Tank-wagons, demountable tanks and battery-wagons:
For demountable tanks *), the following requirements apply:

(a) they shall be so fixed on the underframe of the wagon that they cannot move;
(b) they shall not be interconnected by a manifold;
(c) if they can be rolled, the valves shall be provided with protective caps.

*) For the definition of "demountable tank", see 1.2.1.

Tank-containers, tank swap bodies and MEGCs:
(Reserved)