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Building the Shipyards the Nation Needs

The Navy's four public shipyards -- Norfolk Naval Shipyard (NNSY), Portsmouth Naval Shipyard (PNSY), Puget Sound Naval Shipyard and Intermediate Maintenance Facility (PSNS&IMF), and Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility (PHNSY&IMF) --  perform a vital role in national defense by executing maintenance on submarines and aircraft carriers in order to provide combat-ready ships to the fleet.

Originally designed and built in the 19th and 20th centuries to build sail- and conventionally-powered ships, the Navy's public shipyards are not efficiently configured to maintain and modernize nuclear-powered aircraft carriers and submarines. With the Navy's needed focus on operations, the aging shipyards have been unable to adequately sustain and optimize their facilities, utilities, dry docks, equipment and information technology infrastructure. These inefficiencies and obsolete facilities result in higher maintenance costs, schedule risks and reliability issues.

To create the shipyards that our nation needs requires making significant investments to modernize dry docks, optimize industrial processes and modernize standard equipment to bring these critical industrial sites to modern standards.

The Navy established the Shipyard Infrastructure Optimization Program (SIOP) program office in May 2018. SIOP is a centrally-managed program led by Naval Sea Systems Command (NAVSEA), with support from Naval Facilities Engineering Command (NAVFAC) and Commander, Navy Installations Command (CNIC). NAVSEA is the operating agent and the technical authority for all four shipyards, executing the capital equipment program while NAVFAC provides facilities engineering and construction programs, supports environmental and compliance requirements and retains head-of-contracting-activity authority for facilities and dry dock investments. CNIC is the Navy's shore integrator and directs the Navy's shore environmental program.

The Navy will ensure that the optimization process fully integrates environmental considerations including natural and cultural resources, water and air quality, and more. During the development of individual shipyard plans, the Navy will develop alternatives for assessment under the National Environmental Policy Act (NEPA), Endangered Species Act (ESA) and the National Historic Preservation Act (NHPA). The Navy will work with stakeholders as part of the decision-making process and will conduct all appropriate NEPA, natural resource and NHPA analyses; agency and government-to-government consultations and public engagement and obtain all required permits to ensure a proactive approach to environmental protection.


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Navy Shipyards



Shipyard News

Forging the Future: U.S. Trains First Australian Radiological Control Technicians to Support AUKUS Submarine Force
In a milestone for the AUKUS (Australia, United Kingdom, United States) enhanced trilateral security partnership, four Australian civilian maintenance technicians, pictured with Norfolk Naval Shipyard commander Capt. James Mosman, graduated from the U.S. Navy’s Radiological Controls Technician Qualifying School (RCTQS) at the Norfolk Naval Shipyard March 26, 2025. The first group’s successful completion of this specialized training marks a key step in supporting Australia’s acquisition of sovereign conventionally armed, nuclear-powered submarines under AUKUS Pillar I Optimal Pathway.
March 27, 2025 - PORTSMOUTH, Va. – In a milestone for the AUKUS (Australia, United Kingdom, United States) enhanced trilateral security partnership, four Australian civilian maintenance technicians from the Australian government’s submarine...

Event helps showcase shipyard apprentice program to current command employees
Robert Nance, trade instructor, Shop 11, Shipfitters, talks with Jenean Valencia, electroplater helper, Shop 31, Inside Machinist, March 19, 2025, during the Apprentice Program Knowledge Fair at Puget Sound Naval Shipyard & Intermediate Maintenance Facility in Bremerton, Washington. (U.S. Navy photo by Wendy Hallmark)
March 27, 2025 - Since 1901, the Apprentice Program at Puget Sound Naval Shipyard & Intermediate Maintenance Facility has helped provide the shipyard with highly trained professionals ready to contribute to its mission. Back in those early...

New IT vending machine, checkout lockers to ease access to mission-essential electronics
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