§48-16-613. Jurisdiction to modify support order of another state when individual parties reside in this state.
(a) If all of the individual parties reside in this state and the child does not reside in the issuing state, a tribunal of this state has jurisdiction to enforce and to modify the issuing state's child support order in a proceeding to register that order.

(b) A tribunal of this state exercising jurisdiction as provided in this section shall apply the provisions of parts 1 and 2 and this part to the enforcement or modification proceeding. Parts 3 through 5, inclusive, and parts 7 and 8 do not apply and the tribunal shall apply the procedural and substantive law of this state.