Re: Dual Rostering
The Manual of Policies and Procedures for Management of the Rosters of the Evangelical Lutheran Church in America contains this paragraph.
No Dual Roster Membership: An ordained minister of this church who enters the ordained ministry of another church body, or who joins a religious group or congregation of another church body (except as provided in 7.41.17.), or who serves a group schismatic from this church or from a congregation thereof, shall cease to be a member of this church. The ordained minister’s name shall be removed from the roster of ordained ministers by the bishop of the synod, who shall report the action to the secretary of this church and to the next Synod Assembly. (boldface in original)
This document was originally approved by the Church Council on November 14, 1994. With the ELCA's restructuring, and constitution and bylaw changes, the document was revised and again approved by the Church Council on November 12, 2005.
I note: it was the Church Council who approved Definition and Guidelines for Discipline and Vision and Expectations. These, like the Manual, have never been approved by a Churchwide Assembly.