We make sure our Clients are prepared to deal with emergencies, should they arise. We developed the RESEP process based on our D2O process, that identifies and assesses the effectiveness of the engineered safety systems, resources and command & control arrangements required to mitigate the consequences arising from a severe accident.

The process was developed to assess the accident response capability of high hazard and high consequence plants, and formed part of the UK 'Stress Test' response to the European Nuclear Regulators following the events at Fukushima.

The outcome of the process assessment will either confirm that adequate arrangements are in place and/or suggests improvements to enhance the ability of individual facilities and sites as a whole, to withstand low probability, high consequence accident scenarios.

The process was developed to be a structured, deterministic, and consistent approach to applying the stress tests. It is a staged assessment, and includes the following:

• Progression of events from individual facilities and processes to the whole site, including domino effects.


• Searching for 'cliff edge' effects and development of timelines for critical mitigating response actions.


• Assessment of infrastructure requirements both on and off-site.

An essential part of the process is to identify the Critical Safety Function (CSF) for each facility, to promote a focus on sustaining this CSF. Existing emergency arrangements are assessed to identify the logistics required to implement and then sustain each of the backup systems.