Excepted packages: extremely low levels of radioactivity with very low hazard.
Industrial packages: low levels of radioactivity with very low hazard; used in certain shipments of low activity material and contaminated objects, which are usually categorized as radioactive waste.
Type A packages: used to transport small quantities of radioactive material with higher concentrations of radioactivity than those shipped in industrial packaging
Type B packages: designed to transport material with the highest levels of radioactivity
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Q
Excepted packages
A
Examples of material typically shipped in excepted packaging include consumer goods such as smoke detectors.
Excepted packagings are excepted (excluded) from specific packaging, labeling, and shipping paper requirements; they are however, required to have the letters “UN” and the appropriate four-digit UN identification number marked on the outside of the package.
UN 2910 means Radioactive material, excepted package-limited quantity of material.
Requirements for excepted packaging are addressed in 49 CFR 173.421.