Hafnia has launched a pilot project with DNV to measure and manage Underwater Radiated Noise (URN) from its vessels, the company said in a statement.
The project marks the first installation of a permanent system directly linking a ship’s underwater noise profile with onboard measurements, completed on the Hafnia Excel.
The initiative involves two vessels, the Hafnia Excel and the Hafnia Osprey, both equipped with monitoring systems during drydocking.
The systems will collect continuous data on underwater noise and its relation to ship operations, complemented by external hydrophone measurements for reference.
Hafnia and DNV aim to use the data to develop a Noise Management Plan for Hafnia’s vessel types, guiding future compliance and noise-reduction measures.
The project seeks to generate insights that will support regulatory readiness and inform ship design and operational decisions.
“At Hafnia, we believe sustainability means addressing even the less visible impacts of shipping. Underwater noise is an often-overlooked challenge that affects marine life, and this project with DNV helps us take an important step toward protecting the oceans we depend on,” said Ralph Juhl, EVP, Technical Director at Hafnia.
“This pilot represents a technically significant step toward quantifying and verifying reducing underwater noise emissions across the global fleet. The system introduces a new way of tracking and verifying the impact of noise-reducing measures,” said Øystein Solheim Pettersen, Head of Section for Noise and Vibration in DNV Maritime Advisory.
Hafnia is a global shipping company based in Singapore, operating one of the world’s largest fleets of product and chemical tankers. The company is part of BW Group and provides transportation and logistics services for oil products and chemicals.
DNV (Det Norske Veritas) is an independent classification society and risk management company headquartered in Høvik, Norway. It provides certification, assurance, and technical advisory services to industries including maritime, energy, and renewables.




