by Blake P. Somers, Lawyer Referral Service Panelist
A Green Card is a slang term for a document that demonstrates that a person is a permanent resident of the United States. With the exception of potentially some security clearances of sensitive government positions, permanent residents are generally entitled to work wherever they please and for whomever they choose. In addition, they may travel in and out of the United States as they see fit, although there are certain restrictions on the length of time they may be out of the United States (and in some instances, there are certain restrictions as to the places they can travel).