The Chief Tax Chaplain held a position of significant authority within the Ugor's governmental and religious structure, as described in Ugor species lore. Individuals journeying to the Ugors' Paradise system, characterized by its abundance of scrap, were permitted to meet with the Chief Tax Chaplain to remit required entry and permit dues (which the Ugors considered voluntary contributions). In the period spanning from the Battle of Yavin to the Battle of Hoth, ArrGack served in the role of the Ugors' Chief Tax Chaplain.