Org on, or before, the deadline for proposal. All Prospective Vendors submitting a proposal must be listed on the.Whether you are a new vendor with RCTC or an existing vendor, you must register your firm in order to receive contracting notifications. Discover what a bid proposal is, the elements of a bid proposal, how to create one and a template and example that can guide you. The contract is to be a consortium-level contract and Riverside Health Systems will sign the contract for all locations. 8.