(1) Agreements between wholesale distributors and suppliers must be in writing;. I. Methods of Distribution; Scope of Checklist.There are many ways for a supplier to bring its products or services to market. Washington Distributors are required to submit reports to the Board each month including months with no activity. Spirits Distributors submit form. An exclusive distribution agreement is a legally binding contract between a supplier and a distributor. The starting point should be the distribution agreement. (hereinafter referred to as the "Territory"). Browse 29 Washington Wholesale and Distribution businesses available for sale on BizBuySell.