Bureau Veritas (BV) awarded concept approval to CS1, a new membrane containment system developed by Gaztransport and Technigaz (GTT) for the transportation by sea of Liquefied Natural Gas (LNG). In Paris on January 10, Bernard Anne, managing director of BV's marine division, presented a certificate of approval to GTT chairman Jacques Dhellemes, who said, "BV's marine department has a long-standing involvement with GTT's work on LNG cargo containment systems. The concept approval certificate awarded by BV to our containment system is a result of the well-established co-operation which exists between GTT and BV, working together in partnership. The CS1 containment system benefits from recent significant improvements in methods of calculation.