 In 1996, NCCUSL revised UIFSA and the United States Congress passed the Personal Responsibility and Work Opportunity Reconciliation Act of 1996 (PRWORA), which required that all states adopt the 1996 version of UIFSA.In 2001, NCCUSL adopted additional amendments to UIFSA.As of 2011, only a few states had adopted the 2001 amendments.