Article 6 2

(a)

the radioactive waste or the spent fuel to which it relates essentially has the same physical, chemical and radioactive characteristics; and

(b)

the shipments are to be made from the same holder to the same consignee and involve the same competent authorities, and

(c)

where shipments involve transit through third countries, such transit is via the same frontier post of entry to and/or exit from the Community and via the same frontier post(s) of the third country or countries concerned, unless otherwise agreed between the competent authorities concerned.