What is a primary responsibility of Original Classification Authorities?

The primary responsibility of Original Classification Authorities (OCAs) is to ensure proper marking of information. OCAs have the authority to classify information based on its sensitivity and the potential impact on national security. Proper marking is essential because it provides clear guidance on how information should be handled, including how it can be stored, transmitted, and disclosed. This marking helps personnel understand the level of sensitivity associated with the information and the requirements surrounding its protection. By ensuring that information is marked accurately, OCAs help prevent unauthorized access and potential breaches of security, thus maintaining the integrity of classified materials.