N.C. Gen. Stat. § 14-11
It shall be unlawful for any person, by word of mouth or writing, willfully and deliberately to advocate, advise or teach a doctrine that the government of the United States, the State of North Carolina or any political subdivision thereof shall be overthrown or overturned by force or violence or by any other unlawful means. It shall be unlawful for any public building in the State, owned by the State of North Carolina, any political subdivision thereof, or by any department or agency of the State or any institution supported in whole or in part by State funds, to be used by any person for the purpose of advocating, advising or teaching a doctrine that the government of the United States, the State of North Carolina or any political subdivision thereof should be overthrown by force, violence or any other unlawful means.
N.C. Gen. Stat. § 14-11