The overarching policy is to Hold the Line and maintain the standard of flood protection in all 3 epochs. To ensure sustainable flood defences, and meet the requirements of environmental legislation, limited Managed Realignment of defences may occur. Detailed studies will identify sites which will be in the order of 60 hectares. Any Managed Realignment of defences will not adversely effect property or known designated and significant historic environment assets. This process will be informed by the Humber Flood Risk Management Strategy.