The area or areas reserved for recording the periods referred to in point 1 must be so marked that it is possible to distinguish clearly between the various periods of time.
Ní mór an limistéar nó na limistéir a choimeádtar i gcomhair na dtréimhsí dá dtagraítear i bpointe 1 a thaifeadadh a mharcáil chun go mbeifear in ann na tréimhsí éagsúla ama a idirdhealú go soiléir.