A safety management system that satisfies the requirements of the ISM Code is a system of prevention designed to prevent pollution and improve safety. The safety management system shall include the following functional requirements, please find out the non applicable function（）.

• A、A safety and environmental protection policy;
• B、Instructions and procedures to ensure safety operation of ships and protection of the environment in compliance with relevant international and flag state legislation
• C、Provide a guarantee that there will never be another accident or technical defect
• D、Defined levels of authority and lines of communication between and amongst, shore and shipboard personnel