(1) In this rule "vacation" means a period declared by the Chief Justice to be a vacation of the Court.
(2) A hearing or trial shall not be held in vacation unless the Chief Justice otherwise directs.
(3) Nothing in this rule prevents:
(a) the Court or a Judge from sitting during vacation to dispose of urgent business; or
(b) the Chief Justice from appointing a Judge from time to time to be available to deal with urgent business arising during vacation.