What action must be taken if correspondence carries confidentiality requirements?

The correct action to take when correspondence carries confidentiality requirements is to mark it as CONFIDENTIAL. This practice is essential because marking correspondence as confidential signals the need for special handling and ensures that all parties involved understand the sensitivity of the information contained within the document. By doing so, it helps prevent unauthorized disclosure and emphasizes the importance of maintaining the confidentiality of the information.

While handling it with care is critical, this alone does not communicate the specific confidentiality requirements that must be adhered to. Similarly, keeping a copy or directly submitting it does not address the necessary protocols related to confidentiality and could lead to breaches if those involved do not recognize the sensitive nature of the correspondence. Therefore, marking the document explicitly as CONFIDENTIAL effectively serves as a clear indicator of its status and the precautions needed in managing it.