Regulation 6 Mobile bowsersI1
Northern Ireland
Any mobile bowser used for storing oil shall satisfy the following requirements —
any tap, or valve permanently fixed to the mobile bowser through which oil can be discharged to the open shall be fitted with a lock and locked shut when not in use;
any sight gauge shall be secured to the mobile bowser and be fitted with a valve or tap which shall be locked in the shut position when not in use.
Where oil is delivered through a flexible pipe which is permanently attached to the mobile bowser—
the pipe shall be fitted with a manually operated pump or with a valve at the delivery end which closes automatically when not in use;
the pump or valve shall be provided with a lock and locked shut when not in use; and
the pipe shall be fitted with a lockable valve at the end where it leaves the mobile bowser and shall be locked shut when not in use.