Mobile bowsersE+W
5.—(1) Any mobile bowser used for storing oil shall satisfy the following requirements.
(2) Any tap or valve permanently fixed to the unit through which oil can be discharged to the open must be fitted with a lock and locked shut when not in use.
(3) Where oil is delivered through a flexible pipe which is permanently attached to the unit—
(a)the pipe must be fitted with a manually operated pump or with a valve at the delivery end which closes automatically when not in use;
(b)the pump or valve must be provided with a lock and locked shut when not in use;
(c)the pipe must be fitted with a lockable valve at the end where it leaves the container and must be locked shut when not in use.