The Office of Science national scientific user facilities provide researchers with the most advanced tools of modern science including accelerators, colliders, supercomputers, light sources and neutron sources, as well as facilities for studying the nanoworld, the environment, and the atmosphere. In Fiscal Year 2014 over 14,000 researchers from academia, industry, and government laboratories, spanning all fifty states and the District of Columbia, utilized these unique facilities to perform new scientific research. Shown below are DOE national user facilities and the NSRCs that are co-located with them. Potential NSRC users are encouraged to submit proposals that take advantage of multiple user facilities, particularly within a single location.