Our covenant's very long and convoluted charter is pasted below (this is what happens when a bunch of young magi join a winter covenant). I tried to pull out only the relevant sections, but most of the charter is dedicated to vis and resolving disputes between members, so I'm just giving you the whole thing.
(spelling errors are, um, historical)
Initial Covenant Charter, May 16th, 1037
I maga Gretta of House Bjornaer do swear to protect and defend the covenant I found on this day, the day of Brendan the Apostle, in the Christian Year 1037 by the reconing of the emperor Julian. Those who swear this oath I shall treat as I wish myself to be treated. We shall be as one body and one mind against the trials of this world. From them I will keep no vis or books, as they shall not keep these things from me.
I shall serve on a council of my peers, which shall gather on the full moon before mid winters day every year. I shall make every effort to attend this meeting, or, if I may not, in making my opinions known to my peers and giving my sigil and voting right to another who is able to attend. No meeting shall be held unless more than half of those who swore this oath are present. Meetings may be held at any time to decide issues of import to the covenant, provided enough of my sodales are present. Two thirds of the votes must agree to amend this oath. A majority of votes shall be needed to decide any other issue.
That I not be accused of abandoning my sodales in their hour of need, I will willingly give one season of my time to the covenant every year. The use of this season shall be at the disgression of the council.
At the yearly meeting of the council, shares of vis shall be given to myself and those others who have sworn this oath. Each magus shall receive one share of vis, and the covenant itself shall recive two shares. The use of the covenant's vis shall be at the disgression of the council. It shall be used only for the good of the covenant.
Should I find myself in a dispute with another member of this covenant, I swear that I will not challenge them to certamen or Wizards War. I shall bring my dispute to the council and ask for resolution.
I swear that the members of House Diedne and their demonic allies shall be my enemies. I shall offer them no shelter at this covenant.
The text of this oath shall be brought to the senior Quaesitor of Hibernia, and it shall be kept safe by him. Should any dispute as to what I swore, I ask my sodales to inquire with the Quaesitors. Any ammendments to this oath shall be brought before the Quaesitors as well, and kept by them.
I swear that I shall hold to this oath and to any amendments made to it. Should the council of my sodales agree that I have rejected this oath I will willingly leave this covenant, asking for no compenasation from common covenant stores. I swear this solumly, in the name of Hermes Trismegistus and Jesus Christ.
First Ammendment, November 25th, 1037
I further swear that, should I want vis of an Art that my sodales also desire our skill shall be the judge of our need. We shall all cast the spell that we know best which uses the desired Art before the yearly council. Who ever shall cast the spell of the highest magnitude shall gain the desired Art. If there are two spells of similar distinction, than none shall take any vis of the desired Art until the next year. By these means we shall hone our skills and grow togeather as magi. The covenant shall take its shares first and irrespective of this portion of the oath, as decided by the vote of the council
Second Ammendment, December 15th, 1065
I further swear that there shall be two classes of membership at Beria. The first shall be composed of those magi currently resident, and any they, and they alone, vote to have join them. These shall be the senior members of the covenant. All other members are junior members. While the responsibilities for both parties shall be the same, the priviledges, including vis shares and voting, shall be doubled.
Third Ammendment, December 20th , 1070
I further swear that any services owed by me to the covenant will be done promptly and dilligently. Should I fail to uphold this portion of the oath, or should the council find that I have done so, I will return my vis share for that year to the covenant stores, with no hope of having them returned to me.
Fourth Ammendment, November 26th, 1140
I further swear that the covenant of Beria is strong and stable, and no longer requires a full season of service from its members every year. Instead I will give the covenant one season of service every three years. That I may be encouraged to represent my covenant before Tribunal, the year of Tribunal shall not count as one of the three.
Fifth Ammendment, June 3rd, 1145
I further swear that the statement of this oath alone is not sufficient for membership in this covenant. Any new member must be accepted by a vote of the yearly council. Further, I swear that I shall pursue any magi who have trecherously gained membership in this covenant by oath alone, and not by general agreement of the members of this covenant, to the ends of the earth. I shall see all they love destroyed, including their lives.
Sixth Ammendment, December 1st, 1145
I further swear that no part of this oath conflicts with Hermetic Law. Should any part be found to, I shall follow the Code before I follow this oath. Further, I swear that no ammendments shall be made to this oath unless they are voted on at the yearly meeting of the council or unless they are unanimously aclaimed by every member of the covenant.
Seventh Ammendment, November 27th, 1159
I further swear that any magus charged with the management of two vis sources of this covenant shall be counted as having done his full service to the covenant, even if such service takes less time than one season every three years.
Eighth Ammendment, December 12, 1163
I further swear that it shall be sufficient for any magus wishing to lawfully join this covenant to state "I swear to uphold the covenant of Beria and its attendant oaths as held by the Quaesitors" rather than reciting the full text of this oath.
Ninth Ammendment, December 19th, 1184
I further swear that any product created with the vis of the covenant is the covenant's, even if but a single pawn was used. I further swear that any member of this covenant who does not attend ten yearly meetings in a row shall be cast out of the covenant and I shall be free of all responsibility to them.
Tenth Ammendment, November 28th, 1205
I further swear that the covenant shall recieve a double vis share every seven years, as counted from Tribunals.
(Scrawled below the above, undated. Quasitorial records report that this was recived in the fall of 1234.) I further swear that the junior magi shall have their own council. They shall not recive an individual vote on the ruling council of the covenant, but instead they shall collectively have one vote, to be aportioned based on the decisions of this junior council.