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