The leadership of the Augustana Catholic Church changed on December 1, 2011, with the resignations of its founding metropolitan archbishop and the bishop of the Diocese of Michigan.
On April 24, 2012, Archbishop Edmondson of the Augustana Catholic Church and Archbishop Chris M. Hernandez, Archbishop Co-Adjutor of the North American Old Roman Catholic Church - Utrecht Succession, signed a Concordat of Full Communion and Pledge to Full Unity.