International classification society Bureau Veritas has extended its classification rules to include the items of drilling equipment which are essential for the safety of offshore drilling operations. These rules cover well control equipment including Blow-Out Preventers, marine risers, tensioning systems, heave-compensation systems, drawworks, mud circulating systems, cementing equipment, drilling derrick and supporting structures. Offshore drilling operators can turn to one body to assess the entire drilling unit and equipment under one integrated approach.