part of the job. Colour proportions, symbols, text and overall layout need to remain appropriate when a sign is resized or modified.

Mounting Height & Placement

Placement matters as much as design. AS 1319 considers sightlines, obstructions and the location of the hazard, not just a sign’s colour and size.

Position Signs Before the Hazard

The practical principle is straightforward: a sign needs to be seen and understood early enough for the person viewing it to respond appropriately. Regulatory and hazard signs should be positioned with the hazard and viewing conditions in mind. They should also be mounted where they are:

• Clearly visible within the intended sightline
• Free from obstructions such as foliage, racking, stored materials or equipment
• Positioned where they are unlikely to be struck or damaged by pedestrians or vehicles
• Located appropriately in relation to the hazard or activity they identify

Placement Can Change Over Time

Sign placement is not a set-and-forget decision. A sign that was correctly positioned when a site was established can become obstructed or less effective after racking, walkways, equipment, or stored materials are moved.

Regular site inspections can help ensure signs remain visible, legible, and appropriately positioned as site conditions change.

Mandatory vs Warning Signs: The Practical Distinction

The different shapes and colours allow workers to distinguish an instruction from a hazard warning without relying solely on the wording. This can be particularly useful where signs are viewed quickly, from a distance or in poor conditions.

Keep Your Safety Signage Effective

AS 1319 compliance does not end when a sign is installed. Fading, damage, new equipment, and site changes can affect its visibility, position, and effectiveness over time.

Make signage checks part of your routine site inspections. Check each sign for visibility, position, size, condition, and clear sightlines, and replace or reposition signs when site conditions change.

Need help specifying safety signage for your workplace? Talk to our team about your signage requirements and the right solution for your site.