The Navy has moved to reclassify 19 planned submarines under a new designationThe change separates VPM-equipped platforms from traditional fast attack submarinesVice Adm. Rob Gaucher will keynote the 2026 Navy Summit on Aug. 27The Department of the Navy has announced its decision to reclassify 19 planned Virginia-class submarines equipped with the Virginia Payload Module, or VPM, as guided missile submarines, or SSGNs, distinguishing the platforms from traditional Virginia-class fast attack submarines, or SSNs. The Virginia Payload Module is a hull modification that lengthens the submarine and expands its munitions capacity and payload flexibility. The next generation of Virginia-class SSGNs builds on that legacy with greater survivability, adaptability, and sustained combat power,” Caudle said. What Are Virginia-Class Submarines?