N.C. Gen. Stat. § 47-108.14
The United States of America, acting by and through the General Services Administration may convey lands and other property in the State of North Carolina which is transferable by deed, quitclaim deed, or other means of conveyances without the Regional Director or other duly authorized agent acting for and on behalf of the United States of America, adopting or placing a "seal," in any form, after the signature of the grantor's agent, or elsewhere on said deed, quitclaim deed, or other instrument, and the conveyances of the United States of America acting by and through the General Services Administration, and executed by its Regional Director or other duly authorized agent, although without a "seal" appearing thereon, shall be in all respects valid and binding to the same extent as if the word "seal" or some other type of seal, appeared after the signature of the grantor's agent, or elsewhere on said conveyances.
All conveyances prior to April 19, 1955, where any deed, quitclaim deed, or other instrument conveying land or other property in the State of North Carolina has been executed by the United States of America, by and through the General Services Administration, and said conveyances are authorized or required to be registered in the office of the register of deeds of any county in this State, and it appears from said instrument, or said instrument as recorded in the office of the register of deeds of any county in this State, that a seal has been omitted from said instruments, that notwithstanding the absence of a seal all such conveyances are hereby declared to be in all respects valid and binding to convey lands and property rights in the State of North Carolina to the grantees named therein, to the same extent as if the word "seal," or a seal in some other form, had appeared after the signature of the grantor's agent, or elsewhere on said conveyances, and the registration and recording of such conveyances in the office of the register of deeds in all counties in this State are hereby declared to be valid, proper, legal and binding registrations to the same extent as if such conveyances were executed under seal.
N.C. Gen. Stat. § 47-108.14