country flag of United States

United States

Theft Ranking
Has Weapons-Usable Nuclear Materials


The United States is one of the most improved states in the theft ranking, with its score increasing by 3 points from 2014, and ranks 10th. The United States improved due to ratifying the 2005 Amendment to the Convention on the Physical Protection of Nuclear Materials and the International Convention for the Suppression of Acts of Nuclear Terrorism. In the future, the United States could improve its nuclear materials security conditions by requiring more frequent personnel vetting. The United States’ nuclear materials security conditions remain adversely affected by its high 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.