(1)  At any time before the filing of a certificate of readiness or joint letter of readiness or the making of an order under rule 416 , a party to a proceeding by notice may call on any other party to admit, for the purposes of the proceeding, any fact specified in the notice.

(2)  If a party to whom a notice is given fails to admit any fact specified within 14 days of receiving the notice, or within any further period allowed by the Court or a judge, the costs of proving that fact are to be paid by that party, regardless of the result of the proceeding, unless at the trial or hearing the Court or a judge certifies that the failure to admit was reasonable or otherwise orders.

(3)  An admission under this rule is made only for the purpose of the particular proceeding, and is not to be used against the party on any other occasion or in favour of any person other than the party giving the notice.

(4)  The Court or a judge may at any time allow any party to amend or withdraw any admission made on any terms as are just.