This report, part of a series of publications on nuclear waste policy at the Center on Global Energy Policy, Columbia University SIPA, explores the history of DOE, Nuclear Regulatory Commission (NRC), and state efforts to develop disposal capabilities for GTCC and GTCC-like inventories. It explains why this gap merits greater attention from policymakers now and identifies measures Congress, the DOE, and the NRC could take, should they decide to address it.