After contract award, the contractor shall complete the. Vendor Registration Form accessible through the County Department of Finance.I. Methods of Distribution; Scope of Checklist. There are many ways for a supplier to bring its products or services to market. Participating Counties may seek and obtain in an action in a superior court of Maricopa. The Director shall have the authority to Award and execute all noncapital Group Purchasing. Rows of cotton with mountains in the background in Maricopa County. Filling out this contract requires attention to detail and understanding of the terms.