N.D. Admin. Code § 37-05-02-04
37-05-02-04. Blank signs.
If any sign remains blank for over one year, it is abandoned and must be removed as unlawful advertising pursuant to North Dakota Century Code section 24-17-11. A blank sign is a sign structure having no panel or face, or whose panel or face is not covered at least twenty-five percent in area by an advertising message.
History: Effective July 1, 1983.
General Authority: NDCC 24-17-10
Law Implemented: NDCC 24-17-09