The U.S. Department of Health and Human Services (HHS) has approved a request by Pennsylvania Governor Tom Wolf for permission for his state to develop a state-based marketplace through which to offer health insurance to Pennsylvanians as provided for in the Affordable Care Act.
Currently, Pennsylvanians seeking health insurance use the federal exchange.  The constitutionality of the use of that exchange is currently being weighed by the Supreme Court and the Wolf administration’s desire to create a state exchange is widely considered an attempt to avoid a crisis should the court rule against the federal government in the case of King v. Burwell.  A ruling in that case is expected in the very near future.
Go here to see the letter from HHS Secretary Sylvia Burwell to Pennsylvania Governor Tom Wolf authorizing the state to move ahead with development of its state-based exchange.