Lloyd’s Register (LR) has released Navigating Nuclear Energy in Maritime, new guidance providing a roadmap for the safe and responsible use of nuclear technology in commercial shipping and offshore operations.
Developed with Global Nuclear Security Partners (GNSP) and marine insurer NorthStandard, the document outlines the regulatory, technical, operational and financial steps required to integrate nuclear systems such as small modular reactors (SMRs) into maritime assets.
The guidance reviews current gaps in international regulation, referencing the roles of the International Maritime Organization (IMO) and the International Atomic Energy Agency (IAEA), and calls for closer alignment between maritime and nuclear standards. It also addresses safety classification, environmental assessments, and structural integrity.
Operational and financial elements include crew training, emergency response, quality assurance, and insurance considerations, with the document highlighting the need for a predictable liability framework to support commercial adoption.
“Nuclear energy has the potential to transform maritime, providing a scalable and zero-carbon energy source that can accelerate the industry’s energy transition,” said Mark Tipping, LR’s Global Power to X Director.
“However, its adoption requires clarity, collaboration and trust across regulators, operators, insurers and wider society. This guidance offers a comprehensive starting point for stakeholders to navigate the risks and opportunities ahead.”



