As you undoubtedly know, the U.S. Supreme Court today upheld most provisions of the Patient Protection and Affordable Care Act. The Court, in a 5-4 ruling, upheld the "individual mandate" requiring individuals to acquire and maintain health care insurance or pay a penalty, and also narrowed the Medicaid provisions of the Act substantially, prohibiting the federal government from withholding funds from state Medicaid programs that decline to follow the expansion of the Medicaid program.
In essence, what this ruling means is that employers and health care providers must continue to work on implementation of the law's requirements. While Congress may act down the road on changing the law, the Administration will continue to implement the regulations under the Act - and issue new regulations. Employers and health care providers must continue their work to comply with those requirements.
The opinion is available online at http://www.supremecourt.gov/opinions/11pdf/11-393c3a2.pdf.