- A passport is your identity and nationality document, issued by your home country. It proves who you are and is generally required for international travel.
- A visa is permission to request entry, not a guarantee of it. According to USCIS, a visa does not grant the bearer the right to enter the United States; Customs and Border Protection (CBP) officers decide admission at the port of entry.
- You usually need both to travel to the U.S. The visa is placed inside your passport. You can hold a passport with no visa, but not a U.S. visa without a passport.
- A visa is not your status. Your authorized stay is recorded on your Form I-94 arrival record, not on the visa foil.
- There are two visa families: immigrant visas (for permanent residence) and nonimmigrant visas (temporary stays for work, study, or visits), as defined by USCIS.
- For work visa holders, the visa reaches the border, but the petition behind it (O-1, H-1B, L-1, TN, E-2, E-3) and the I-94 control what the holder can do once admitted.
If you are moving talent across borders or relocating to the United States for work, two documents sit at the center of every trip: your passport and your visa. They do different jobs. A passport proves who you are and what country you belong to. A U.S. visa gives permission to travel to a U.S. port of entry and request entry. This guide explains how the two work together and clears up a common point of confusion for work visa holders: a visa is not the same as your status.
What Is a Passport?
A passport is a travel and identity document issued by a national government. It establishes the holder's identity and citizenship and is the baseline document border officials use to confirm identity at an international boundary.
USCIS describes a foreign passport as a travel and identity document issued by a foreign government that proves a person's identity and foreign citizenship or nationality, and that is often required for travel between countries. A foreign passport on its own does not establish that the holder has any U.S. immigration status. What gives it that weight is the admission stamp a CBP officer adds at entry, which serves as evidence of the status reflected on the stamp.
For U.S. citizens, the Department of Homeland Security states that U.S. citizens must obtain a passport issued by the U.S. Department of State to travel overseas. DHS also instructs travelers to present the passport to the CBP officer on arrival and to carry it rather than pack it in checked luggage.
Passport Book vs. Passport Card
Under the Western Hemisphere Travel Initiative, DHS recognizes several documents that prove identity and citizenship for travel within the Western Hemisphere, which covers Canada, Mexico, some Caribbean countries, and Bermuda. The passport card was created under this framework for land and sea border crossings within that region, while a passport book is required for international air travel. The initiative is a joint DHS and Department of State plan that implemented a 9/11 Commission recommendation and the Intelligence Reform and Terrorism Prevention Act of 2004, requiring travelers to present a passport or other accepted document showing identity and citizenship when entering the United States.
What Is a Visa?
A visa is a travel document issued by a country to a traveler that grants them permission to travel to its border and request entry under a specific category. A U.S. visa does not by itself allow someone to live or work in the United States; it allows the holder to show up and request admission to the U.S.
USCIS explains that a U.S. visa allows the bearer to apply for entry to the U.S. in a certain classification, such as student (F), visitor (B), or temporary worker (H). The visa does not grant the bearer the right to enter the United States. The Department of State adjudicates visas at U.S. embassies and consulates abroad, and CBP officers determine the admission, length of stay, and conditions of stay at the port of entry.
Three different agencies touch the journey: the Department of State issues the visa abroad, USCIS approves the underlying petition for most work categories, and CBP admits the traveler at the border. A valid visa is necessary, but the CBP officer makes the final call.
Immigrant vs. Nonimmigrant Visas
Visas fall into two broad families. Nonimmigrant visas are for temporary stays, including work, study, tourism, business, and medical treatment. USCIS defines a nonimmigrant as a person admitted to the United States for a specific temporary period of time. Immigrant visas are for people intending to live in the U.S. permanently and lead to lawful permanent residence, commonly known as a green card.
The nonimmigrant family includes the temporary work visas most employers sponsor: H-1B specialty occupation, O-1 extraordinary ability, L-1 intracompany transferee, TN for Canadian and Mexican professionals, E-2 treaty investor, E-3 for Australians, and H-1B1 for Chile and Singapore. The immigrant family includes the employment-based green cards such as EB-1 and EB-2 NIW.
Passport vs. Visa: The Core Differences
The simplest way to keep the two straight: a passport is about who you are, and a visa is about where you are allowed to go.
- Issuing authority. A passport comes from the traveler's own government, the country of citizenship. A U.S. visa comes from a U.S. consular officer at an embassy or consulate abroad.
- Purpose. A passport proves identity and nationality and allows international travel. A visa grants permission to travel to a U.S. port of entry and apply for admission in a specific classification.
- Guarantee of entry. A passport is identification. A visa does not guarantee entry; per USCIS, CBP officers decide admission at the border.
- Where it lives. A passport is a standalone booklet or card. A visa is printed as a foil and affixed inside the passport, which is why the two travel together.
- What controls the stay. Neither document sets the authorized period of stay. As USCIS notes, DHS immigration inspectors record the terms of admission on the Arrival and Departure Record, the I-94, which governs how long a person may remain.
How the Two Documents Work Together
Because the visa lives inside the passport, the two function as a pair when traveling to the United States. A foreign national generally needs a valid passport and, unless visa-exempt, a valid U.S. visa.
USCIS explains that a CBP officer issues Form I-94 to nonimmigrant visitors at entry, and the visitor must leave the U.S. on or before the departure date reflected on that record. The I-94 shows either an "Admit Until" date or "D/S," meaning duration of status. That date, not the visa's expiration, indicates how long a person may legally stay. A visa can expire while the holder remains lawfully present, and a visa can stay valid long after a given trip ends.
For new permanent residents who arrive through consular processing, the immigrant visa does double duty. Once a CBP officer endorses the machine-readable immigrant visa in the passport, it serves as temporary proof of permanent residence for one year, bridging the gap until the physical green card arrives.
Visa Is Not the Same as Status
This is the single most important distinction for work visa holders. A visa is a travel document that reaches the U.S. border. Status is the authorized presence inside the country, governed by Form I-94 and the petition the employer filed. According to USCIS, failing to maintain nonimmigrant status can result in being barred from returning to or removed from the United States. The authorized status and its expiration appear as the "Admit Until" date on Form I-94. A valid visa foil does not protect a person whose status has lapsed.
What This Means for Employees and Employers
For a sponsored employee, two timelines matter. The visa foil governs re-entry after international travel, while the I-94 governs how long the stay and work authorization last. The visa foil does not determine lawful status in the U.S. so it can expire while the worker is inside the U.S. The person may remain and work as long as the I-94 and petition stay valid, though a new visa stamp is needed if the person travels internationally so that they can reenter the U.S.
For employers, the distinction shapes compliance. The visa is a consular matter handled abroad, while maintaining status is an ongoing obligation tied to the approved petition, the job, and the worksite. For specialty occupations, the employer must obtain a Department of Labor certified Labor Condition Application before filing the petition, and DOL rules require paying the higher of the prevailing wage or the actual wage paid to similarly employed workers. Changes to the role, salary, or location can affect both the petition and the worker's status, even though they have no effect on the visa already in the passport.
Consular Processing vs. Adjustment of Status
Whether a person is inside or outside the United States when seeking permanent residence determines which path applies. USCIS explains that adjustment of status is the process to apply for lawful permanent resident status from within the United States, while a person outside the country obtains an immigrant visa abroad through consular processing. In consular processing, the immigrant visa is issued at a U.S. embassy or consulate, and the person becomes a permanent resident on CBP admission. In adjustment of status, the person files Form I-485 from inside the U.S. with no requirement to leave.
As of June 2026, USCIS Policy Memorandum PM-602-0199 (issued May 21, 2026, and in effect at the time of writing) directs officers to treat adjustment of status as a discretionary benefit weighed under the totality of the circumstances. Adjustment of status has always been discretionary by statute under INA 245(a), so the memorandum reframes how officers exercise that discretion rather than changing who is eligible, and it does not by its terms require consular processing. USCIS has indicated the policy is applied case by case. Dual-intent categories such as H-1B and L-1, which allow a worker to pursue permanent residence while maintaining nonimmigrant status, are generally less affected, though not entirely exempt from added scrutiny. This guidance is recent, interpretive rather than regulatory, and may be subject to change or legal challenge.
Why Employers and Employees Work With Alma
Alma is an attorney-led, technology-enabled immigration law firm built for high-skilled talent and company-sponsored visas. Alongside a dedicated attorney, it provides a platform that tracks petitions, deadlines, and I-94 dates in one place. As of June 2026, Alma uses transparent flat-rate pricing: an O-1 is $8,000, an H-1B Cap case is $3,500, and an EB-2 NIW is $10,000, with RFE responses, administrative costs, and up to three attorney consultations per matter included. For companies managing larger foreign-national populations, Alma offers volume discounts and monthly pricing models for growth and enterprise clients.
Common Mistakes to Avoid
A few myths cause real problems for travelers and sponsored employees.
- "A visa guarantees entry." It does not. USCIS states that a visa does not grant the right to enter, and CBP decides admission at the border.
- "My visa is my status." It is not. Status is set by the I-94 and petition, not the visa foil.
- "If my passport expires, my visa is void." A valid visa in an expired passport stays valid until the visa's own expiration date. The traveler carries both the old passport with the visa and a new valid passport.
- "USCIS issues my visa." The Department of State adjudicates visas abroad, USCIS approves petitions, and CBP admits travelers.
- "U.S. citizens need a U.S. visa." They do not, but per DHS they must carry a U.S. passport to travel overseas.
Frequently Asked Questions
Yes. A passport is a home country's identity and travel document, and a person can hold one with no U.S. visa at all. U.S. citizens never need a U.S. visa to travel, though they need a U.S. passport to go overseas and may need a visa from the destination country. A foreign national might also qualify for visa-exempt travel in limited circumstances, but most need a visa to enter the United States.
No. U.S. visas are printed as a foil and placed inside a valid passport. Because the two are physically linked, a passport is required before a consular officer can issue the visa, which is also why the passport must be valid for the intended period of travel at the time of application.
A nonimmigrant visa permits temporary entry for a specific purpose, such as work or study. An immigrant visa allows travel to the U.S. to become a lawful permanent resident. A green card, formally Form I-551, is the physical proof of permanent residence issued after admission or approval. In short, a visa is permission to travel and request entry, while a green card is evidence of an ongoing immigration status.
The visa reaches the port of entry. Status is the authorized presence inside the U.S., recorded on Form I-94 and tied to the petition behind the category. A visa can expire while status remains valid, and status can lapse even though the visa foil still looks current. The "Admit Until" date on the I-94 indicates how long the stay is authorized.
The visa remains valid until its printed expiration date. It can still be used, but you must carry both the expired passport, which contains the visa, and a new valid passport. CBP officers reference the visa in the old book while admitting the traveler on the new one. Both passports should be from the same country, and the visa must be undamaged.
