The Court listened to arguments on the 19th century Anti-Injunction Act, which bars a lawsuit from being brought forth until the tax has been actually levied. Essentially, the penalty imposed as part of the individual mandate on those who eschew health insurance will not go into effect until 2014, meaning a lawsuit could not be ruled on until 2015. Interestingly, the federal government, defending the individual mandate, does not ascribe to the notion of the penalty as a tax, therefore nixing a delay in the case.