The Center for Offshore Safety (COS) supports companies involved in oil and natural gas industry operations to develop, implement, and improve their Safety and Environmental Management Systems. The work of COS is based on API RP 75, Safety and Environmental Management System for Offshore Operations and Assets. In addition to delivering tools, good practices, and implementation techniques based on API RP 75, COS also collects and publishes safety performance data from its members annually. This important work continues into its second decade and is the basis for COS in supporting the continual improvement in safety and environmental performance systems in offshore operations. COS coordinates with regulators including the U.S. Coast Guard and the U.S. Bureau of Safety and Environmental Enforcement (BSEE). BSEE regulations require offshore operators to implement SEMS for their operations and have their SEMS audited by an independent accredited auditing firm. The regulation incorporates by reference API RP 75, 3rd Ed. and COS guidance documents.