The Nuclear Decommissioning Authority (NDA) is a non-departmental public body Department for Business, Energy and Industrial Strategy, formed by the Energy Act 2004.

It came into existence to deliver the decommissioning and clean-up of the UK’s civil nuclear legacy in a safe and cost-effective manner, and where possible to accelerate programmes of work that reduce hazard.

The main objectives of NDA are to:
• Eliminate site hazards and develop waste solutions;
• Ensure the highest standards in safety, security and environmental management;
• Build an effective world class industry;
• Gain full approval and support from stakeholders (employees, contractors, government, local communities and general public); and
• Make best use of assets and maximise value-for-money.

Structure

Responsibility for operating the sites has been restructured into six Site Licence Companies (SLCs). The management of the SLCs is contracted out to different Parent Body Organisations (PBOs), which are owned by private companies.

• Sellafield Ltd comprises Sellafield nuclear chemical facility, Calder Hall and Windscale. It also previously managed the Capenhurst uranium enrichment plant, which is now owned by Urenco.[2] Its PBO was formerly Nuclear Management Partners Ltd, a consortium of URS, Amec Foster Wheeler and Areva. However Sellafield Ltd has been under the direct control of the NDA since April 2016.

• Magnox Ltd manages ten Magnox nuclear power stations and was previously two separate SLCs.[3] It comprises Chapelcross, Hunterston A, Trawsfynydd, Wylfa and Oldbury (previously Magnox North Ltd) and Berkeley, Bradwell, Dungeness A, Hinkley Point A and Sizewell A (previously Magnox South Ltd). Its PBO is Cavendish Fluor Partnership Ltd, a consortium of Babcock International and Fluor.

• Dounreay Site Restoration Ltd comprises the Dounreay site. Its PBO is Cavendish Dounreay Partnership Ltd, a consortium of Babcock International, CH2M HILL and URS.

• Research Sites Restoration Ltd comprises the Harwell and Winfrith facilities. Its PBO is Cavendish Fluor Partnership Ltd, a consortium of Babcock International and Fluor.

• LLW Repository Ltd comprises the Low Level Waste Repository near Drigg in Cumbria. Its PBO is UK Nuclear Waste Management Ltd, a consortium of URS, Studsvik, Areva and Serco.

• Springfields Fuels Ltd comprises the Springfields nuclear fuel production facility near Preston, Lancashire. Its PBO is Westinghouse Electric Company, a subsidiary of Toshiba.