This is a sole source procurement for Bolt Beranek and Newman (BBN) services to conduct undersea acoustic data collection, processing, and analysis during a scheduled Government Fleet Exercise. The work requires BBN’s specific hardware, which is already engineered to interface with the Government’s undersea fiber optic cable architecture at the designated exercise location. Introducing another contractor would cause logistical interference, duplicate costs, and unacceptable schedule risks. The required rapid deployment timeline precludes any other vendor from meeting the requirement. The location for performance is the designated exercise location, and no budget amount is specified.