How do I submit a bid or proposal? All formal bids and proposals shall be submitted as specified in the solicitation document."BID" means an Offer to perform a Contract for work and labor or supplying Commodities at a specified time. 8. Completing the Supplier Registration does not guarantee that a supplier will be notified of potential Request for Proposal (RFP) and Invitation for Bid (IFB). "Bid" means an offer in response to solicitation. Development Services provides the City Council and community with creative guidance and effective implementation of land use development. Agencies are going online where vendors outbid each other to provide goods and services for the lowest possible price. For design-bid-build construction services, bid security must be in the amount of ten percent of the contractor's bid. The report will also identify the size of area treated for the day.