Wyo. Stat. § 11-35-111
For the purpose of providing funds to defray the necessary expenses incurred in the administration of this act, the board shall prepare a budget covering the costs, including advertising and sales promotion when they are requested in any marketing agreement or order. The budget shall be approved by the control committee. The budget with the collection of necessary fees, the time and conditions of payment and in no case to exceed five percent (5%) of the gross dollar volume of sales or dollar volume of purchase or amounts handled, shall become a part of any marketing order upon adoption. Every person engaged in the production, processing, distribution or handling of any marketable agricultural product directly affected by any marketing order for the commodity shall pay to the board at the time and in the manner prescribed by the order as assessment for the budget the percentage of the gross dollar volume of sales or dollar volume of purchase or amounts handled, or distribution of any commodity affected by the marketing order, as necessary to defray the expenses of the enforcement of this act, but in no case to exceed five percent (5%) of the gross dollar volume.
W.S. 11-35-111