N.C. Gen. Stat. § 43-32
The transfer of any part of a registered estate, either of an undivided interest therein or of a separate lot or parcel thereof, shall be made by an instrument of the transfer or conveyance similar in form to that herein provided for the transfer of the whole of any registered estate, to which shall be attached the certificate of title of such registered estate. In case of the transfer of an undivided interest in a registered estate, such instrument of transfer or conveyance shall accurately specify and describe the extent and amount of the interest transferred and of the interest retained, respectively. In case of a transfer of a separate lot or parcel of a registered estate, such instrument of transfer or conveyance shall describe the lot or parcel transferred either by metes and bounds or by reference to the map or plat attached thereto, and shall in every case be accompanied by a map or plat having clearly indicated thereon the boundaries of the whole of the registered estate and of the lot or parcel to be transferred, but a new survey of the original registered estate shall not be required. The transfer shall be indexed on the grantor and grantee indexes in the same manner as deeds are indexed.
N.C. Gen. Stat. § 43-32