Transmission classification

Classification is placed on transmissions sent and received by UNSC personnel in order to determine the extent of restriction that is to be placed on the information contained in the transmission. Transmission classifications are governed by several UNSC and UEG protocols and statues, including Article 428-A, JAG 490-0UU, the Official Secrets Act of 2550, ONI Security Directive M-98, ONI Security Protocol 1A, UNSC Military Security Code 447-R27, the UNSC Security Act, and the UNSC Secrets Act of 2504. According to JAG 4465/LHG, the Wartime Articles of Secrecy, the amended Articles of the United Security Acts of 2162, and the amended Articles of the Homeland Security Act of 2162, breach of code-word classification confidentiality is punishable by the death penalty. There are several classifications to transmissions, which include:

List of classification

 * Classification: NA: These transmissions are completely unrestricted. They are available for any person to see them who wishes to.


 * Classification: Restricted (BGX Directive): This classification is used mostly by the UNSC military when officers wish to communicate with one another. The information can have varying degrees of importance, which can also be determined by the transmission's Encryption Code.


 * Classification: Classified (BGX Directive): This classification is also used by military personnel to communicate with one another. More specifically, it is used when one commander wishes to communicate with as many UNSC ships as they can within range while still maintaining a level of secrecy.


 * Classification: SECRET (BGX Directive): This classification is for a higher-level of secrecy. It is designed to be used exclusively when ship captains communicate with one another, or when Admirals wish to communicate with lower ranking ship commanders.


 * Classification: EYES ONLY (RND Directive): This classification is used among UNSC officers to discuss important matters. It maintains some level of confidentiality as the information on the file is intended to be viewed only by the recipient addressed.


 * Classification: EYES ONLY TOP SECRET (SECTION III X-RAY DIRECTIVE): This classification is the highest known level of secrecy. It is used exclusively by members of ONI, section three. No one is supposed to see the information on the file except the sender and the recipient.

List of appearances

 * Halo: The Fall of Reach
 * Halo: Ghosts of Onyx
 * Halo: Evolutions
 * The Impossible Life and the Possible Death of Preston J. Cole