Mandatory Sign - Forklift Sound Horn

You're correct! AS 1319 is an Australian Standard that outlines the requirements for safety signs, including mandatory signs. These signs are designed to convey specific actions that must be taken for safety or regulatory compliance.

The key characteristics of mandatory signs according to AS 1319 are:

1. Color and Shape: Mandatory signs feature a white symbol or pictogram within a blue circular background. This design is easily recognizable and communicates urgency.
2. Message: The signs typically include the word "MUST" to clearly indicate that the instruction is not optional. For example, "MUST WEAR SAFETY HELMET" would be a common mandatory sign in construction areas.
3. Clarity and Visibility: The signs should be positioned where they are easily visible to ensure that everyone can see and understand the instructions without confusion.