Faced with greater-than-expected opposition from states to
setting up their own online health insurance marketplaces under the
Affordable Care Act, the Department of Health and Human Services
has come up with four types of marketplaces in an effort to entice
states to participate at some level.

Only 17 states and the District of Columbia are fully running
their own state-based marketplaces, also known as exchanges. Seven
states are conducting a few functions in state partnership
marketplaces; seven states are only reviewing health plans in plan
management marketplaces; and HHS is operating federally-facilitated
marketplaces in the remaining 36 states.

Bloomberg BNA's Health Insurance Report published a special
report by BNA correspondents around the country Sept. 18 providing
a snapshot of information about the state-based marketplaces and
the state partnership marketplaces.