美国签证种类大全
Types of Visas: Immigration Classifications Chart
The following chart is based upon a publication distributed by NAFSA: Association of International Educators entitled; Immigration Classifications & Legal Employment of Foreign Nationals in the United States; by Gail Rawson. The complete chart may be ordered by contacting NAFSA. The following condensed adaptation provides a concise description of each visa classification.
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Classification
Description
A-1 / A-2
专业技术人员年度考核Foreign Diplomatic Personnel: Individuals in the U.S. as employees of a foreign ; ambassador; minister; diplomat; or consular officer.
Dependent of A-1 / A-2 Visa Holder: Immediate family members of foreign government official NOTE: Dependents also carry A-1 / A-2 status. May engage in full-time or part-time study. All work on-campus or off-campus must be approved by the U.S. Department of State by using Form I-566. An Employment Authorization Document EAD card from the INS is required.
A-3
Employee of Foreign Government Official: Attendants; servants; or personal employees of foreign government officials.
B-1
Visitor for Business: Individuals in the U.S. for a short period of time to engage in business activities such as negotiating contracts for overseas employees; consulting with business associates; attending professional conferences; or conducting independent research. May not engage in any employment in the U.S.; including salaried work or services performed on an independent basis. Incidental part-time study is allowed.
B-2
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Visitor for Tourism: Individuals in the U.S. for travel; tourism; or recreation. No employment is allowed. Reimbursement of expenses is prohibited. Incidental part-time study is allowed. May also enroll in short-term English language courses as long as the course of study is under 18 hours per week part-time and of "short duration."
Prospective Student or Prospective Scholar: Individuals who enter the  a clear intent to study here or to change to J-1 Exchange Visitor Status. Consulate notation on visa page indicates "Prospective" status. Individual must apply for a change of status before the expiration date on the I-94. May engage in full-time study. May not work; including during the time in which the application for a change of status is pending.
Visa Waiver
Waiver for Business VWB and Tourism VWT: Individuals permitted to enter the U.S. without a visa for a stay limited to 90 days. Available only to citizens of countries designated by the U.S. Department of State. No extension or change of status is allowed for this category. Work and study restrictions are the same as B-1/B-2 counterparts.
C-1
Aliens in Transit: Individuals in transit from one country to another "stopping over" in the U.S.
D-1 / D-2
Alien Crewman: Crew members employed on a vessel or aircraft who are in the U.S. on "stopovers."
E-1
Treaty Trader: Individuals in the U.S. to conduct trade under a treaty between their country and the U.S.; and key employees of companies trading under such treaty. E-1 dependents may engage in part-time or full-time study. No employment is allowed for dependents.
E-2
Treaty Investor: Individuals in the U.S. to develop or direct the operations of an enterprise in which they have invested substantial investments. Must be based on a treaty between visa holder's country and the U.S. E-2 dependents may engage in part-time or full-time study. No employment is allowed for dependents.
F-1
Student: Individuals in the U.S. engaging in a full course of academic or language study in an accredited educational programs. For information about employment authorization; read about the F-1 Student Employment Options. For more detailed information about maintaining legal F-1 status within the U.S.; go to Maintaining Your Legal F-1 Status.
F-2
Dependent of F-1 Visa Holder: Spouse and/or children of an F-1 student. Maynot engage in part-time or full-time study. No employment is allowed.
G-1
Representative of International Organization: Individuals in the U.S. as representatives of an international ; the United Nations and their dependents. Dependents may engage in part-time or full-time study. All work on-campus or off-campus for dependents must first be approved by the U.S. Department of State using Form I-566. An Employment Authorization Document EAD card from INS is required.
G-2
G-3
G-4
G-5
就业难Personal Employee of G-1; G-2; G-3; or G-4 Visa Holder: May engage in part-time study.
H-1A
Registered Nurse: Individuals in the U.S. to perform professional nursing services for a specific employer for a fixed period of time. May engage in part-time study while maintaining H visa status.车辆过户查询

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