Montana Title 30. Trade and Commerce § 30-14-207. Unfair competition in sales

(1) It is unlawful for any business, with the intent to destroy the competition of any regular established dealer of any article of commerce or to prevent the competition of any person who in good faith intends or attempts to become such dealer, to discriminate between different localities in this state by selling or furnishing such article at a lower rate in one locality than in another, after making allowance for difference, if any, in the grade, quality, quantity, and actual cost of transportation from the point of production or manufacture of the article.

(2) This section does not prohibit the meeting in good faith of a competitive rate or prevent a reasonable classification of service by public utilities for the purpose of establishing rates.

(3) The prohibition against locality discrimination includes any scheme of special rebates, collateral contracts, or any device of any nature whereby such discrimination is, in substance or fact, effected in violation of the spirit and intent of this section.

(4) Willfully and knowingly advertising, offering for sale, or selling any commodity at less than the price stipulated in a contract entered into under this section, whether or not the person so advertising, offering for sale, or selling is a party to such contract, is unfair competition, and a person damaged thereby may bring an action.