America's Maritime Nuclear Future: Building the Ecosystem

The conversation around maritime nuclear energy in the U.S. has become real and meaningful. For the second time in two months in 2026, the U.S. Center for Maritime Innovation within the Maritime Administration has brought together commercial and government stakeholders to chart the course for this emerging economic, energy, and national security opportunity for the nation. 

For years, discussions around maritime nuclear centered primarily on concepts, reactor designs, and technological feasibility. Today, the questions are shifting to whether we can build the broader ecosystem – both in the U.S. and internationally – that is necessary to support commercial deployment of maritime nuclear energy at scale and over the long term.

Several developments suggest that momentum is building. The U.S. Department of Transportation’s Maritime Administration recently released a request for information on commercially viable maritime SMR deployment. Importantly, the effort is focused on the practical requirements for bringing nuclear energy to commercial shipping and establishing the supporting system needed for success. The U.S. Center for Maritime Innovation hosted an Innovation Café in May connecting industry, including emerging U.S. companies, with government partners to discuss maritime nuclear opportunities. The Nuclear Regulatory Commission also convened a well-attended public meeting focused on maritime nuclear regulatory considerations.

And these developments build upon significant, though often quieter, progress. Last year, the U.S. government determined that an advanced reactor, TerraPower’s molten chloride fast reactor, intended for commercial propulsion use would be regulated under Department of Commerce export authorities rather than military-use ITAR provisions, a notable first under the existing regulatory framework. The U.S. also took the lead at the International Maritime Organization in proposing updates to the Code of Safety for Nuclear Merchant Ships, which had remained largely dormant since the early 1980s. The U.S./UK Technology Prosperity Deal, completed in September 2025, included actions to potentially establish a shipping corridor for nuclear-propelled ships between the two nations.