On March 4, 2015, the U.S. Supreme Court heard oral arguments in King v. Burwell, a case that centers on the meaning of statutory language in the Patient Protection and Affordable Care Act (PPACA). At question in the case is whether or not the Internal Revenue Service (IRS) may issue regulations to extend tax-credit subsidies to coverage purchased through health Exchanges established by the federal government via the Department of Health and Human Services (HHS) under Section 1321 of PPACA.