Technical Authority Nuclear - Marine and Offshore, Technical Directorate, Lloyd’s Register

Jez Sims

Jez is a leading Nuclear Assurance expert shaping the regulatory future of maritime nuclear power, with a proven track record in the supervision, operation, commissioning, and modification of complex nuclear facilities.

His deep technical experience made him a pivotal figure in initiating the IMO’s revision of SOLAS Chapter 8, having co-produced the foundational gap analysis for the World Nuclear Transport Institute.

His industry leadership continues in his role as Chair of the IACS Nuclear project team, where he is instrumental in defining how Classification can support the safe integration of nuclear technology into the maritime sector.

Jez leverages this unique blend of operational expertise and strategic influence to guide Lloyd’s Register’s clients through demanding regulatory landscapes. An adept communicator, he excels at fostering collaboration between regulators and industry partners to ensure strategic goals are met with the highest standards of safety and compliance.