The GAO has released a report summarizing actions that selected states have taken to date to prepare for the ACA’s Medicaid eligibility expansion provisions that go into effect January 1, 2014.  The GAO found that the six states reviewed (CO, GA, IA, MN, NY, and VA) are taking some steps to prepare for the Medicaid expansion, including assessing eligibility changes and upgrading Medicaid information technology systems.  States report a number of challenges, however, including insufficient federal guidance in a number of areas, including the use of Modified Adjusted Gross Income to determine an applicant’s eligibility under various scenarios.  The GAO report also highlights the views of selected state officials on the fiscal implications of the Medicaid expansion on states’ budget planning.