The materials may be carried in bulk provided that:

(a) they are carried in a vessel so that, under normal conditions of transport, there is no escape of contents or loss of shielding;

(b) they are carried under exclusive use if the contamination on the accessible and inaccessible surfaces is greater than 4 Bq/cm² (10EXP(-4) µCi/cm²) for beta and gamma emitters and low toxicity alpha emitters or 0.4 Bq/cm² (10EXP(-5) µCi/cm²) for all other alpha emitters;

(c) measures are taken to ensure that radioactive material is not released into the vessel, if it is suspected that non-fixed contamination exists on inaccessible surfaces of more than 4 Bq/cm² (10EXP(-4) µCi/cm²) for beta and gamma emitters and low toxicity alpha emitters or 0.4 Bq/cm² (10EXP(-5) µCi/cm²) for all other alpha emitters.

Surface contaminated objects group (SCO-II) shall not be carried in bulk.