This brief updates the armed assault hospital cost estimates with data from 2014, the first year of full implementation of the ACA's major coverage provisions. We provide data for Arizona, Florida, Kentucky, New Jersey, North Carolina, and Wisconsin; of these, Arizona, New Jersey, North Carolina, and Wisconsin were included in our previous brief. We selected these six states based on data availability, population size, geographic representation, and participation in the ACA Medicaid expansion (table 1). The states reflect a range of decisions on Medicaid coverage: Arizona, Kentucky, and New Jersey adopted the Medicaid expansion in 2014, but Florida, North Carolina, and Wisconsin did not. Arizona had a Section 1115 demonstration waiver in place in 2010 that provided coverage to childless adults with incomes up to 100 percent of the federal poverty level (FPL). Wisconsin also had a Section 1115 demonstration waiver to extend eligibility to 200 percent of FPL, but enrollment for the program was capped as of October 2009. In 2014, Wisconsin used state funds to provide eligibility to childless adults with incomes up to 100 percent of FPL and removed the enrollment cap. Most importantly, all six states have complete data for the analysis from the Healthcare Cost and Utilization Project, described later in this brief.