(750 ILCS 22/206)
    Sec. 206. Continuing jurisdiction to enforce child-support order.
    (a) A tribunal of this State that has issued a child-support order consistent with the law of this State may serve as an initiating tribunal to request a tribunal of another state to enforce:
        (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) 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.
    (b) A tribunal of this State having continuing jurisdiction over a support order may act as a responding tribunal to enforce the order.
(Source: P.A. 99-119, eff. 1-1-16.)