>What are they? Where are they listed?<
the Didache is probably the best example
http://www.earlychristianwritings.com/text/didache-roberts.html
I forgot about that one - I think it was the earliest writing. Excerpts are in the "Faith of the Early Fathers" book.
"Chapter 15. Bishops and Deacons; Christian Reproof. Appoint, therefore, for yourselves, bishops and deacons worthy of the Lord, men meek, and not lovers of money, and truthful and proved; for they also render to you the service of prophets and teachers. Therefore do not despise them, for they are your honored ones, together with the prophets and teachers. And reprove one another, not in anger, but in peace, as you have it in the Gospel. But to anyone that acts amiss against another, let no one speak, nor let him hear anything from you until he repents. But your prayers and alms and all your deeds so do, as you have it in the Gospel of our Lord.
Well, so much for the "tradition" of apostolic succession!