Construction Services for tasks indicated in the Scope of Services section of this RFP; c. DDC uses open Requests for Proposals (RFP) for most of our design and construction management contracts.RFPs are open to all interested firms. To learn more or request a proposal for your property, call us today at 212.634. 8999 or fill out the form below and we will contact you shortly. To post a Proposal or Bid Notice, sign in or register your organization and follow the step-by-step submission process. The Program Management Plan must include the services described below. Other services may also be included in a Management Plan. All solicitations will be released using New York City's digital Procurement and Sourcing Solutions Portal (PASSPort).