PURPOSE 

This Report is transmitted pursuant to Section 403 of the Arms Control and Disarmament Act, as amended (22 U.S.C. 2593a), which requires a report by the President on Adherence to and Compliance with Arms Control, Nonproliferation, and Disarmament Agreements and Commitments.

SCOPE OF THE REPORT

This Report assesses U.S. compliance with and adherence to arms control, nonproliferation, and disarmament agreements and related commitments in 2018, including Confidence- and SecurityBuilding Measures (CSBMs), as well as the compliance and adherence in 2018 of other nations to arms control, nonproliferation, and disarmament agreements and commitments, including CSBMs and the Missile Technology Control Regime, to which the United States is a participating State. The issues addressed in this Report primarily reflect activities from January 1, 2018, through December 31, 2018, unless otherwise noted.1 The Compliance Report includes reporting and analysis at the levels of classification for which reliable supporting information is available. This unclassified version of the report recounts as much information as possible, but certain issues can be discussed only at higher levels of classification. Some compliance concerns are raised and some findings of violations are made, for instance, only in the TOP SECRET/SCI-level version of this Report. 

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