The U.S. government thinks so — at least enough to formally explore it. In May 2026, the U.S. Department of Transportation’s Maritime Administration (MARAD) launched an initiative to develop small modular reactors (SMRs) for commercial cargo ships, issuing a Request for Information and calling on shipbuilders, nuclear developers, and industry operators to weigh in on how it could actually work. 

Read the full announcement from MARAD here.

Transportation consultant Thomas Witt notes this initiative arrives at a meaningful moment: with fuel costs surging, two major maritime corridors disrupted simultaneously, and global competition already moving on nuclear propulsion, the timing of this push is no accident.

Why the U.S. Is Moving on This Now

The short answer is competition. MARAD stated plainly that global competition is advancing the integration of nuclear propulsion into the broader maritime industry, including shipyards, ports, insurance regimes, and logistics networks, which places the U.S. at a strategic disadvantage in the absence of domestic SMR development. 

Russia already operates the only nuclear-powered commercial freighter in service. China, South Korea, and several European nations are actively developing nuclear maritime propulsion programs. The U.S. has largely sat on the sidelines since the N.S. Savannah — a 1959 experimental vessel that proved technically feasible but commercially unworkable. This RFI marks a deliberate shift from experimental or demonstration projects toward scalable deployment models. 

What SMRs Could Actually Do for Shipping

The practical case for nuclear-powered cargo vessels comes down to four things. MARAD’s initiative targets efficiency gains through high-power energy systems that allow ships to travel farther and faster, affordability by largely eliminating fuel costs and reducing maintenance requirements, national security reinforcement through more resilient domestic supply chains, and scalability across commercial vessels and logistics networks.

A typical commercial ship needs between 10 and 80 megawatts of propulsion power, which is well within the scope of many small reactor designs. Unlike conventional vessels, which require regular refueling stops and are directly exposed to fuel price volatility, a nuclear-powered ship could operate for years between reactor servicing cycles. In a freight environment where fuel surcharges and bunker costs represent a major share of operating expenses, that matters enormously. 

What Still Has to Be Figured Out

MARAD is approaching this realistically. The agency is seeking input on regulatory and statutory revisions, liability and insurance requirements, port access limitations, and workforce development initiatives — all of which are necessary to develop a functioning nuclear commercial shipping market. 

Port acceptance is a genuine challenge. Most commercial ports worldwide have no regulatory framework for receiving nuclear-powered vessels. Insurance and liability structures don’t yet exist at the scale needed for deployment. Workforce credentialing for nuclear-trained maritime engineers is essentially starting from scratch on the commercial side.

MARAD Administrator Stephen Carmel framed the challenge clearly: to successfully introduce SMRs, the effort must be viewed through a system-transition lens rather than just as a technology demonstration — the reactor itself is not the hard part. 

What This Means for the Shipping Industry

Thomas Witt emphasizes that this initiative won’t change shipping operations in the near term — the RFI process, regulatory development, and any eventual vessel construction are measured in years, not months. But the direction it signals matters now.

The Hormuz crisis has exposed just how vulnerable fuel-dependent global shipping is to geopolitical disruption. Nuclear propulsion wouldn’t eliminate that vulnerability entirely, but it would dramatically reduce the exposure of vessel operating costs to oil price shocks. For an industry that has watched fuel surcharges climb to record levels in 2026, that’s a compelling long-term argument.

Industry stakeholders, shipbuilders, and logistics operators who want to shape how this framework develops have until August 5, 2026 to submit comments to MARAD at regulations.gov using docket number MARAD-2026-0729.