The Naval Undersea Warfare Center Division, Newport (NUWCDIVNPT), USW Platforms and Payload Integration Department (Code 45) has a requirement for engineering and technical services in support of the ... The Naval Undersea Warfare Center Division, Newport (NUWCDIVNPT), USW Platforms and Payload Integration Department (Code 45) has a requirement for engineering and technical services in support of the C45 Laboratory Complex and for the related programs which require the use the C45 Laboratory Complex. This Solicitation is for a task order under the SeaPort-NxG Multiple Award Contract. Only SeaPort-NxG MAC holders may submit a proposal.