While the president's health law is vast and extraordinarily complex, it is in one respect very simple. Subsidies are only to be made available, and tax penalties for not signing up for health insurance are only to be assessed, in states that create their own health-care exchange. The IRS, however, is attempting to enforce tax penalties in all states—including Oklahoma and the majority of the other states that have declined to create their own exchanges. Citizens and businesses in these states must use the federal exchange instead.H/T Byron York
The distinction is critical, because under the terms of the law it is the availability of government insurance-premium subsidies that triggers the penalties against businesses if they fail to provide their employees with health insurance that the administration deems acceptable.
Update: Here's the Cato Institute's take on the issue.
H/T WSJ commenter Teresa Rich