Immigration law determines whether a person is an alien, the rights, duties, and obligations associated with being an alien in the United States, and how aliens gain residence or citizenship within the United States. It also provides the means by which certain aliens can become legally naturalized citizens with full rights of citizenship. Immigration law serves as a gatekeeper for the border of the nation, determining who may enter, how long they may stay, and when they must leave. Immigration lawyers represent persons seeking temporary and permanent residency (green cards) status in the U.S., those interested in obtaining U.S. citizenship through a process called naturalization, and clients facing deportation and removal. Immigration attorneys may also represent businesses seeking to secure temporary visa status for foreign employees.
Centralia is a city in Audrain and Boone counties in the U.S. state of Missouri. The population was 3,774 at the 2000 census. The Boone County portion of Centralia (by far the majority of the city) is part of the Columbia Metropolitan Statistical Area, while the Audrain County portion is part of the Mexico Micropolitan Statistical Area.