Which document governs the marking and handling of classified material in Navy training?

The marking and handling of classified material in Navy training is governed by the OPNAVINST 5510.1 Series. This instruction provides guidelines and standards for the protection of classified information within the Navy. It outlines responsibilities, handles classification authorities, and specifies the requirements for marking classified material, ensuring that individuals working with sensitive information are familiar with the correct procedures to prevent unauthorized access and protect national security.

By using the OPNAVINST 5510.1 Series as a governing document, the Navy ensures that all personnel involved in training and operations understand the seriousness of handling classified information and can adhere to the established protocols for safeguarding it. This is essential for maintaining the integrity of national defense and operational readiness.