For talks and general listening it should be at an average of 68db. For singing and such, you should be at a max of 85db. Typically the amps at the cong. level should hit the protect limit at 100db or so.
After one CO visit all the brothers involved with the sound system and microphones were called into the back room and given a good ass reaming. The elder in charge of the meeting was so upset he was turning red in the face.
Apparently the circuit overseers wife couldn't hear some of the comments in their entirety.