Provision had to be made for government to continue to govern the country and communicate with the outside world after a nuclear attack, should anyone have actually survived outside. For that reason, the bunker had numerous communication rooms equipped with telephones and teleprinters which could send out typed messages, and office areas where heads of government departments could continue working.

This included for example the Ministry of Agriculture and Fisheries, Department of Health, the Foreign Office and Home Office. A special room was set aside for the Prime Minister to continue his or her daily work of running the country. One room housed broadcasting equipment, so the Prime Minister could broadcast important messages to the nation.

The bunker could also communicate with other secret bunkers and mini stations. Special equipment was able to monitor radiation levels outside and provide scientific information about when it was safe for occupants to leave the bunker without the risk of radiation poisoning.