Beginning May 26, 2015, the Department of Homeland Security (DHS) is extending eligibility for employment authorization to certain H-4 dependent spouses of H-1B nonimmigrants who are seeking employment-based lawful permanent resident status. From this date, DHS will allow these H-4 depedent spouses to accept employment in the U.S. 

This step was an important part of the executive action taken by President Obama in November 2014. 

For more information, please see the official announcement from U.S. Citizenship and Immigration Services here.