Once a family or employment petition is approved, there are two ways to actually get the green card. Adjustment of status means applying from inside the United States, with USCIS. Consular processing means applying from abroad, through the National Visa Center and then a U.S. embassy or consulate. People often assume this is a strategic choice. Most of the time it is not — your physical location and your current immigration status decide it.
When adjustment of status applies
You can generally adjust status if you are physically present in the United States, you entered lawfully, and a visa number is immediately available in your category. Immediate relatives of U.S. citizens — spouses, parents, and unmarried children under 21 — always have a visa number available, which is why this route is common for people who married a citizen while already here on a valid visa.
The practical advantage is that you stay in the country while the case is pending. You can also apply for work authorization and, with advance parole, permission to travel. The disadvantage is time: adjustment cases often take longer than consular cases, and you are in a waiting period where your options are limited.
When consular processing applies
If you are outside the United States, consular processing is the only option. It is also the route for people who are physically in the U.S. but not eligible to adjust — for example, someone who entered without inspection, or whose category does not have a visa number available yet.
Consular cases move through the National Visa Center, which collects your civil documents and financial support paperwork, and then to an interview at the consulate in your home country. When the visa is issued, you enter the U.S. as a permanent resident and the physical card follows in the mail.
The part that catches people
Leaving the United States to attend a consular interview can trigger a bar on returning if you accrued unlawful presence before you left. More than 180 days of unlawful presence triggers a three-year bar; a year or more triggers a ten-year bar. Someone who was eligible to adjust and instead chose consular processing can walk into that problem by departing.
This is the single most important thing to work out before choosing a path. Waivers exist — the I-601A provisional waiver is designed for exactly this situation — but they add time, cost, and uncertainty, and they have to be filed and approved before you leave.
What we look at
When a client asks which route to take, we work through the same short list: manner of entry, current status, any period of unlawful presence, whether a visa number is available in the category, and whether you need to work or travel while the case is pending. Usually the answer is clear once those are on the table. When it is not, the difference between the two paths is worth thinking through carefully rather than defaulting to whichever sounds faster.