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.
Arvin is a city in Kern County, California, in the United States. Arvin is located 15 miles (24 km) southeast of Bakersfield, at an elevation of 449 feet (137 m). As of the 2000 census, the city population was 12,956. In 2007, the United States Environmental Protection Agency (EPA) listed Arvin as having the highest levels of smog of any community in the United States. The city's level of ozone, smog's primary component, exceeded the EPA's acceptable limits an average of 73 days per year between 2004 and 2006. In Peter Greenberg's 2009 book Don't Go There!, the city is mentioned for its high pollution and ozone levels, although he does mention the main reasons for the pollution are not necessarily its own: its unfavorable geography, which allows airflows from its proximity to Los Angeles and Bakersfield, high amounts of nearby highway traffic, and diesel engines from agricultural vehicles. Wired telephone numbers in Arvin follow the format (661) 854-xxxx and the ZIP Code is 93203.