JURISDICTION TO MODIFY DETERMINATION

Except as otherwise provided in Section 16 of this act, a court of this state may not modify a child custody determination made by a court of another state unless a court of this state has jurisdiction to make an initial determination under paragraph 1 or 2 of subsection A of Section 13 of this act and:

1. The court of the other state determines it no longer has exclusive, continuing jurisdiction under Section 14 of this act or that a court of this state would be a more convenient forum under Section 19 of this act; or

2. A court of this state or a court of the other state determines that the child, the child’s parents, and any person acting as a parent do not presently reside in the other state.