The final report of the Commission’s Resilience Study recommends that government set clear, proportionate and realistic standards every five years for the resilience of energy, water, digital, road and rail services. In setting these resilience standards, government will need to determine the right balance between the costs of resilience, impacts of disruption and consumer expectations to determine the ‘level of service’ to aim for across infrastructure sectors.

This technical annex sets out five key principles to follow when setting levels of service across economic infrastructure. These principles provide a starting point for better and more consistent decision-making on levels of service across economic infrastructure.