The first level is comparable to civilian radiation safety programs and treats soldiers in a manner similar to that in which occupational workers who are engaged in radiation practices are treated. At the second level, soldiers are engaged in military activities that may or may not be comparable to routine practices and that can resemble emergency response activities. Unlike in the first level, in the second level the military mission may override or curtail radiation safety considerations. The highest level is uniquely military and involves combat in times of nuclear war. At these radiation exposures, lethality or acute effects are expected. This level is beyond the scope of this report and will not be discussed further.
In the next chapter, the committee discusses how the current military programs, when augmented by the proposed guidance, meet the scientific, ethical, and legal requirements discussed previously.