20-5-308; or

20-5-308; or

(iv) No court of any other state would have jurisdiction under the criteria specified in paragraph (i), (ii) or (iii) of this subsection.

(b) Subsection (a) of this section shall be the exclusive jurisdictional basis for making a child custody determination by a court of this state.

(c) Physical presence of, or personal jurisdiction over, a party or a child shall not be necessary or sufficient to make a child custody determination.

20-5-302. Exclusive, continuing jurisdiction.

(a) Except as provided in W.S. 20-5-304, a court of this state which has made a child custody determination consistent with W.S. 20-5-301 or 20-5-303 has exclusive, continuing jurisdiction over the determination until:

(i) A court of this state determines that the child, the child's parents and any person acting as a parent do not have a significant connection with this state and that substantial evidence is no longer available in this state concerning the child's care, protection, training and personal relationships; or  (ii) A court of this state 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 state.

(b) A court of this state 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 W.S. 20-5-301.

20-5-303. Jurisdiction to modify determination.

(a) Except as provided in W.S. 20-5-304, a court of this state may not modify a child custody determination made by a court of another state unless the court of this state has jurisdiction to make an initial determination under W.S.