Specific requirements for the release of solid materials with small or no amounts of radioactivity are not currently contained in 10 CFR Part 20, which constitutes the U.S. Nuclear Regulatory Commissions (NRCs) regulations that set standards for protection of the public against radiation. NRC has approached these matters on a case-by-case basis, in the absence of a national standard for the release of solid materials. Currently, NRC is examining its approach for the control of solid material, including the development of a technical information base for decision-making purposes. As part of this process, NRC has sponsored a National Academy of Sciences (NAS) study to review technical bases, policies, and precedents for controlling the release of solid materials, and to recommend whether NRC should continue its existing approach, establish a national standard by rulemaking, or consider other alternatives. This paper explains the status of NRCs technical basis and the next steps in NRCs decision-making process, as they relate to the NAS study.