Updated: 8 December 2025
Please note: The information contained in this chapter sets out good practice that should be considered by event organisers. However, it is industry guidance and does not necessarily cover everything that organisers need to consider for a particular event.
The ability for all those working on the event to communicate effectively is critical but particularly in emergencies. If reliance is to be placed on mobile phones, make sure that there is a sufficient signal available at the venue and that those using them keep them open for receiving calls. It is also important to ensure that everyone has the appropriate contact details of those working on the site. If a hand-held radio system is to be used, it is important to properly brief those using them on their use. Where code words are to be used, always keep them simple and ensure that they are understood. Consideration also needs to be given to communicating with the public attending the event.