63. Subject to certain conditions, the Minister may, on his own initiative or at the request of any interested person, suspend the term of the claim,(1) where the validity of the claim is contested, until the notice of withdrawal is received at the office of the registrar or until the date on which the decision becomes executory, whichever event occurs first;
(2) for the period he determines, where the claim holder is prevented from performing the work prescribed by section 72;
(3) until he has rendered a decision on an application for a mining lease, where the application concerns the land that is the subject of the claim.