8. An operator of a container or wagon shall not cause nor permit to be carried in it any explosives—
(a)to which the 1991 Regulations apply, unless he has taken all reasonable steps to ensure that those explosives have been classified and labelled in accordance with those Regulations;
(b)to which the 1993 Regulations apply, unless he has taken all reasonable steps to ensure that those explosives have been packaged in accordance with those Regulations.