Radioactive Waste Streams: Waste Classification for Disposal

Radioactive waste is a byproduct of nuclear weapons production, commercial nuclear power generation, and the naval reactor program. Waste byproducts also result from radioisotopes used for scientific, medical, and industrial purposes. The legislative definitions adopted for radioactive wastes, for the most part, refer to the processes that generated the wastes. Thus, waste disposal policies have tended to link the processes to uniquely tailored disposal solutions. Consequently, the origin of the waste, rather than its radiological characteristics, often determines its fate. The Nuclear Regulatory Commission (NRC) and the Environmental Protection Agency (EPA) share regulatory authority for radioactive waste disposal. Radioactive waste classification continues to raise issues for policy makers. Most recently, DOE policy on managing the residue in high-level waste storage tanks proved controversial enough that Congress amended the definition of high-level waste. The disposition of waste with characteristics left undefined by statute can be decided by an NRC administrative ruling. The case for low-activity waste promises to provoke similar controversy. This report will be updated as new radioactive waste classification issues arise. The standards for public exposure to low-level radiation from the repository or cleanup of the weapons facilities have not been reconciled by EPA and NRC. The lower limit on what may be classified as radioactive waste is undefined, and both EPA and NRC jurisdiction overlap on disposal of this waste stream.