Bids must be submitted in a sealed envelope, with the name of the Bidder and "Bid for. You will need to register online with BidNet Direct in order to participate in future bid opportunities from the County - simply register online.All items bid must be new. Section 1 - Instructions to Bidders. 1. Contract Documents. 2. All proposals must be submitted on the. By filling out and submitting this form, you agree to be publicly listed on the bid site with your contact information as a planholder for all projects.