An Employment Authorization Document (EAD) is a work authorization card that is issued by the USCIS.

U.S. employers who hire illegal immigrants are subject to civil fines or criminal penalties if a pattern of violations is found.

The procedure established by the Immigration Reform and Control Act of 1986 (IRCA) requiring U.S. employers to verify the identity and eligibility of individuals to legally work. Form I-9 is used for all individuals (U.S. citizens and aliens) hired or referred for a fee on or after November 7, 1986. INA Section 274A, 8 USC Section 1324a.

The official name for a work permit and authorization by the USCIS to legally take upon work in the United States.

Entry visas are the labels that State Department personnel apply to the page of a passport. They represent the State Department's belief that the person is eligible to enter the US to pursue a particular activity. There is a nonimmigrant classification defined by an entry visa to comprehend many activities. Entry visas may have a limited validity, depending upon the holder's country of citizenship. Citizens of Canada, Canadian landed immigrants with a Commonwealth nationality and residents of some British territories (principally Bermuda) are (largely) exempt from the entry visa requirement. An expired entry visa does not affect a holder's ability to remain in the US; only the I-94 card does. This is because the entry visa is only an authorization for an individual to present him or herself to an USCIS officer at a port of entry (such as an airport) for consideration of admission. The USCIS determines how long an individual may remain in the US. An expired entry visa means that the holder must get a new one before trying to come back in to the US again in the status indicated on the visa label. There are some exceptions to this.

An exchange visitor is a foreigner who enters the United States as a partaker in an official program by the Secretary of State for the purpose temporarily.

Exclusion is the official term for denying an alien entry into the United States either through an expedited removal procedure or through removal proceedings in the presence of an immigration judge.

The term used to describe the application process of extending the stay period listed on Form I-94.

F-1 is the visa type used by international students to enter the United States. The I-94 Form in the passport will be marked with the letters “F-1” and “D/S”. D/S stands for “Duration of Status”.

A nonimmigrant foreigner who enters the United States to finalize a valid marriage within ninety days of her/his entry with a U.S. citizen.

This is a document that the university or school a person is attending provides to the new student which allows he or she to enter the U.S. legally through a J-1 visa.

The General provisions that every naturalization applicant must meet such as being 18 years of age, a legal permanent resident with five years of continuous residence in the United States who have been physically present in the country for half that period and who have a good character for at least that period.

A Green Card, officially known as a Permanent Resident Card (Form I-151 or Form I-551) is evidence of lawful permanent resident status in the United States. It allows a foreign national to live, work legally, travel abroad and return to the United States. Green Card holders may also apply for U.S. citizenship after a certain period of time.

The classification of an individual who qualifies to perform a specialty occupation in the U.S. The current period is three years with an option to renew the H-1B visa for another 3 years after the first period is over.

Public Law 101-649 that increased the numerical limitations on legal immigration to the United States, amended the reasons for exclusion and deportation, allowed provisional protected status to foreigners of some countries, amended and established new nonimmigrant entrance classes, amended and extended the Visa Waiver Pilot Program, and amended naturalization authority and requirements.