The revised and expanded Rules for Materials and Components of Germanischer Lloyd are now available. The Rules define the properties of various metallic materials and lay down the requirements for the production processes and the manufacturers. The prerequisites and conditions for the corresponding approvals are also stipulated. For the manufacturers and suppliers of materials and components intended for use on GL-classed ships, the Rules of Germanischer Lloyd form an essential prerequisite. The new edition has been updated to reflect current technical standards and new codes, with improvements in the cross-references. The new rules are available now on the Internet at www.gl-group.com > Client Support > Rules & Guidelines > II Materials and Welding Part 1 Metallic Materials.