Which document derives legal and national policy for security in DoD international programs?

The Arms Export Control Act is the correct answer because it establishes the legal framework for the control of arms exports and defense services to foreign countries and international organizations. This act is significant in determining the policies related to national security as it outlines the restrictions and requirements for transferring defense articles and services, ensuring that these activities align with U.S. national interests and security objectives.

This legislation plays a crucial role in how the Department of Defense formulates international programs related to defense cooperation and arms sales, as it governs the export of military technologies and resources. By setting forth requirements for export licensing and compliance, the Arms Export Control Act ensures that the U.S. strengthens its alliances while simultaneously protecting its national security interests.

The other options, while also related to defense and security in varying contexts, do not specifically focus on the international control of arms and defense services like the Arms Export Control Act does. The National Defense Authorization Act primarily outlines funding and policy priorities for the Department of Defense. The Defense Production Act relates more to domestic production capacity and priority during national emergencies. The Federal Acquisition Regulation provides guidelines for government procurement processes but does not specifically focus on the legal basis for international security policies.