The erection of a sign, emblem, marker, or traffic control device in violation of 61-8-203 is a misdemeanor, punishable by a fine of not less than $25 or more than $300.
Mont. Code Ann. § 61-8-712
Penalty for erection of unauthorized sign
En
Official source: Montana Code Annotated (Montana Legislature). Reproduced from public-domain Montana statutes; confirm against the official source for the current text. Not legal advice.