TRANSMISSION AND TRANSPORTATION OF
THE DOD EXAM STUDY GUIDE 2026
◉ GSA. Answer: General Services Administration
◉ NATO. Answer: North Atlantic Treaty Organization
◉ 32 CFR. Answer: 32 Code of Federal Regulations
◉ Government Vehicle. Answer: 1. You may use Government-owned
and Government-contract vehicles, including aircraft, U.S. Naval
ships, civil service-operated U.S. Naval ships, and ships of U.S.
registry, to transmit Secret information.
2. A vehicle operator, ship officer, or aircraft pilot may be designated
as an escort provided he or she is an appropriately cleared U.S.
citizen, and control of the carrier is maintained on a 24-hour basis.
3. Escorts must protect the shipment at all times, through personal
observation or authorized storage to prevent inspection, tampering,
pilferage, or unauthorized access.
,Note: Observation of the shipment is not required during flight or
sea transit, as long as the shipment is loaded into a specialized
secure, safe-like container or a compartment that is not accessible to
unauthorized persons.
◉ Transmission and Transportation - Job Aid. Answer: Job Aid
summarizes the authorized transmission and transportation
methods by classification level for the Department of Defense:
Direct Contact: Top Secret, Secret, and Confidential
Cryptographic Systems: Top Secret, Secret, and Confidential
Defense Courier Service: Top Secret, Secret, and Confidential
DOD Component Courier Service: Top Secret, Secret, and
Confidential
Dept of State Courier Service: Top Secret, Secret, and Confidential
Cleared Designated Courier/Escort: Top Secret, Secret, and
Confidential
USPS Registered Mail: Secret and Confidential
,USPS Priority Mail Express: Secret and Confidential
Canadian Registered Mail: Secret and Confidential
GSA-approved overnight delivery company: Secret and Confidential
Commercial Carrier that provides PSS: Secret and Confidential
Government-owned and Government-Contract Vehicles, Aircraft, &
Ships: Secret and Confidential
Civilian Reserve Air Fleet: Secret and Confidential
USPS Certified Mail: Confidential
USPS First Class Mail: Confidential
U.S. Citizen Commercial Carrier that provides CSS: Confidential
U.S. Citizen Operators of U.S. Registered Ships: Confidential
, Alternative/Additional Methods Approved by Head of DOD
Component: Confidential
◉ Civilian Reserve Air Fleet. Answer: 1. In exceptional
circumstances, with the written approval of the recipient
government security authorities, you may transmit Secret material
outside of the U.S. and its Territories in the hold of a cleared U.S.
registered air carrier without an appropriately cleared escort. These
carriers are participants in the Civilian Reserve Air Fleet.
2. The shipment must be sent between two specified points with no
intermediate stops. The carrier must agree in advance to permit
cleared and specifically authorized persons to observe placement
and removal of the classified shipment from the air carrier.
3. The shipment must be placed in a compartment that is not
accessible to any unauthorized person, or in the same type of
specialized shipping container used by the DCS.
◉ Special Information Types. Answer: There are several types of
special information you need to be aware of. These types of special
information include:
1. Communications Security (COMSEC).
THE DOD EXAM STUDY GUIDE 2026
◉ GSA. Answer: General Services Administration
◉ NATO. Answer: North Atlantic Treaty Organization
◉ 32 CFR. Answer: 32 Code of Federal Regulations
◉ Government Vehicle. Answer: 1. You may use Government-owned
and Government-contract vehicles, including aircraft, U.S. Naval
ships, civil service-operated U.S. Naval ships, and ships of U.S.
registry, to transmit Secret information.
2. A vehicle operator, ship officer, or aircraft pilot may be designated
as an escort provided he or she is an appropriately cleared U.S.
citizen, and control of the carrier is maintained on a 24-hour basis.
3. Escorts must protect the shipment at all times, through personal
observation or authorized storage to prevent inspection, tampering,
pilferage, or unauthorized access.
,Note: Observation of the shipment is not required during flight or
sea transit, as long as the shipment is loaded into a specialized
secure, safe-like container or a compartment that is not accessible to
unauthorized persons.
◉ Transmission and Transportation - Job Aid. Answer: Job Aid
summarizes the authorized transmission and transportation
methods by classification level for the Department of Defense:
Direct Contact: Top Secret, Secret, and Confidential
Cryptographic Systems: Top Secret, Secret, and Confidential
Defense Courier Service: Top Secret, Secret, and Confidential
DOD Component Courier Service: Top Secret, Secret, and
Confidential
Dept of State Courier Service: Top Secret, Secret, and Confidential
Cleared Designated Courier/Escort: Top Secret, Secret, and
Confidential
USPS Registered Mail: Secret and Confidential
,USPS Priority Mail Express: Secret and Confidential
Canadian Registered Mail: Secret and Confidential
GSA-approved overnight delivery company: Secret and Confidential
Commercial Carrier that provides PSS: Secret and Confidential
Government-owned and Government-Contract Vehicles, Aircraft, &
Ships: Secret and Confidential
Civilian Reserve Air Fleet: Secret and Confidential
USPS Certified Mail: Confidential
USPS First Class Mail: Confidential
U.S. Citizen Commercial Carrier that provides CSS: Confidential
U.S. Citizen Operators of U.S. Registered Ships: Confidential
, Alternative/Additional Methods Approved by Head of DOD
Component: Confidential
◉ Civilian Reserve Air Fleet. Answer: 1. In exceptional
circumstances, with the written approval of the recipient
government security authorities, you may transmit Secret material
outside of the U.S. and its Territories in the hold of a cleared U.S.
registered air carrier without an appropriately cleared escort. These
carriers are participants in the Civilian Reserve Air Fleet.
2. The shipment must be sent between two specified points with no
intermediate stops. The carrier must agree in advance to permit
cleared and specifically authorized persons to observe placement
and removal of the classified shipment from the air carrier.
3. The shipment must be placed in a compartment that is not
accessible to any unauthorized person, or in the same type of
specialized shipping container used by the DCS.
◉ Special Information Types. Answer: There are several types of
special information you need to be aware of. These types of special
information include:
1. Communications Security (COMSEC).
