* * * In these cases, we have tried to suggest positions that could be used by the responsible agency in formulating a
proposed rule. Other starting positions are possible, and of course the final rule could differ markedly from any of
them.’’ (NAS Report p. 3, emphasis added) Thus, we agree with NAS that the selection of a level for the peak dose
standard is one of the regulatory policy issues left to EPA’s discretion by the EnPA. As stated earlier, we find that the
annual risk associated with the final peak dose standard of 100 mrem/yr is protective of public health and comparable to the domestic and international standards NAS suggested that EPA consider, particularly when considering the extended time frames under consideration for this rulemaking. (NAS Report p. 49 and Tables 2–3 and 2–4)