Which marking corresponds to SECRET ATOMAL materials?

The marking that corresponds to SECRET ATOMAL materials is indicated as //NS-A. This marking designates information that requires a higher level of protection due to its sensitivity. ATOMAL materials specifically refer to information regarding atomic energy or nuclear-related content that, if disclosed, could potentially harm national security. Therefore, the use of //NS-A achieves a dual purpose: it signifies the classified nature of the material and provides an additional layer of security by denoting that this information is subject to particular restrictions. Understanding these classifications is crucial for maintaining the integrity and confidentiality of sensitive information, especially in fields related to national defense and security.