Design-Build will allow DDC to complete public projects faster and more efficiently. Design-Build emphasizes collaboration, efficiency, and risk reduction.To do business with the City of New York, organizations must create two vendor accounts. Every step of the procurement process is managed on PASSPort. However, regardless of legal requirement, all contract documents should generally bear the seal of a licensed professional. This agreement allows you to create customized terms and conditions for different types of design engagements.