According to MANA, The certificate confirms that the design complies with the new DNV GL rules for the classification of ships. The LPG SAFE design is the first 38K LPG carrier design to provide the safety benefit of a double side-hull, while offering the same cargo carrying capacity and the same construction cost as a conventional design.
According to DNV GL, the double side-hull design of LPG SAFE offers a significant increase in protection for these tanks, especially in the event of a collision.