N.C. Gen. Stat. § 163-33.3
At the time an individual files with a county board of elections a notice of candidacy pursuant to G.S. 163-106, 163-112, 163-291, or 163-294.2, is certified to a county board of elections by a political party executive committee to fill a nomination vacancy pursuant to G.S. 163-114, qualifies with a county board of elections as an unaffiliated or write-in candidate pursuant to Article 11 of this Chapter, or formally initiates with a county board of elections a candidacy pursuant to any statute or local act, the county board of elections shall notify the candidate of the provisions concerning campaign signs in G.S. 136-32 and G.S. 14-156 and the rules adopted by the Department of Transportation pursuant to G.S. 136-18.
N.C. Gen. Stat. § 163-33.3