Throughout and past the construction there was a disagreement between Southern Follo Fire Department and the Public Roads Administration regarding the installation of camera surveillance for fire protection. The former stated that the installation would be required in relation to national regulations, while the latter stated that the fire chief lacked technical qualifications to assess fire protection in tunnels. The installation would cost between NOK 3 and 10 million. The issue was resolved by the Directorate of Public Roads in December 1999, in favor of not installing surveillance. On the other hand, the tunnel was the first to receive a system which automatically detects vehicles carrying hazardous materials and can inform the fire departments of all of them should an incident occur. It can also keep track of the numbers of vehicles in the tunnel at any given time.