Unitarian Universilism has no Creed, no Dogma, no hierarchy. In short each congregation is unique in it's own right.
Augustine phrases it rather well:
What more shall I teach you than what we read in the apostles? FOR HOLY SCRIPTURE FIXES THE RULE FOR OUR DOCTRINE, LEST WE DARE BE WISER THAN WE OUGHT. Therefore I should not teach you anything else except to expound to you the words of the Teacher. -- Augustine, De Bono Viduitatis.
Except this one: "There shall be no Creed, no Dogma, no hierarchy."