Georgia, North Carolina, and Louisiana are among the latest states to pass legislation related to employers' use of E-Verify, the federal government's online employment eligibility verification system. Georgia's law will require the use of E-Verify by employers doing business in that state on a rolling basis beginning January 1, 2012 (for employers with 500 or more employees), with eventual use by all employers by January 1, 2013. North Carolina's law will require the use of E-Verify by employers doing business in that state on a rolling basis beginning October 1, 2012 (for employers with 500 or more employees), with eventual use by all employers with 25 or more employees by July 1, 2013, but has a limited exception for seasonal temporary employees working 90 or fewer days during a 12-month consecutive period. Louisiana's law, effective August 15, 2011 will require contractors who do business with a state or local public entity to use E-Verify and will provide a defense against certain civil penalties to private employers who utilize E-Verify. Although there is no blanket requirement on the federal level for private employers, other than those who contract or sub-contract with the federal government, to use E-Verify, employers have to be mindful of state-specific immigration laws which add to an employer's obligation under federal law to verify the employment eligibility of its workers and subject employers to state business license suspension or revocation and/or monetary penalties for noncompliance.