One of the requirements for an employer that is mandated to offer health insurance is that it must meet a “Minimum Value” 60% actuarial value requirement.
This means that “on average” a plan must pay for 60% of covered claims for a large set of individuals. Starting in 2014 all health plans must fit in to specific Metal Levels. This type of plan would be called a Bronze plan.
The IRS has issued some proposed Safe Harbor Plan Designs that would meet the 60% actuarial value requirement. Below are the plans described by the IRS which will give you a good idea of what a Bronze plan will look like.