This is a Request for Proposal (RFP) to establish a 5-year Indefinite Delivery/Indefinite Quantity (IDIQ) contract for Large Scale Non-Intrusive Inspection Relocatable Passenger Vehicle Scanning Systems. The period of performance is 5 years with five separate 1-year ordering periods. Proposals must include separate volumes for Technical and Management Approach, Past Performance, and Price, with specific formatting and submission requirements. Questions must be submitted by a specified deadline, and proposals must be received by a specified deadline via email. The acquisition is not set aside for small business.