Running number definition
Running number means the identification number allocated to an item of railway rolling stock by a national or regional agency authorising railway rolling stock on admission and visible on the item or, in the absence of such number, the identification number allocated by the keeper for, and visible on, the item;
Running number means the identification number allocated to an item of railway rolling stock by a national or regional agency authorising railway rolling stock on admission or, in the absence of such number, the identification number of the item used in operation;