N.C. Gen. Stat. § 90-271
It shall be lawful for any physician or surgeon licensed by this State when so requested by any person 18 years of age or over, or less than 18 years of age if legally married, to perform upon such person a surgical interruption of vas deferens or Fallopian tubes, as the case may be, provided a request in writing is made by such person prior to the performance of such surgical operation, and provided, further, that prior to or at the time of such request a full and reasonable medical explanation is given by such physician or surgeon to such person as to the meaning and consequences of such operation; and provided, further, that the surgical interruption of Fallopian tubes is performed in a hospital or ambulatory surgical facility licensed by the Department of Health and Human Services.
N.C. Gen. Stat. § 90-271