True or false: Incineration of radioactive waste is allowed under special approval by the NRC.

The statement is true because the incineration of radioactive waste can indeed be allowed under specific circumstances with special approval from the Nuclear Regulatory Commission (NRC). The NRC regulates the handling, storage, and disposal of radioactive materials to ensure public safety and environmental protection. While incineration is not a common method for managing radioactive waste, it is permissible when it meets certain criteria set forth by the NRC, which includes ensuring that the process protects human health and the environment.

The NRC may grant approval for incineration if the waste meets specific characteristics or if the incineration process adheres to the stringent safety and regulatory requirements. This controlled incineration can be a part of the waste management strategy used for certain types of low-level radioactive waste.

Options indicating limitations such as “only for certain isotopes” or “only after decay” suggest a more restrictive interpretation of the incineration guidelines and do not encompass the full scope of the NRC's regulatory framework, which can accommodate incineration under proper regulatory oversight. Therefore, the correct interpretation of the regulation allows for incineration with special approval, making the initial statement accurate.