- Wind-assisted propulsion standards formalised with WAPS and WAPS*.
- EASE notation launched for ergonomic and human-centric design.
- Updates to RIGGING notations for wind-powered vessels.
Lloyd’s Register (LR) has rolled out some exciting updates to its Rules and Regulations for the Classification of Ships, introducing fresh notations for wind propulsion systems and ergonomic design. These changes will be integrated into the Rules starting January 1, 2026, and were detailed in Notice No. 5 of LR’s July 2025 rule sets. The update features two new notations for wind-assisted propulsion systems (WAPS and WAPS*) and the EASE notation, which focuses on ergonomic access and human-centric design. Plus, the existing RIGGING notation has received a makeover, reports LR.
Wind-Assisted Propulsion Standards
The WAPS and WAPS* notations, available upon request from owners, cater to systems like soft and rigid wingsails, Flettner rotors, suction wings, and kites. These notations facilitate the classification of both retrofitted and hybrid installations, even those that weren’t originally classified by LR. By offering a structured approach to evaluating safety and system integrity, these notations aim to bolster investment decisions and operational confidence across various vessel types.
EASE Notation for Crew Welfare
In addition to the wind propulsion rules, LR has introduced the EASE notation, which sets the bar for ergonomic access and human-centric design. This notation allows shipowners to demonstrate their commitment to crew welfare by ensuring certified layouts that improve safety and usability in critical areas like bridges and machinery spaces.
Updates to RIGGING Notation
The updated RIGGING and RIGGING* notations apply to ships that rely solely on wind for propulsion. This includes aft-rigged vessels, DynaRig, AeroRig, and traditional square-rigged ships. The revisions establish classification requirements to ensure these technologies adhere to stringent safety and performance standards. This notation is especially important for new builds designed with wind as their primary energy source, providing a clear pathway for classification and compliance.
Industry Perspective
Dr Yikun Wang, Senior Structures Specialist, Rule Development, Lloyd’s Register, said:
“These updates are a direct response to the industry’s need for clarity and confidence when investing in emerging technologies. By codifying standards for wind propulsion and ergonomics, we’re helping shipowners future-proof their fleets while supporting decarbonisation and safety goals.”
Tom Wolodarsky, Senior Surveyor and Lead Specialist WASP, Marine & Offshore, North Europe, LR, added: “The new rules and notices set out technical requirements to support shipowners, designers and regulators in implementing wind propulsion and human-centric solutions. By introducing these standards and guidance notes, LR aims to continue to facilitate the maritime industry in adopting new sustainable technologies safely and effectively.”
Preparing for Future Regulation
The rule updates also feature a forward-looking Statement of Future Requirements, which outlines expected changes from the International Association of Classification Societies (IACS) and the International Maritime Organisation (IMO).
This provides regulatory certainty for designers and operators as they plan future compliance and innovation. LR will publish further details, including requirements related to IACS UR M85 and M86, once available.
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Source: LR
