country flag of United Kingdom

United Kingdom

Theft Ranking
Has Weapons-Usable Nuclear Materials


The United Kingdom is tied for 11th in the theft ranking, and increased its score by 2 points from 2014 due to an improved risk environment and new requirements for cybersecurity at nuclear facilities. In the future, the United Kingdom’s nuclear materials security conditions could be further improved by requiring more frequent personnel vetting to mitigate the insider threat. The United Kingdom’s nuclear materials security conditions remain adversely affected by its high and increasing quantities of nuclear materials, and the large number of sites at which those materials are located.

Category & Indicator Scores

Category & Indicators
Rank / Score / Δ

Quantities and Sites

Quantities of Nuclear Materials

Sites and Transportation

Material Production / Elimination Trends

Security and Control Measures

On-site Physical Protection

Control and Accounting Procedures

Insider Threat Prevention

Physical Security During Transport

Response Capabilities


Global Norms

International Legal Commitments

Voluntary Commitments

International Assurances

Domestic Commitments and Capacity

UNSCR 1540 Implementation

Domestic Nuclear Materials Security Legislation

Safeguards Adherence and Compliance

Independent Regulatory Agency

Risk Environment

Political Stability

Effective Governance

Pervasiveness of Corruption

Group(s) Interested in Illicitly Acquiring Materials


= denotes tie in rank
Δ denotes change in score between and
– denotes no change between and
All countries are scored 0–100, where 100 = most favorable nuclear security conditions

Note on Scores

Indicator scores equal the sum of the subindicator scores. Scores are then normalized 0-100, where 100 = most favorable nuclear materials security conditions.