For inquiries about requests for bids and proposals for contractor and consultant services, call 412-350-5914. Resources. § 223-21 Search capabilities.Proposers should limit their Technical Proposals to twenty (20) typewritten pages. Click here for more information. The Contractor shall follow the requested format for the submission of each proposal as enumerated in the. RFQ. Each contractor must: o Complete the attached Business Registration Form and submit to the Business Tax Office prior to the commencement of work.