This unit involves the skills and knowledge required to apply effective safety critical communications and is also considered best practice for general communications in the rail environment. It includes communicating, providing timely and accurate rail operational information and responding to unplanned situations or events appropriately. This unit is intended for rail safety workers who are required to identify and respond to operational information as part of their job role. They may be working within a rail operational or infrastructure environment. Safety critical communications is any communication that, if not delivered or not delivered accurately or promptly, could result in death, serious injury or incur significant damage to property, infrastructure or the environment.