The Obama administration has published draft rules for the formation and operation of Affordable Insurance Exchanges, a key element in the PPACA (Obamacare) plan to increase insurance coverage.
There is a 75 day comment and then more time to digest the comments before final rules are issued. Implementation is due by January 1, 2014.
See the rules here, 244 pages:
http://ofr.gov/OFRUpload/OFRData/2011-17610_PI.PDF