Idaho, Nevada, New Mexico and Utah have received approval to run their own health insurance exchanges starting in January 2014, Reuters reports.
David Morgan reports 17 states and the District of Columbia are set to run their own exchanges under the Affordable Care Act and Mississippi has applied to run its own exchange as well.
Mississippi has not received approval because of disagreements over how much authority state officials will have over the operations of the exchange, according to the report.
Arkansas and Delaware will operate their exchanges in partnership with the federal government, Morgan writes.
States have until Feb. 15 to decide whether they want to run their exchanges in a similar fashion, according to Reuters.