The Chaplain is responsible for performing military funerals, weddings and other religious services and tending to the spiritual needs of the soldiers in tan Army. In the context of the Sussex Army, the Chaplain is not required to be a Priest, but must have a position within the URACE hierarchy.

Requirements to become a Chaplain in the Sussex Army include enlistment therein, and being a Level 3 Church Way member of the Aristotelian Church.