As part of the Affordable Care Act, employers are required to provide current employees and new hires with written notice of the availability of a Health Insurance Marketplace (also called an Exchange) where individuals may purchase health insurance. The Department of Labor has issued temporary guidance and model notices that employers may use for this purpose. Current full-time and part-time employees must be given the notice by October 1, 2013. Employees hired on or after October 1, 2013 must be given the notice within 14 days of their start date. 

The DOL issued two model notices; one for employers who offer a health care plan to some or all of their employees and one for employers who do not offer a health care plan.  Links to the model notices are below:

Technical Release 2013-02 - Guidance on the notice to employees of coverage options under FLSA §18B and updated model election notice under COBRA
Model notice for employers who offer a health plan to some or all of its employees
Model notice for employers who do not offer a health plan