(a) General rule.--Except as otherwise provided in section 5424 (relating to temporary emergency jurisdiction), a court of this Commonwealth which has made a child custody determination consistent with section 5421 (relating to initial child custody jurisdiction) or 5423 (relating to jurisdiction to modify determination) has exclusive, continuing jurisdiction over the determination until:
(1) a court of this Commonwealth determines that neither the child, nor the child and one parent, nor the child and a person acting as a parent have a significant connection with this Commonwealth and that substantial evidence is no longer available in this Commonwealth concerning the child's care, protection, training and personal relationships; or
(2) a court of this Commonwealth or a court of another state determines that the child, the child's parents and any person acting as a parent do not presently reside in this Commonwealth.
(b) Modification where court does not have exclusive, continuing jurisdiction.--A court of this Commonwealth which has made a child custody determination and does not have exclusive, continuing jurisdiction under this section may modify that determination only if it has jurisdiction to make an initial determination under section 5421.
Cross References. Section 5422 is referred to in sections 5210, 5423, 5424, 5428 of this title.