List X site

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A List X site is a commercial site (i.e. non-government) on UK soil that is approved to hold UK government protectively marked information marked as 'Secret' or above, or international partners information classified ‘Confidential’ or above [1] . This changed from 'Confidential and above' with the introduction of the Government Security Classification Scheme [2] . It is applied to a company's specific site (or facility within that site) and not a company as a whole. The term has been used since the 1930s and is equivalent to facility security clearance (FSC) used in other countries.

Commerce relates to "the exchange of goods and services, especially on a large scale". It includes legal, economic, political, social, cultural and technological systems that operate in a country or in international trade.

Classified information in the United Kingdom is a system used to protect information from intentional or inadvertent release to unauthorised readers. The system is organised by the Cabinet Office and is implemented throughout central and local government and critical national infrastructure. The system is also used by private sector bodies that provide services to the public sector.

The Government Security Classifications Policy (GSCP) is a new system for classifying sensitive government data in the United Kingdom.

Locations with this status are those normally involved with defence research and manufacturing that is vital to national security. The complete list of sites is itself classified. The list is administered by Defence Security and Assurance Services (DSAS), part of the Ministry of Defence.

National security defense and maintenance of a state through use of all powers at the states disposal

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Ministry of Defence (United Kingdom) United Kingdom government department responsible for implementing the defence policy

The Ministry of Defence is the British government department responsible for implementing the defence policy set by Her Majesty's Government and is the headquarters of the British Armed Forces.

A similar scheme, List N , is used for sites relating to civil nuclear research or power generation, and is administered by the Office for Nuclear Regulation.

The Office for Nuclear Regulation (ONR) is the safety regulator for the nuclear industry in the United Kingdom. It is an independent statutory corporation whose costs are met by charging fees to the nuclear industry. The ONR reports to the Department for Work and Pensions, although it also works closely with the Department of Energy and Climate Change.

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References

  1. "Security requirements for List X contractors". GOV.UK. Retrieved 29 January 2019.
  2. "Government Security Classifications". GOV.UK. Retrieved 29 July 2018.