Final answer:
To share a classified document with Julie, she must have the appropriate security clearance level and a 'need to know'. Secure communication protocols must be adhered to, and the subject line of the communication should be clear and specific.
Step-by-step explanation:
To share a classified document with your coworker Julie, she must meet specific security clearance requirements. The process to determine her eligibility includes ensuring Julie has the necessary clearance level that corresponds to the document’s classification. Moreover, Julie must have a verified ‘need to know’ for the information contained within the document. This entails that her job duties require access to the classified information to perform her responsibilities effectively.
Additionally, it is pivotal to follow protocol for the transfer of classified information. This means using secure channels for communication and verifying that Julie's clearance has been confirmed through the proper channels before any sharing takes place. Make sure you have a clear subject line for your communication to Julie that delineates the contents or the topic so that she, and any responsible security personnel, can easily refer back to it at a later date if necessary.