(1) On the application of a proprietor of land, and subject to the agreement of all persons affected thereby, the Registrar may order alteration of the Registry Map, but no such alteration shall be effected except on the instructions of the Registrar in writing in the prescribed form, to be known as a mutation form and the mutation form shall be filed.
(2) Whenever the boundary of a parcel is altered on the Registry Map, the parcel number shall be cancelled and the parcel shall be given a new number.