He was made the diocesan bishop on May 16, 1998.
Lang was only 44 years old, and had no experience as a diocesan bishop.
She is also the world's first female diocesan bishop to succeed another woman.
Yet his episcopal work was by no means simply that of a diocesan bishop.
If the legislation was passed he would find it difficult to remain a diocesan bishop.
The church of a diocesan bishop is known as a "cathedral".
It is normally held by a diocesan bishop, who may however remain in office after leaving his see.
Approval for any such move would have to come from the diocesan bishop, the guidelines said.
He took over as diocesan bishop upon Tuttle's death in 1923.
Appeals against Court decisions were made directly to the diocesan bishop.