An estate cannot be registered until any caution has been appropriately dealt with. If someone attempts to register the estate, HM Land Registry (HMLR) will notify the cautioner and inform them of their right to object to the application. The cautioner may then raise an objection within the prescribed period. This is set out in the Land Registration Rules 2003, SI 2003/1417, r 53 and generally ends at 12 noon on the 15th business day after the date of issue of the Registrar’s notice unless otherwise agreed. However, the cautioner can submit a request to the Registrar, setting out why a longer period should be allowed. The request must be made before 12 noon on the 15th business day after the date of issue of the Registrar's notice. If no objection