Working in the United States --- H1B
Many aliens want to come to the United States to work. This page provides a summary of employment-based nonimmigrant and immigrant visa classifications and other categories of aliens who are eligible for employment authorization. Each classification provides a link to more detailed information on its requirements.
A common way to work temporarily in the United States as a nonimmigrant is for a prospective employer to file a petition with USCIS on your behalf. The Temporary (Nonimmigrant) Workers webpage describes the main nonimmigrant temporary worker classifications.
If you have the right combination of skills, education, and/or work experience, you may be able to live and work permanently in the United States by seeking an employment-based immigrant visa. The Permanent Workers webpage describes the five employment-based immigrant visa preferences (also called categories).
If you live outside the United States and want to work here, you generally must apply for a visa from the U.S. Department of State (DOS), unless a visa is not required for people from your country of nationality. You may visit DOS' Travel Without a Visa page for more information.
In many cases, USCIS must approve your petition before you are eligible to apply to DOS for a visa or seek admission at a port of entry. Before entering the United States, you must present yourself to a U.S. Customs and Border Protection (CBP) officer and receive permission to enter the United States and engage in your proposed activity.
If you are in the United States in a lawful nonimmigrant status that does not provide employment authorization, you generally may apply for:
l A change of status to a nonimmigrant classification that provides employment authorization; or
l An adjustment of status to become a lawful permanent resident. This may be a concurrent filing with an immigrant visa petition or, depending on the circumstances, may require an applicant to obtain an approved immigrant visa before applying for an adjustment of status to become a lawful permanent resident.
Depending on the classification you seek, your change or adjustment of status application might require a U.S. employer or other qualified requestor to file an application or petition on your behalf to establish your eligibility before we approve your application. However, if you apply based on certain classifications (for example, an alien with extraordinary ability or as a nonimmigrant E-1 or E-2 principal treaty trader or investor), you may be eligible to self-petition, which means filing an application on your own behalf.
Additionally, if you are in the United States, including if you are an applicant for permanent residence or a certain family member of an alien who has lawful nonimmigrant status, you may file Form I-765, Application for Employment Authorization, to request employment authorization and an Employment Authorization Document (EAD). You may also apply for an EAD that shows such authorization if your immigration status authorizes you to work in the United States without restrictions.
The conditions you must meet and how long you can work in the United States depend on the type of immigration status the Department of Homeland Security (DHS) grants. You must comply with all conditions of your employment authorization and the terms of your admission to this country. If you violate any of the conditions, you could be removed from or denied re-entry into the United States.
在美国工作 --- H1B
许多外国人想来美国工作。本页提供了基于就业的非移民和移民签证分类的摘要，以及有资格获得就业授权的其他类别的外国人。每个分类都提供了一个链接，链接到其需求的更详细信息。
作为非移民在美国临时工作的一种常见方式是未来雇主代表你向USCIS提交申请。临时(非移民)工人网页描述了主要的非移民临时工人分类。
如果你有合适的技能、教育和/或工作经验的组合，你可以通过寻求就业移民签证在美国永久生活和工作。永久工人网页描述了五种基于就业的移民签证偏好(也称为类别)。
如果你生活在美国以外，并且想在这里工作，你通常必须向美国国务院(DOS)申请签证，除非来自你国籍国的人不需要签证。你可以访问DOS的无签证旅行页面了解更多信息。
在许多情况下，USCIS必须批准你的申请，然后你才有资格向DOS申请签证或在入境港申请入境。在进入美国之前，你必须向美国海关和边境保护局(CBP)官员证明自己，并获得进入美国和进行拟议活动的许可。
如果你在美国的合法非移民身份没有提供就业授权，你一般可以申请:
l 身份变更为非移民类别，提供就业授权;或
l 调整身份，成为合法永久居民这可能是与移民签证申请同时提交的文件，或者根据情况，可能要求申请人在申请调整身份成为合法永久居民之前获得批准的移民签证。
根据您寻求的分类，您的身份变更或调整申请可能需要美国雇主或其他有资格的请求者代表您提交申请或请愿书，以确定您的资格，然后我们才批准您的申请。然而，如果你基于特定的分类申请(例如，具有非凡能力的外国人，或作为非移民E-1或E-2主要条约贸易商或投资者)，你可能有资格自我申请，这意味着代表你自己提交申请。
此外，如果你在美国，包括如果你是永久居留权申请人或具有合法非移民身份的外国人的某个家庭成员，你可以提交I-765表格，就业授权申请，以请求就业授权和就业授权文件(EAD)。如果你的移民身份允许你在美国不受限制地工作，你也可以申请显示这种授权的EAD。
你必须满足的条件以及你可以在美国工作多长时间取决于国土安全部(DHS)授予的移民身份类型。你必须遵守你的工作授权的所有条件和你进入这个国家的条款。如果你违反了任何条件，你可能会被赶出或拒绝再次进入美国。
Citation: 1. Working in the United States --- H1B
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