A person may not, without lawful authority, attempt to or in fact alter, deface, injure, knock down, remove, or interfere with the operation of any official traffic-control device or any railroad sign or signal or any inscription, shield, or insignia thereon, or any other part thereof.
N.D. Cent. Code § 39-10-07.3
Interference with official traffic-control device or railroad sign or signal
Official source: North Dakota Legislative Branch. Reproduced from public-domain North Dakota statutes; confirm against the official source for the current text. Not legal advice.