Regulation 5 Carriage in bulk in wagons and large containers
No operator of a wagon or large container shall cause or permit to be carried therein any dangerous goods in bulk unless—
(a)
the letter Y appears in column 8 of the Approved Carriage List in relation to those goods;
(b)
any requirements specified in Schedule 2 relating to the carriage of those goods in that wagon or container are complied with;
(c)
in the case of a wagon it is—
(i)
closed,
(ii)
open and sheeted, or
(iii)
has a moveable roof; and
(d)
in the case of a large container it is—
(i)
closed, or
(ii)
open and sheeted.