Wyo. Stat. § 33-20-208: Exceptions.

The provisions of this chapter shall not apply to sales made to dealers by commercial travelers selling in the usual course of business, or to sheriffs, constables, bona fide assignees, receivers or trustees in bankruptcy, or other public officers selling goods, wares and merchandise according to law, nor to any person selling fruits, vegetables, dressed meats, fowls or farm products, by a bona fide resident of the state.