The purpose of this legislation is to create a program within the U.S. Department of State focused on the responsible use of small modular reactor technology for civil nuclear energy. This program, called the Foundational Infrastructure for Responsible Use of Small Modular Reactor Technology (FIRST program), aims to enhance U.S. economic and national security by promoting the deployment of nuclear energy internationally. Key provisions of the FIRST program include several functions managed by the Under Secretary for Arms Control and International Security.