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What are Green Cards and How do They Work?

30 October, 2025

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What are Green Cards

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Moving to a new country is a dream for many, whether it’s for better job opportunities, family reunification, or simply a fresh start. For those eyeing the United States, one term often comes up: green cards. But what exactly are green cards, and how do they work?

If this is what you are wondering, this blog will break down everything you need to know about green cards, including their purpose, types, application process, and the differences between Green Cards vs Citizenship.

What is a Green Card?

A green card, officially known as a Permanent Resident Card, is a document issued by the U.S. Citizenship and Immigration Services (USCIS) that grants an individual the right to live and work permanently in the United States. Despite its name, the card is no longer green but contains critical information like the holder’s name, photo, and a unique identification number. Holding a green card signifies that you are a lawful permanent resident (LPR), allowing you to enjoy many of the same benefits as U.S. citizens, though with some limitations.

Green cards serve as proof of your legal status in the U.S. They are essential for immigrants who wish to build a life in the country, whether through employment, family ties, or other pathways. Understanding how green cards function is crucial for anyone considering a long-term stay in the U.S.

The Purpose of Green Cards

The primary purpose of a Permanent Resident Card is to provide immigrants with lawful permanent residency. This status allows you to live in the U.S. indefinitely, work in most industries, and access certain benefits like healthcare and education. Unlike temporary visas, which have expiration dates, this card offers stability, enabling holders to plan for a future in the U.S. without the constant worry of visa renewals.

However, a Permanent Resident Card comes with responsibilities. Holders must maintain their residency by spending significant time in the U.S., paying taxes, and adhering to U.S. laws. Failure to meet these obligations can result in the loss of green card status.

Types of Green Cards

There are several categories of this card, each designed for specific circumstances. Here’s a breakdown of the most common types:

  • Family-Based Cards: These are issued to individuals with close family members who are U.S. citizens or permanent residents. Eligible relatives include spouses, children, parents, and siblings. The process often involves a U.S. relative sponsoring the applicant, followed by a waiting period that varies based on the relationship and country of origin.

  • Employment-Based Cards: For those with job offers or exceptional skills, employment-based green cards are an option. These are divided into preference categories, such as EB-1 for individuals with extraordinary abilities, EB-2 for professionals with advanced degrees, and EB-3 for skilled workers. Employers typically sponsor these applications, though self-petitioning is possible in some cases.

  • Diversity Visa Lottery: The Diversity Visa (DV) Lottery programme offers a Permanent Resident Card to individuals from countries with low immigration rates to the U.S. Each year, approximately 50,000 green cards are awarded through a random selection process, making it a unique opportunity for those who qualify.

  • Refugee or Asylee Cards: Individuals granted refugee or asylee status in the U.S. can apply for a Permanent Resident Card after one year. This pathway is designed for those fleeing persecution or danger in their home countries.

  • Other Special Categories: Certain groups, such as victims of human trafficking, crime victims under the U visa programme, or individuals under special immigrant categories (e.g., religious workers), may also qualify for a Permanent Resident Card.

How to Apply for a Green Card?

Applying for a green card involves several steps, and the process varies depending on the category. Below is a general overview:

  • Step 1: Determine Eligibility: First, confirm that you qualify for a green card under one of the categories mentioned above. For example, family-based applicants need a qualifying relative, while employment-based applicants may need a job offer or proof of extraordinary ability.

  • Step 2: File a Petition: Most green card applications begin with a petition filed with USCIS. For family-based cards, the U.S. relative files Form I-130 (Petition for Alien Relative). For employment-based cards, the employer typically files Form I-140 (Immigrant Petition for Alien Worker). In some cases, such as the Diversity Visa Lottery, no petition is required.

  • Step 3: Wait for Visa Availability: Due to annual caps, some green card categories have waiting periods, especially for family-based and employment-based applications. The wait time depends on the applicant’s country of origin and the preference category.

  • Step 4: Adjustment of Status or Consular Processing: If you’re already in the U.S., you may apply for an Adjustment of Status using a specific form, allowing you to transition to permanent resident status without leaving the country. If you’re outside the U.S., you’ll go through consular processing at a U.S. embassy or consulate.

  • Step 5: Attend an Interview: Many green card applicants are required to attend an interview with USCIS or consular officers. This step verifies the information provided and ensures eligibility.

  • Step 6: Receive Your Green Card: If approved, you’ll receive your green card in the mail. The card is typically valid for 10 years, though conditional cards (e.g., for spouses of U.S. citizens married less than two years) are valid for two years and require additional steps to remove conditions.

Green Cards vs Citizenship: Key Differences

While a Permanent Resident Card and citizenship both allow you to live in the U.S., they differ significantly. Understanding Green Cards vs Citizenship is essential for immigrants planning their future.

  • Rights and Privileges: Green card holders can live and work in the U.S., but they cannot vote in federal elections or hold certain public offices. Citizens enjoy full rights, including voting and access to U.S. passports.

  • Permanence: A  Permanent Resident Card can be revoked if residency requirements are not met or if the holder commits certain crimes. Citizenship, once granted, is generally permanent.

  • Eligibility for Benefits: Green card holders may access some federal benefits, but citizens have broader access, including certain welfare programmes.

  • Pathway to Citizenship: Green card holders can apply for citizenship after meeting residency requirements (typically five years, or three for spouses of U.S. citizens). This process, known as naturalisation, involves passing a civics test and demonstrating English proficiency.

Choosing between maintaining a green card or pursuing citizenship depends on your long-term goals. For some, the stability of a green card is sufficient, while others seek the full rights of citizenship.

Maintaining Green Card Status

Once you receive a green card, you must maintain your status to avoid losing it. Key responsibilities include:

  • Residency Requirements: Spend at least six months per year in the U.S. Extended absences (over six months) may raise questions about your intent to maintain residency.

  • Renewal: A Permanent Resident Card must be renewed every 10 years (or two years for conditional cards). File Form I-90 to renew or replace your card.

  • Legal Compliance: Avoid criminal activities that could lead to deportation. Certain offences, such as fraud or serious crimes, can result in the loss of green card status.

  • Taxes: File U.S. taxes annually, as green card holders are considered U.S. tax residents.

Benefits and Limitations of Green Cards

Now that you have read what green cards are, their types, and the application process, let’s take a look at the benefits and limitations, too. 

Benefits

  • Work Opportunities: Green card holders can work in most U.S. industries without needing a work visa.

  • Education: Access to in-state tuition rates at public universities and certain financial aid programmes.

  • Travel: Travel in and out of the U.S. with fewer restrictions than temporary visa holders, though extended absences may require a reentry permit.

  • Path to Citizenship: Green cards are a stepping stone to naturalisation.

Limitations

  • No Voting Rights: Unlike citizens, green card holders cannot vote in federal or most state elections.

  • Deportation Risk: Violating residency rules or committing certain crimes can lead to deportation.

  • Limited International Mobility: While green card holders can travel, they must maintain U.S. residency, which can complicate long-term stays abroad.

Wrapping Up

Green cards are a gateway to a new life in the United States, offering lawful permanent residency and a range of benefits, from work opportunities to educational access. Whether through family ties, employment, or the Diversity Visa Lottery, obtaining this card is a significant milestone for immigrants. However, it’s not the same as citizenship!

Planning to travel to or from the U.S. as a green card holder? Ensure your journey is worry-free with travel Insurance. At Niva Bupa, we offer comprehensive travel insurance plans that offer coverage for medical emergencies, trip cancellations, and more, giving you peace of mind wherever you go.

People Also Ask

  1. What is the difference between a green card and a visa?

    A green card grants permanent residency, allowing you to live and work in the U.S. indefinitely, while a visa is typically temporary and restricts your stay or activities.

  2. How long does it take to get a green card?

    The timeline varies by category. Family-based green cards may take 1–10 years, while employment-based ones can take 1-5 years, depending on visa availability and country of origin.

  3.  Can green card holders travel internationally?

    Yes, green card holders can travel abroad, but must avoid extended absences (over six months) to maintain residency. A reentry permit may be needed for longer trips.

  4. What happens if my green card expires?

    An expired green card doesn’t revoke your status, but you should renew it using Form I-90 to avoid issues with employment, travel, or proving residency.

  5. Can I apply for a green card while in the U.S. on a tourist visa?

    Yes, you can apply for an Adjustment of Status if eligible, but entering with the intent to stay permanently on a tourist visa may raise legal issues.

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