What does the term "marking" refer to in the context of classified information?

In the context of classified information, "marking" specifically refers to the process of applying appropriate labels and designations to classified materials. This is crucial because marking ensures that individuals interacting with the documents are aware of the sensitivity of the information contained within and the handling protocols required to maintain its security. Proper marking helps in safeguarding the information from unauthorized access and ensures compliance with relevant laws and regulations regarding classified data. By using specific designations, such as Confidential, Secret, or Top Secret, as well as additional instructions or caveats, personnel can quickly understand the classification level and the implications for sharing or handling the information. Overall, marking is a fundamental aspect of maintaining the integrity and security of classified materials.