The Portsmouth Naval Shipyard in Kittery, Maine is seeking qualified vendors for comprehensive overhaul services for its barrier boat. This is a sources sought notice for market research to assess contractor interest and capability, not a solicitation. No contract will be awarded from this announcement, and no reimbursement for response costs will be provided. A draft Statement of Work is available for review but is subject to change before the final solicitation. No specific timelines, budget amounts, or performance location beyond the shipyard are mentioned.