A notary shall affix the notary’s official seal near the notary’s official signature. The seal may be either circular or rectangular in shape and must include the following: the notary’s name exactly as commissioned the words “Notary Public” the county of commission including the word “County” or “Co.” and the words “North Carolina” or the abbreviation “N.C.”. Commission expiration date is permissible but not required.
Source: N.C. Gen. Stat. § 10B-37