What Is a Green Card? A Guide to U.S. Permanent Residence

If you are researching how to live and work permanently in the United States, you will likely encounter the term Green Card. But a Green Card is more than an immigration document: it is evidence of lawful permanent resident status in the United States.

This guide explains what a Green Card means, who may qualify, the main ways people obtain permanent residence, what permanent residents can and must do, and how permanent residence differs from a temporary visa or U.S. citizenship.

What Is a Green Card?

A Green Card is the common name for the U.S. Permanent Resident Card (Form I-551). The card provides evidence that its holder has lawful permanent resident status in the United States. It also serves as evidence of authorization to live and work in the country.

The terms Green Card holder, lawful permanent resident (LPR), and permanent resident generally refer to a person who has been granted lawful permanent resident status.

The physical card and the underlying immigration status are related but are not exactly the same thing. The card is documentation of permanent resident status, and keeping the card current is important because it can be needed to demonstrate that status.

The name “Green Card” comes from earlier versions of the permanent resident card that had a green appearance. Today, the official term is Permanent Resident Card.

Who Can Get a Green Card?

There is no single Green Card eligibility rule that applies to everyone. A person must qualify through an applicable immigrant category and satisfy the requirements associated with that category.

Major pathways can include:

• Family-based immigration: Certain relatives of U.S. citizens and lawful permanent residents may qualify through family-sponsored immigration.
• Employment-based immigration: Certain workers, professionals, and other qualifying employment-based applicants may obtain permanent residence through employment categories.
• Diversity Visa program: Individuals selected through the Diversity Visa program may pursue immigrant visas or permanent residence subject to the program's requirements.
• Humanitarian and special immigrant categories: Certain refugees, asylees, special immigrants, and other people covered by U.S. immigration law may have pathways to permanent residence.
• Other statutory pathways: U.S. immigration law contains additional categories and programs with their own requirements.

For example, USCIS recognizes family relationships, employment, the Diversity Visa program, and refugee or asylee status among pathways through which people may obtain lawful permanent residence.

Because eligibility is category-specific, someone who qualifies through a family relationship may face very different requirements from someone applying through an employment-based category.

For a detailed assessment of specific requirements, see the relevant Green Card eligibility guidance rather than assuming that one set of requirements applies to every applicant.

How Do You Get a Green Card?

The general green card application process depends on where you are applying, the immigration category involved, and your individual circumstances. There is therefore no single application process that applies to every Green Card applicant.

Two broad routes are particularly important:

Adjustment of Status

An eligible person who is already in the United States may be able to apply for lawful permanent residence through adjustment of status. Form I-485, Application to Register Permanent Residence or Adjust Status, is used in many adjustment-of-status cases.

Whether adjustment of status is available depends on the applicant's immigration category and other legal requirements. The applicable category determines what forms, evidence, and procedural requirements apply.

Immigrant Visa and Consular Processing

A person applying for permanent residence from outside the United States will generally go through the immigrant visa process. Depending on the case, an immigrant petition may first be submitted to USCIS. After an approved petition is transferred to the Department of State's National Visa Center, the applicant may complete the required visa processing before an immigrant visa interview.

If an immigrant visa is issued and the applicant is admitted to the United States as a permanent resident, the person enters as a lawful permanent resident.

The exact forms, supporting evidence, interview requirements, fees, and processing steps can change and vary by category. Applicants should therefore verify current instructions with USCIS or the U.S. Department of State before filing.

Generally, the processing time for a green card application is from months to many years. However, the major impact of the green card processing time depends on the application type, such as where the application is submitted. Whether it is from the USA or outside the US. 

Green Card Rights and Responsibilities

Lawful permanent residence allows a person to live and work permanently in the United States, subject to the requirements and limitations of U.S. immigration law. The Permanent Resident Card provides evidence of that status and can also serve as an identification document.

A Green Card holder should understand both the benefits and responsibilities of permanent residence.

Permanent residents who are 18 or older generally must carry evidence of their immigration status. USCIS also advises permanent residents to keep their Permanent Resident Cards current.

What About Travel Outside the United States?

A Green Card allows permanent residents to travel internationally, but international travel does not eliminate the need to comply with U.S. immigration requirements.

Extended or frequent absences can raise separate immigration issues, particularly when a permanent resident later seeks naturalization or when the circumstances suggest that the person may no longer be maintaining permanent residence.

Travel requirements can also depend on the length and circumstances of an absence. Permanent residents planning extended travel should check current USCIS Case status and Department of State guidance before leaving the United States.

For specific travel or reentry situations, use dedicated immigration guidance rather than relying on the general information in this article.

How Long Is a Green Card Valid?

Most Permanent Resident Cards are issued with 10-year validity. A conditional permanent resident generally receives a card valid for two years.

A card's expiration date should not be confused with the concept of permanent resident status. The documentation may need to be renewed or replaced even though the underlying status has its own legal rules.

For a standard 10-year Green Card, USCIS uses Form I-90, Application to Replace Permanent Resident Card, for applicable renewal and replacement situations. Conditional permanent residents generally follow a different process to remove the conditions on residence rather than simply using Form I-90 to renew their conditional status.

If your question is specifically about renewal, replacement, or removal of conditions, use the appropriate dedicated Green Card guidance.

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Green Card vs. Visa vs. U.S. Citizenship

These terms are often used interchangeably in casual conversation, but they describe different immigration concepts.

An immigrant visa can be part of the process through which someone becomes a lawful permanent resident. After admission to the United States as a permanent resident, the person has LPR status.

A temporary or nonimmigrant visa, by contrast, does not by itself grant lawful permanent resident status.

A Green Card also does not automatically make its holder a U.S. citizen. Naturalization is a separate legal process with its own requirements.

What Happens After You Become a Permanent Resident?

Obtaining permanent residence is an important immigration milestone, but it also creates ongoing responsibilities.

A new permanent resident should:

1. Keep the Permanent Resident Card and other immigration records secure.
2. Understand the card's expiration date and applicable renewal or replacement requirements.
3. Maintain permanent resident status and comply with U.S. law.
4. Keep track of international travel and extended absences.
5. Understand that future naturalization has separate eligibility requirements.

USCIS explains that a lawful permanent resident's time as a permanent resident begins on the date permanent resident status is granted, which is reflected on the Permanent Resident Card.

For someone who later wants to become a U.S. citizen, naturalization requirements can include requirements concerning the length of permanent residence, continuous residence, physical presence, English and civics knowledge, and other statutory requirements. The exact requirements depend on the applicable naturalization basis.

Conclusion

A Green Card is evidence of lawful permanent resident status in the United States, allowing an eligible person to live and work permanently in the country while meeting the responsibilities associated with permanent residence. The route to a Green Card depends on the underlying immigration category, so family-based, employment-based, humanitarian, diversity, and other applicants may follow different processes.

If you are researching a Green Card for your own situation, the most useful next step is to identify the applicable immigration category and then review the specific eligibility, application, documentation, or processing requirements for that category. Because immigration rules and procedures can change, verify current requirements directly with USCIS or the U.S. Department of State before taking action.