Location safety signs must be displayed as directed by the inspecting officer (the station manager or, in the case of retained stations, the risk manager of the station ground in which the site is situated).
The inspecting officer must be satisfied that only signs necessary in order to warn firefighters in an emergency that dangerous substances are present are asked for, and displayed accordingly. The intention of these signs is to give firefighters information of significant hazards within a site.
When necessary and where there is only one dangerous substance or there are two or more dangerous substances with the same classification at any one location, a single sign bearing the correct classification symbol will be displayed together with the hazard warning text.
Where there are two or more dangerous substances with different classifications at any one location a single sign bearing the exclamation mark symbol will be displayed together with the hazard warning text 'dangerous substance'.
All location signs must be displayed in places that will give adequate warning to firefighters before entering any danger area in an emergency.