Stakeholders including neighbouring businesses and members of the public expected to be within the threat zones as outlined in consequence modelling data will be notified by the emergency services (generally the police) and advised on any necessary safety measures people should take. Aica also use a text message broadcast system that can broadcast information to those who wish to have their phone numbers in the system.
The responding emergency services may decide to issue widespread public warnings via the media, including radio stations and television channels. As well as using radio or television for communication, notification by door-to-door visiting may also be required; the responding emergency services will usually do this.