In a 5-4 majority, the Supreme Court has upheld the individual mandate in the Patient Protection and Affordable Care Act (Individual Health Care Act). This mandate requires most Americas to have health care. If they do not, they will face a penalty. This mandate would go into effect for tax years ending after December 31, 2013.
For more information: http://www.washingtonpost.com/politics/supreme-court-to-rule-thursday-on-health-care-law/2012/06/28/gJQAarRm8V_story.html