Which transportation protective service provided by a commercial carrier qualified by the Surface Deployment and Distribution Command is used to transport Confidential shipments and requires constant surveillance, with a signature and tally record maintained by the carrier?

• A. Constant Surveillance Service (CSS)
• B. Continuous Surveillance Service
• C. Carrier Surveillance
• D. Security Escort Service

Answer: (A)

This item tests how confidential shipments are protected during transport and who maintains the custody records. The service that matches the requirement of constant, around-the-clock monitoring by a Surface Deployment and Distribution Command–qualified commercial carrier is Constant Surveillance Service. It is defined by providing continuous surveillance of the shipment, with a signature and tally record kept by the carrier to document custody at all times. This formal record-keeping ensures an unbroken chain of custody, which is essential for confidential shipments.

The other options don’t align with both the continuous surveillance and the mandatory signature/tally record. Security Escort Service involves escorted movement by personnel rather than continuous monitoring with a formal custody log. Carrier Surveillance and the variant terms are not the official designation used to describe this level of continuous security and accountability.