These laws prohibit everything from using a fake trademark to altering a used car's odometer. A person engages in a deceptive trade practice when, in the course of the person's business, vocation, or occupation, the person does any of the following:(c) Violates a state or federal statute or regulation relating to the sale or lease of goods or services. File an online Complaint. A person engages in adeceptive trade practice if, in the course of his business or occupation, he: 1. (e) A deceptive trade practice as defined in NRS 598.0915 to 598.0925, inclusive. 3. These authorizations are indicated in the table below, along with the applicable statute(s). We enforce federal competition and consumer protection laws that prevent anticompetitive, deceptive, and unfair business practices. These authorizations are indicated in the table below, along with the applicable statute(s). Definitions of prohibited acts, if any, normally follow afterward in the state code.