This is a request for engineering services to support acoustic signature trials, issued as a task order under the SeaPort Next Generation contract. Only current SeaPort NxG MAC holders are eligible to submit proposals for this Level of Effort, non-performance based requirement. Questions regarding the solicitation must be submitted by March 27, 2026. Proposals must be submitted electronically by April 24, 2026. No budget or specific performance location is detailed in this description.