The federal government promised that it would limit waiver grants to states for the No Child Left Behind Act of 2001 (NCLB). It largely kept that promise, but states did gain significant flexibility through amendments to accountability plans. OLS model estimates showed that larger, more affluent, and more Republican states submitted more amendment requests and the federal Department of Education approved the amendments of states that received more federal funding, had a more developed standardized testing system in place prior to NCLB, and voted Republican. These findings suggested new avenues of exploration for scholars of executive federalism. (Contains 8 notes and 3 tables.)