What must a courier have when transporting classified information?

The correct response centers on the necessity of having specific documentation to ensure the secure and authorized transport of classified information. A DD Form 2501 is an essential document used in the transportation of classified materials, as it serves as a shipping receipt and provides a record that the classified information is being moved legally and securely. This form includes details about the classification level and handling instructions, which are critical for maintaining the integrity and security of the information throughout the transportation process.

While other documents like a passport or a security clearance badge may be relevant in different contexts related to the security of personnel or travel, they do not specifically pertain to the protocols for transporting classified materials. A licensing certificate is also unrelated to the processes involved in handling classified information. Understanding the importance of proper documentation helps ensure compliance with security protocols and protects sensitive data during transit.