; and (5) identify relevant programs and make recommendations for the coordination of relevant activities of the Federal agencies and set forth the role of each Federal agency in implementing the plan. 104. National drone technology center (a) Establishment Subject to the availability of appropriations for such purpose, the Secretary of Commerce, in collaboration with the Secretary of Defense, may establish a national drone technology center to conduct research and development of unmanned aircraft systems to strengthen the economic competitiveness and security of the domestic supply chain. Such center shall be operated as a public-private sector consortium with participation from the private sector and the National Institute of Standards and Technology. (b) Functions The functions of the center established under subsection (a) shall be to conduct research and development related to unmanned aircraft systems manufacturing, design and components, and prototyping that strengthens the entire domestic ecosystem and places emphasis on the following: (1) Unmanned aircraft systems advanced testing and assembly capability in the domestic ecosystem. (2) Materials characterization, instrumentation and testing for unmanned aircraft systems. (3) Virtualization and automation of maintenance of unmanned aircraft systems machinery. (4) Metrology for security and supply chain verification. 105. GAO study on foreign drones (a) Study The Comptroller General of the United States shall conduct a study on the use of foreign-made unmanned aircraft systems in the Federal Government unmanned aircraft fleet. (b) Elements The study under subsection (a) shall include an assessment of the following: (1) The size of the Federal unmanned aircraft fleet and the extent to which any unmanned aircraft systems and components have been procured from a covered foreign entity on the list maintained in Supplement No. 4 to part 744 of title 15, Code of Federal Regulations. (2) The operation of such systems across the Federal Government. (3) Policies and