In order to qualify as an exceptional occurrence, an event must be (i) unforeseeable or difficult to foresee; (ii) of significant scale/economic impact; and (iii) extraordinary, i.e. differ sharply from the conditions under which the market normally operates.
Biex jikkwalifika bħala okkorrenza eċċezzjonali, avveniment irid (i) ikun imprevedibbli jew diffiċli li jiġi previst; (ii) ta' skala jew b'impatt ekonomiku sinifikanti; u (iii) straordinarju, jiġifieri jkun differenti ħafna mill-kundizzjonijiet li bihom is-soltu jopera s-suq.