| This section is perhaps the most crucial provision in UIFSA. | 
| Drawing on the precedent of the federal PARENTAL KIDNAPPING | 
| PREVENTION ACT, 28 U.S.C. Section 1738A, the issuing tribunal | 
| retains continuing, exclusive jurisdiction over a child | 
| support order, except in very narrowly defined circumstances. | 
| First introduced by UIFSA in 1992, this principle is | 
| understood and widely accepted in all jurisdictions. "CEJ," as | 
| it is known in the child-support enforcement world, is | 
| fundamental to the one-child-support-order-at-a-time principle | 
| of UIFSA. At first glance this section appears to have been | 
| significantly rewritten; certainly minor adjustments have been | 
| made to the substantive rules established. But, with the | 
| exception of the addition of and entirely new Subsection | 
| (a)(2), the sole intent and effect of the 2001 amendments is | 
| to reorganize the statutory language for greater clarity. The | 
| basic concept that the tribunal issuing a support order | 
| retains continuing, exclusive jurisdiction to modify that | 
| order remains the cornerstone of | 
| the Act. |