End user certificate
In international arms sales, an End User Certificate is a document that certifies the ultimate recipient of the goods being sold, and attests to compliance with all relevant international arms control agreements, as well as compliance with national policies of the sending and receiving nations, as well as any intermediate countries involved in the shipment.
Additional certifications, possibly to third parties such as the International Atomic Energy Agency, may be required when dealing with technologies with, for example, potential as weapons of mass destruction (WMD) or long-range (i.e., falling under the Missile Technology Control Regime (MCTR)) guided missiles.
The United States Department of State, in consultation with the United States Department of Defense, Department of Commerce, and the United States intelligence community controls of the permanent and temporary export and temporary import of defense articles and services is governed primarily by 22 U.S.C. 2778 of the Arms Export Control Act (AECA) and Executive Order 11958, as amended. The AECA, among these other requirements and authorities, provides for the promulgation of implementing regulations, the International Traffic in Arms Regulations. 
- Stockholm International Peace Research Institute, Aspects of national export control systems of EU Member States: Transshipment, Re-export and End-user Statements
- Directorate of Defense Trade Controls (DDTC) (2 January 2008), International Traffic in Arms Regulations (ITAR), United States Department of State