Bureau Veritas Marine & Offshore (BV) has granted Approval in Principle (AIP) certificates to two ammonia-fuelled vessel designs developed by CIMC Ocean Engineering Design & Research Institute (ORIC) and Zhoushan Changhong International Shipyard.
The approved designs cover an ammonia dual-fuel 159,000-dwt crude oil tanker and a 21,700-TEU ultra-large container ship, aimed at supporting long-term decarbonisation in deep-sea shipping.
The tanker design is based on a Suezmax platform and features an ammonia-fuelled main engine, wind-assisted propulsion and two large Type C ammonia fuel tanks arranged on deck. BV said the fuel system has been developed in line with the IGF Code and relevant classification requirements.
The container ship design focuses on zero-carbon fuel readiness, improved energy efficiency and route flexibility, combining advanced propulsion systems with an optimised hull and layout.
BV also completed three-dimensional classification approval for the container ship design, which the company said supports the development of new digital classification approaches for ultra-large vessels.
The class society said the AIP certifications strengthen cooperation with ORIC and Changhong International in advancing ammonia-fuelled ship designs and supporting the industry’s transition to low- and zero-carbon shipping.





