Copyright 2006 Ordo Templi Orientis. This is quoted verbatim from the O.T.O. International Bodymaster’s Handbook, 2000 e.v. edition. It is provided here for the use of O.T.O. members of whatever degree who do not have ready access to said work.
Certain forms or styles of address are used in formal correspondence with members of the various degrees of O.T.O. These should be employed when you are (1) writing to someone whose degree is known to you, or (2) writing to an officer whose office is associated with a particular degree, whether you know the officer’s actual degree or not. For instance, if writing to the President of the Electoral College, you would use the form of address for a Senator; if writing to a member of the Grand Tribunal, you would use the form of address for a G.I.C. When in doubt, keep it simple: Dear Brother (Sister).
The official forms of address for formal correspondence are given below: