Continuing jurisdiction to enforce child support order.

1. (a) A tribunal of the commonwealth that has issued a child support order consistent with the law of the commonwealth may serve as an initiating tribunal to request a tribunal of another state to enforce:

   1. (1) the order if the order is the controlling order and has not been modified by a tribunal of another state that assumed jurisdiction pursuant to the Uniform Interstate Family Support Act; or
   2. (2) a money judgment for arrears of support and interest on the order accrued before a determination that an order of a tribunal of another state is the controlling order.
2. (b) A tribunal of the commonwealth having continuing jurisdiction over a support order may act as a responding tribunal to enforce the order.