Just released:
Most employers will be required to provide a written notification to employees in regards to the ability to access coverage through the new Health Insurance Marketplaces, also known as the exchanges. Even employers that don't provide coverage to their employees will be required to provide this written notification.
The U.S. Department of Labor (DOL) has now released model template notices that can be used by employers.
Employers must provide this notice to existing employees by October 1, 2013.
The DOL has published some general information about the notification requirements.
View model notice for employers offering coverage
View model notice for employers not offering coverage
View model notice for COBRA election