Regulation 9 Carriage in tanks
(1)
No operator of a tank shall cause or permit to be carried therein any dangerous goods unless the letter Y appears in column 7 of the Approved Carriage List in relation to those goods.
(2)
No operator of a tank shall cause or permit to be carried therein any dangerous goods if the pressure of that tank exceeds the maximum working pressure stated in the most recent certificate issued in accordance with regulation 11.
(3)
The operator of any vehicle which is being used for the carriage of dangerous goods in a tank shall ensure that specialist advice concerning the goods can be obtained by telephone in English at any time during carriage.