North Carolina General Statutes Chapter 163. Elections and Election Laws § 163-278.18. Normal commercial charges for political advertising

(a) No media and no supplier of materials or services shall charge or require a candidate, treasurer, political party, affiliated party committee, or individual to pay a charge for advertising, materials, space, or services purchased for or in support of or in opposition to any candidate, political committee, or political party that is higher than the normal charge it requires other customers to pay for comparable advertising, materials, space, or services purchased for other purposes.

(b) A newspaper, magazine, or other advertising medium shall not charge any candidate, treasurer, political committee, political party, or individual for any advertising for or in support of or in opposition to any candidate, political committee or political party at a rate higher than the comparable rate charged to other persons for advertising of comparable frequency and volume; and every candidate, treasurer, political party or individual, with respect to political advertising, shall be entitled to the same discounts afforded by the advertising medium to other advertisers under comparable conditions and circumstances.