Paragraph 1
Fissile material shall be packaged and shipped in such a manner that subcriticality is maintained under conditions likely to be encountered during normal and accident conditions of transport. The following contingencies shall be considered:
(a)
Water leaking into or out of packages;
(b)
The loss of efficiency of built-in neutron absorbers or moderators;
(c)
Possible rearrangement of the radioactive contents either within the package or as a result of loss from the package;
(d)
Reduction of spaces between packages or radioactive contents;
(e)
Packages becoming immersed in water or buried in snow; and
(f)
Possible effects of temperature changes.