Class 7 is divided into three different categories, and this class has no
sub-divisions.
Category I White: (0 ≦ T.I. ≦ 0.05)
Hazard Label:
IMP Code: RRW
Category II Yellow: (0.05 < T.I. ≦ 1.0) Hazard Label:
IMP Code: RRY
Category III Yellow: (1.0 < T.I. ≦ 10.0) Hazard Label:
IMP Code: RRY
Note: Each package of fissile Material must, in addition, bear the Criticality
Safety Index (CSI) label adjacent to the radioactive hazard labels.
CSI Label:
