It will be a term of the Adjudicator's appointment that the Adjudicator must be required to make a determination of the issue within 20 Business Days of the Adjudicator's appointment or such further period as the Participants may agree. If any Participant considers that the issue is of an urgent nature and needs to be resolved within a shorter period, then that Participant may require the period of 20 Business Days to be reduced to such period as that Participant may reasonably require, being not less than 5 Business Days.