How do I bid on a City of Dallas contract? For information on the bidding process, please contact the City of Dallas Procurement Services at: .City of Dallas, TX , TX is looking to buy goods and services. Discover all bid opportunities, RFPs, and government contracts with City of Dallas, TX. For additional information, you may contact the Dallas College Procurement Department at . If you are looking to work with DHA and are responding to an Invitation to Bid, Request for Proposal, or Request for Qualifications, you're in the right place. The City will open proposals during the bid reading. Proposer names will be publicly read at the bid reading which take place at p.m. Electronic Submission. Proposers shall fill out the following required documents, as noted in the bid proposal.