Home Business ADOT Business Coach On Demand Prime Contractor Prime Contractor Prime Contractor This section is designed to lead you through the process of preparing a bid as a prime contractor. It has a number of different areas that address different aspects of the bidding process, including General Requirements Requirements for Contracts with DBE Provisions Requirement for Contracts with On-The-Job Training Provisions Requirements for Preparing the Bid. DBE Suppliers General Requirements Requirements for Contracts with OJT Training Provisions Requirements for Preparing the Bid