What specific notation is required on removable electronic storage media?

Removable electronic storage media must be marked with the highest level of classification and control markings because this ensures that the security of the classified information contained within is maintained. The markings indicate the sensitivity of the information and provide essential guidelines regarding how the media should be handled, transported, and stored. This practice helps prevent inadvertent disclosure or mishandling of sensitive data, which is crucial in maintaining national security and protecting classified information. Appropriate markings also facilitate chain-of-custody tracking and ensure that anyone who accesses the media understands the level of protection required.