The transport index is determined by multiplying the maximum radiation level in millisieverts (mSv) per hour at 1 m (3.3 ft) from the external surface of the package by 100 (equivalent to the maximum radiation level in millirem per hour at 1 m (3.3 ft))."
What is a transport index?
Per 49 CFR 173.403, the transport index is defined as follows: "Transport index (TI)means the dimensionless number (rounded up to the next tenth) placed on the label of a package, to designate the degree of control to be exercised by the carrier during transportation.
What does the number in the transport index box mean?
For the majority of shipments, the number in the transport index box indicates the maximum radiation level measured (in mrem/hr) at one meter from the surface of the package.
