When an invitation to bid is issued, your firm would be contacted electronically. Prospective vendors are also welcome to visit our procurement department.Submission and Receipt of Bids: a). Learn about current bid and contract opportunities available to consultants, service providers, contractors, vendors, or suppliers. Offerors must submit their proposal in the format below. Written proposals will be evaluated on only what is submitted. Solicitations and Contracts. Bidders shall submit their proposal executed on the Bid Form in strict accordance with the Bidding.