Adeptus Terra

The Adeptus Terra is one of the greatest feats of bureaucratic administration ever accomplished in the history of the galaxy. Its scribes number in the tens of thousands, connecting a million worlds to its headquarters on Terra. When Yarrick Franz reformed the Senatorum Imperialis, he divided the Adeptus Terra into ten individual adepta, each tasked with maintaining a certain duty.

Adeptus Administratum
The Adeptus Administratum, which is responsible for the administrative functions of the entire Imperial bureaucratic system. It is the largest division of the Adeptus Terra. They are responsible for collecting the Imperial tithe, administrating new territories, and much more. The Adeptus Administratum is represented in the Senatorum by the High Marshall.

Praetorian Guard
The Praetorian Guard is an elite military guard tasked with the protection of the Emperor. They follow their lord's wishes, regardless of what the deed may be. They are not to be confused with the Custodes, whose lives are dedicated solely to the protection of the Great Library of Terra. When one becomes a praetor, they are expected to drop all of their titles as well as their territorial claims. Once indoctrinated, a praetor's sole duty is to protect the Emperor, in addition to executing his grand vision.

Astra Militarum
The Astra Militarum is the adepta responsible for all military matters in the Imperium. They are tasked with waging war in the name of the Holy Mother and to see that the Imperium's vast borders are always defended by a mighty army of soldiers. The fleets of the Sectum Classem Imperitoria—the Imperial Navy—are responsible for taming the stars while the Sectum Exercitum Imperitoria—the Imperial Army—lead countless legions

Adeptus Mechanicus
The Adeptus Mechanicus, which operates as its own political entity as stipulated in the Treaty of Mars. They are responsible for the maintenance of Imperial technology. Based on Mars, the Adeptus Mechanicus are also responsible for the creation of the Imperium's vast fleets of starships as they alone control the forgeworlds of the Imperium. The Adeptus Mechanicus is represented in the Senatorum by the Fabricator-General.

Adeptus Ministorum
The Adeptus Ministorum is the state-sanctioned church of the Imperium. Its members dedicate themselves to the worship of the Mother of Mothers, but they are also responsible in a variety of tasks, such as the publication of new books, interpreting the Laws of Making to maintain their belief in the Empress, and the cultural and religious conversion of new worlds, whether it be human or Xeno. It is often referred to as the Church of the Mother due to their leader's name. Summarily, the Adeptus Ministorum is represented by the Pontifex Maximus.

Imperial Inquisition
The Imperial Inquisition is the 'secret' police of the Imperium responsible for eliminating any potential threats to mankind, internally and externally. They operate semi-independently from the rest of the Imperium as they are not bound to Imperial law, rather, to the Imperial Creed and the Laws of Making. It is represented in the Senatorum by the High Inquisitor. The Imperial Inquisition is thus responsible for the maintenance of the Sectum Assassinorum, a secretive sub-branch of the Inquisition tasked with espionage and assassinations.

Officio Amicitia
The Officio Amicitia is a recent addition to the myriad of adepta in the Adeptus Terra. It concerns itself with external matters. They are the leading representative of the imperium in the field of foreign relations, and this is reflected by the radical system wherein the Ambassador of the New Republic is placed as the defacto leader of this organisation. Nevertheless, their powers are restricted, and while the Ambassador can select an individual to represent the Imperium, these individuals are ultimately subject to follow the Emperor's word.

Imperium Libraricus
The Imperium Libraricus is described as one of the most powerful organisations in the Adeptus Terra, despite its relatively menial task compared to the rest of the Adepta. They are responsible for maintaining the Imperium's countless records. Additionally, the Libraricus is responsible for the production of new pyskers for the Imperium through the Sectum Magicae Telepathica. The Libraricus is represented by the Historian of the Imperium Libraricus.