This is an advance notice for a task order providing engineering and technical services for the Naval Undersea Warfare Center Division, Newport. The estimated level of effort is 332,640 hours, with a potential performance period of up to five years, including a base year and four option years. The estimated budget is not to exceed five years, with an estimated award date of 1 April 2027. The work requires a facility clearance of Top Secret SCI and safeguarding at the Secret level. This is a follow-on task order to be awarded on a best-value tradeoff basis.