What a Green Card Is and the Main Routes to Get One

A green card is a document that lets you live and work permanently in the United States as a lawful resident. It is not citizenship — you do not vote or hold a U.S. passport — but it gives you the right to stay indefinitely, work for any employer, and travel in and out of the country. You can explore for citizenship after holding a green card for a certain period, usually three to five years depending on how you obtained it.

There are several distinct paths to a green card, and which one applies to you depends entirely on your situation. The main routes are: a job offer from a U.S. employer, family sponsorship by a relative who is a U.S. citizen or green card holder, diversity visa lottery (a random drawing open to people from countries with low immigration to the U.S.), refugee or asylee status, and special categories like victims of trafficking or certain religious workers. Each path has different requirements, timelines, and costs.

The process always involves the U.S. Citizenship and Immigration Services (USCIS), which is the federal agency that handles green card petitions. You cannot straightforward walk into an office and request one — someone must sponsor you (your employer, a family member, or the government through a lottery), or you must first be granted asylum or refugee status. The sponsorship or status is the foundation; without it, you have no path forward.

Key Takeaways

  • A green card requires sponsorship from an employer, family member, or the government, or prior approval as a refugee or asylee — you cannot obtain one on your own.
  • Employment-based green cards require your employer to prove no U.S. worker is available for the job and often take three to six years due to visa number limits.
  • Family sponsorship is faster for when ready relatives of U.S. citizens (spouse, parent, child under 21) but has long waiting periods for other relatives depending on your country of origin.
  • The diversity visa lottery is free to enter and open to nationals of countries with low U.S. immigration, but odds are extremely low and winners must still meet health and background requirements.
  • All green card paths require a medical exam, background check, and an interview with USCIS or a consular officer before approval.

Employment-Based Green Cards: What Your Employer Must Do

If you have a job offer from a U.S. employer, they can sponsor you for an employment-based green card. Your employer does not straightforward file paperwork on your behalf — they must first prove to the Department of Labor that they have tried to hire a U.S. worker for the position and cannot find one. This step is called labor certification, and it is mandatory for most employment categories. The employer must advertise the job, document their recruitment efforts, and show that no may have access to American applied or that all applicants were rejected for legitimate job-related reasons.

Labor certification alone takes four to six months on average, sometimes longer. After the Department of Labor approves it, your employer files an Immigrant Petition for Alien Worker (Form I-140) with USCIS. This petition establishes that the job exists, that you are may have access to, and that your employer is willing to sponsor you. Only after USCIS approves the I-140 can you move to the next step: adjusting your status to permanent resident (if you are already in the U.S.) or going through consular processing (if you are outside the U.S.).

The entire employment-based process typically takes three to six years from start to finish, depending on your country of origin and the visa category. Some countries have backlogs that stretch the timeline significantly. Your employer pays the filing fees, which range from a few hundred to several thousand dollars. You will also need to pass a medical exam and background check. During this time, you can usually remain in the U.S. on a work visa (such as an H-1B) while your green card petition is pending.

Family-Sponsored Green Cards: Who Can Sponsor You

If you have a close relative who is a U.S. citizen or green card holder, they can sponsor you for a green card. The rules differ sharply depending on the relationship and your relative's immigration status. A U.S. citizen can sponsor a spouse, parent, child (any age), or sibling. A green card holder can sponsor only a spouse or unmarried child. These are the only family relationships that may have access to.

The timeline varies dramatically. If your sponsor is a U.S. citizen and you are their spouse, parent, or child under 21, you are in the when ready relative category — there is no waiting list, and the process typically takes six months to two years. If you are a sibling or adult child of a U.S. citizen, or if your sponsor is a green card holder, you enter a preference category with a waiting list. Wait times for these categories range from several years to more than a decade, depending on your country of origin and current visa number availability. The State Department publishes a Visa Bulletin each month showing current wait times for each category and country.

Your relative must file a Petition for Alien Relative (Form I-130) with USCIS and prove the relationship with documents like a birth certificate, marriage certificate, or adoption papers. They must also show they have enough income to support you — the federal poverty guideline plus 125 percent — or have a co-sponsor. Once USCIS approves the petition, you proceed to adjustment of status or consular processing, just as in the employment route. Your relative pays the filing fees but not the medical exam or background check costs.

The Diversity Visa Lottery and Other Paths

The Diversity Visa Program is a lottery that makes 50,000 green cards available each year to nationals of countries with historically low immigration to the U.S. The process is free and takes about 15 minutes online. You enter during a specific registration period (usually October through November each year), and winners are selected at random. If your country is not on the may be able to access list — which excludes countries that have sent more than 50,000 immigrants to the U.S. in the past five years — you cannot enter.

The odds of winning are extremely low: roughly one in 200 to one in 500, depending on the number of entries that year. If you win, you must still pass a medical exam, background check, and interview. You must also show that you have a high school diploma or equivalent, or two years of work experience in an occupation that requires at least two years of training. Winners have a limited window to complete the green card process, usually within the same fiscal year.

Other paths exist for specific populations. If you have been persecuted in your home country based on race, religion, nationality, political opinion, or membership in a particular social group, you may be able to seek asylum in the U.S. After one year as an approved asylee, you can explore for a green card. Refugees — people who are outside their home country and unable to return due to persecution — can also explore for green cards after one year in the U.S. Victims of human trafficking, certain crime victims, and some religious workers also have pathways to green cards, though these are narrow categories with specific documentation requirements.

Medical Exam, Background Check, and the Interview

Regardless of which path you take, you must pass a medical exam performed by a USCIS-designated civil surgeon or panel physician. The exam includes a physical, blood tests, and a tuberculosis screening. Certain medical conditions can make you ineligible — these include communicable diseases, mental disorders with a history of harmful behavior, and drug addiction. If you have a condition that would normally disqualify you, you may be able to request a waiver, though approval is not may provide.

You will also undergo a background check that includes fingerprinting, a criminal history search, and a security clearance review. Any criminal conviction, even a misdemeanor, can result in denial. Immigration fraud, overstaying a visa, or working without authorization also create serious obstacles. If you have a criminal record or immigration violation, you should consult an immigration attorney before proceeding, as some issues may be waivable and others may not.

The final step is an interview with a USCIS officer (if you are adjusting status in the U.S.) or a consular officer at a U.S. embassy or consulate (if you are going through consular processing abroad). The officer will ask about your background, your relationship to your sponsor, your work history, and your intent to live permanently in the U.S. They will review your documents and may ask follow-up questions. The interview typically lasts 15 to 45 minutes. If everything is in order, you receive approval on the spot or within a few weeks.

Adjustment of Status Versus Consular Processing

Once your petition is approved, you have two options for completing the green card process: adjustment of status or consular processing. If you are already in the U.S. and your visa status allows it, you can adjust your status without leaving the country. You file Form I-485 with USCIS, attend a medical exam and interview at a local USCIS office, and receive your green card in the mail if approved. This route is faster and simpler because you do not have to travel.

If you are outside the U.S., or if your current visa status does not allow adjustment, you must go through consular processing. This means you go to a U.S. embassy or consulate in your home country (or another country where you are legally present) and complete the green card process there. You attend a medical exam at a panel physician and an interview with a consular officer. If approved, you receive an immigrant visa that you use to enter the U.S., and your green card is mailed to you after you arrive. Consular processing typically takes longer than adjustment because of embassy scheduling and mail delays.

Not everyone can adjust status. If you entered the U.S. illegally, you generally cannot adjust unless you are an when ready relative of a U.S. citizen or fall into another narrow exception. If you overstayed a previous visa, you may face a three-year or ten-year bar that prevents you from returning to the U.S. for that period after you leave. An immigration attorney can tell you which option applies to your situation.

Costs and Timeline Summary

The cost of a green card varies by path. Employment-based petitions cost the employer several hundred to several thousand dollars in filing fees, plus the cost of labor certification. Family-sponsored petitions cost the sponsor a few hundred dollars. The diversity visa lottery is free to enter. All paths require you to pay for a medical exam, which costs between $300 and $800 depending on your location and the provider. You may also need to pay for document translation, notarization, and legal representation if you hire an attorney.

The timeline also varies widely. when ready relatives of U.S. citizens can complete the process in six months to two years. Employment-based green cards take three to six years. Family preference categories and diversity visa winners can take anywhere from two to fifteen years depending on country and category. Asylum and refugee applicants can explore for a green card after one year in the U.S., so the total time from initial asylum filing to green card can be two to four years.

Once you receive your green card, it is valid for ten years (or two years if you obtained it through marriage and have been married for less than two years). You can renew it by filing Form I-90 with USCIS about six months before it expires. As long as you maintain your green card and do not commit certain crimes or engage in immigration fraud, you can live and work in the U.S. indefinitely.

Frequently Asked Questions

Can I work in the U.S. while my green card petition is pending?

It depends on your current visa status and the type of petition. If you are on an H-1B, L-1, or other work visa, you can usually continue working while your employment-based green card petition is pending. If you are on a student visa (F-1) or tourist visa (B-2), you cannot work legally unless you change your status to a work visa first. Family-sponsored petitioners cannot work unless they file a separate process for work authorization (Form I-765).

What happens if my employer or sponsor withdraws the petition?

If your employer withdraws an employment-based petition, your green card process stops. You may lose your work authorization if it was tied to the petition. If your family sponsor withdraws, the same applies. You can ask them to continue, but they are not required to. If you are on a work visa tied to your employer, you typically have a grace period (usually 10 to 60 days) to find a new employer or change your status before you must leave the U.S.

Do I need an attorney to get a green card?

You are not required to hire an attorney, but many people do because the process is complex and mistakes can delay approval or result in denial. An attorney can help you gather documents, file forms correctly, and prepare for your interview. If you have a criminal record, immigration violation, or complicated family situation, an attorney is strongly recommended. Legal aid organizations and immigration nonprofits offer free or low-cost consultations.

Can I travel outside the U.S. while my green card petition is pending?

Travel is risky while a petition is pending. If you leave the U.S., you may be unable to return, especially if you are in the middle of adjustment of status. If you are going through consular processing, you must travel to the embassy or consulate for your interview. If you must travel for an emergency, consult an immigration attorney first to understand the risks and whether you need advance permission from USCIS.

What is the difference between a green card and citizenship?

A green card makes you a lawful permanent resident — you can live, work, and study in the U.S. indefinitely, but you cannot vote or hold a U.S. passport. Citizenship gives you the right to vote, run for office, and hold a U.S. passport. You can explore for citizenship after holding a green card for three to five years (depending on how you obtained it), passing an English and civics test, and meeting other requirements. Citizenship is permanent and cannot be taken away except in rare cases of fraud.