Practical, plain-English explainers for comparing routes, planning a move and getting ready for the work ahead. Route-specific eligibility still needs its own current check.
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O-1A visa: what it is, who files, and how the process works
O-1A is a temporary US classification for extraordinary ability in science, education, business or athletics. Who files, the evidence, fees, timing and family.
O-1A criteria: the eight types of evidence and how USCIS weighs them
The O-1A evidence rules: a one-time major award or three of eight criteria, comparable evidence, and the final merits review USCIS applies to the whole record.
Who can file an O-1A petition: a US employer, a US agent or a foreign employer
Only a US employer, a US agent, or a foreign employer through a US agent can file for O-1A. What each must provide, the advisory opinion, and who signs.
O-1A for startup founders: filing through your own company
How O-1A works for a founder: your own US company as petitioner, the agent option, and how USCIS weighs startup funding, salary, equity and a founder's role.
O-1A letters: expert recommendation letters and the advisory opinion
Two kinds of O-1A letter: expert letters that support the criteria, and the required advisory opinion from a peer group. What each must contain and what USCIS does.
How long O-1A lasts: validity, extensions, job changes and grace periods
O-1A validity up to 3 years, the 10-day windows, extensions, amended petitions, changing or adding employers, and the 60-day grace period, from official sources.
O-1A filing: Form I-129, government fees, premium processing and where to file
O-1A government fees as listed on 19 October 2026, who signs Form I-129, where it goes, how premium processing on Form I-907 works, and how early to file.
After the O-1A petition is approved: DS-160, visa interview and entry to the US
What happens after USCIS approves an O-1A petition: the DS-160, the consular interview, when the visa can be used, entry and the I-94, Canadians and O-3 family.
How does the O-1B visa work for artists, film and television?
The O-1B for the arts and for film and TV: distinction versus extraordinary achievement, the six criteria, union consultation and how it differs from O-1A.
O-2 and O-3 visas: support staff and family of an O-1
O-2 support staff for O-1 artists and athletes, why O-1A founders and scientists cannot bring O-2 staff, the separate petition, and what O-3 family members can do.
E-2 treaty investor visa: what it requires and how the application works
The E-2 lets a treaty-country national develop and direct a US business they have invested in. The requirements, forms, fees, family rules and where cases stall.
E-2 investment rules: committed capital, proportionality and source of funds
What counts as an E-2 investment: capital at risk and irrevocably committed, the proportionality and marginality tests, lawful source of funds, and the usual evidence.
Which countries have an E-2 treaty with the United States?
The full list of E-2 treaty countries with entry-into-force dates, what each footnote changes, and how investor and company nationality must match the list.
E-2 nationality and ownership: the 50 percent rule, dual nationals, company owners and control
How E-2 nationality works for the investor and the business: the 50 percent rule, dual nationals, corporate owners, 50/50 partners and develop and direct.
E-2 real and operating enterprise and the marginality test: what counts and what doesn’t
What makes an E-2 business real and operating, why passive investments fail, and how the marginal-enterprise test and its five-year income window work.
Applying for an E-2 visa at the US Embassy in London, step by step
The London E-2 process as of October 2026: company registration, DS-160, the $315 fee, document sections, review, interview and courier return of passports.
Changing to E-2 status inside the US versus getting an E-2 visa abroad
Form I-129 with the E supplement at USCIS versus an E-2 visa at a consulate: who can use each, what each gives you, the fees, and why a change of status is not a visa.
E-1 treaty trader visa: substantial trade between the US and your treaty country
The E-1 is for treaty-country nationals carrying on substantial trade, mostly with the US. What counts as trade, the over-50% rule, the process, fees and family.
Can you work for an E-1 or E-2 treaty business as an employee?
How E-1 and E-2 employee visas work: matching treaty nationality, the 50 percent ownership rule, executive or essential roles, intent to depart, forms and fees.
The 10 EB-1A criteria: what each one means and what evidence USCIS looks at
Each of the ten EB-1A evidence criteria in plain language, the evidence USCIS describes for each, the one-time award alternative and when comparable evidence works.
EB-1A final merits determination: what USCIS decides after three criteria are met
How USCIS's two-step EB-1A review works: the final merits determination, sustained acclaim, continuing work in your area and the preponderance standard.
How the EB-2 National Interest Waiver (NIW) green card works
The EB-2 National Interest Waiver explained: the EB-2 basis, the three Dhanasar prongs, self-petitioning without labor certification, Form I-140 and fees.
The Dhanasar test for a National Interest Waiver: the EB-2 threshold and the three prongs
How USCIS applies Matter of Dhanasar: the EB-2 threshold first, then each of the three prongs, the evidence that supports them and what the 2025 policy updates changed.
Can a founder get a National Interest Waiver? How USCIS treats entrepreneurs and startups
How the USCIS Policy Manual treats entrepreneurs under the NIW: the EB-2 basis, the business plan, ownership and role, funding, and the evidence USCIS lists.
Form I-140 for EB-1A and NIW: who files, where, the fees and premium processing
Filing Form I-140 for EB-1A or an NIW: self-petitioning, online or mail, Lockbox addresses, fees as of 19 October 2026, premium processing and what the receipt means.
Can my spouse and children get green cards with my EB-1A or NIW?
How spouses and children immigrate with an EB-1A or NIW principal: who counts as a child, accompanying or following to join, the CSPA, where each person applies and fees.
Adjustment of status or consular processing: the two ways to finish a green card
How adjustment of status in the US differs from consular processing abroad: who can use each, what INA 245 requires, and what changes for work and travel.
The immigration medical exam for a green card: who needs it, who does it and what it covers
Who needs the green card medical exam, how panel physicians abroad and civil surgeons in the US differ, which vaccinations are required, and how long results last.
Form I-864, the affidavit of support: who must file, who is exempt and what the sponsor promises
Who needs Form I-864, who is exempt, the sponsor’s 125% income test, joint sponsors, assets, and the employment cases where a relative’s petition triggers it.
Immigrant visa fees: what the State Department and USCIS charge, per person
The State Department immigrant visa fee ($325 family, $345 employment), the $235 USCIS Immigrant Fee, when each is paid, and the costs that are not government fees.
How family-based green cards work: immediate relatives, F1 to F4 and the I-130
Who can sponsor a relative for a US green card, how immediate relatives differ from the F1 to F4 preference categories, and what happens after the I-130.
Immediate relative or family preference: which family green card category applies?
Who counts as an immediate relative of a US citizen, the F1 to F4 preference categories and their annual limits, and what the petitioner files with USCIS.
L-1A for managers and executives, L-1B for specialized knowledge: the one-year rule, related companies, new offices, blanket petitions, stay limits and L-2 family.
L-1A for managers and executives: what counts as managerial or executive capacity
How USCIS decides whether an L-1A job is managerial or executive: personnel and function managers, the one-year-in-three rule, evidence, the 7-year limit and EB-1C.
L-1B specialized knowledge: what USCIS means by it and how it is shown
What counts as specialized knowledge for an L-1B, the factors and evidence USCIS uses, the five-year limit, and the rules for working at a client’s site.
L-1 new office petitions: opening a US office with an L-1 transfer
How an L-1 works for a US office in its first year: secured premises, the investment and structure the regulation lists, the one-year limit and what the extension needs.
The H-1B explained: the specialty occupation degree test, the employer's labor condition application, cap registration and selection, Form I-129, stay limits and H-4.
How do the H-1B cap, registration and lottery work?
The H-1B cap: 65,000 regular and 20,000 advanced degree numbers, cap-exempt employers, online registration, wage-weighted selection and the filing window.
Changing H-1B employers: portability, new petitions, the cap and the six-year limit
How an H-1B worker changes employers: the new petition, starting work on filing under portability, when the cap applies again, and the six-year limit and its exceptions.
TN status for Canadians and Mexicans: who can use it and how entry works
TN lets Canadian and Mexican citizens work in listed USMCA professions. How Canadians and Mexicans apply, the job letter, the 3-year periods, intent and TD family.
The TN professions list: which jobs qualify and what credentials each needs
The USMCA professions list as 8 CFR 214.6(c) sets it out, the minimum degree, license or experience for each, and the extra rules for nurses and other health workers.
E-3 visa for Australians: specialty occupation work, the LCA and family
The E-3 lets Australian nationals work in a US specialty occupation. The degree test, the employer’s LCA, consular and USCIS steps, two-year stays, fees and spouse work.
How do P visas work for athletes, entertainment groups and cultural performers?
P-1A athletes, P-1B entertainment groups, P-2 exchanges, P-3 culturally unique programs and P-4 family: who files, what must be shown, union consultation and time limits.
A and G visas: diplomats, foreign officials and international organization staff
How A and G visas work for diplomats, foreign officials and international organization staff, their families and personal employees, including work for dependents.
Can your spouse and children come with you on an O-1 or E visa?
O-3 and E dependants: who counts, separate applications, per-person fees, whether a spouse can work, study, ties to the principal, and children turning 21.
Can an E, L or O spouse work in the US? E-2S, L-2S, O-3 and the work permit
Which spouses of E, L-1 and O-1 workers can work in the US, how they prove it with an I-94 code or EAD, where the official texts differ, and why O-3s cannot work.
Form I-539: how to extend or change your nonimmigrant status in the US
What Form I-539 is for, who files it and who uses an employer's Form I-129 instead, extending versus changing status, filing on time, fees and biometrics.
US visitor visas and ESTA: what B-1, B-2 and the Visa Waiver Program allow
B-1 business and B-2 tourism visits, the Visa Waiver Program and ESTA compared, how long visitors can stay, and why visitor status is not a way to start working.
What can you do on a B-1 business visa? Allowed activities and the line with work
What a B-1 business visitor may and may not do under State Department rules, where business ends and work begins, how long a stay lasts and how extensions work.
Visa Waiver Program and ESTA: who can use it, the 90-day limit and when you need a visa
How the Visa Waiver Program and ESTA work: passport and travel rules, the 90-day limit, no extension or change of status, and who needs a visitor visa instead.
How do US student visas work? F-1, M-1 and J-1 explained
F-1 academic, M-1 vocational and J-1 exchange visas: the Form I-20 or DS-2019, SEVIS and the I-901 fee, the visa interview, work limits and F-2, M-2 and J-2 family.
F-1 OPT, STEM OPT and CPT: how practical training works for international students
How F-1 students work through curricular practical training (CPT), optional practical training (OPT) and the 24-month STEM extension: limits, deadlines and fees.
J-1 exchange visitors: sponsors, program categories, J-2 family and the two-year home residence rule
How the J-1 exchange visitor visa works: designated sponsors and Form DS-2019, the program categories, J-2 spouses and work, and the two-year home residence rule.
Visa or status? How the I-94 decides how long you can stay in the US
A petition, a visa, admission and status are separate steps. How the I-94 sets your stay, what an expired visa means, and why the I-94 date matters most.
The DS-160 and the US visa interview: what to prepare and what happens next
What the DS-160 asks for, who must attend a visa interview and who may not, what happens at the interview, and what an issued visa does and does not do.
Visa refused under 221(g) or 214(b): what each means and what comes next
What a 221(g) refusal and administrative processing mean, what the 214(b) presumption of immigrant intent asks of you, and how a refused visa can be revisited.
E-2 or L-1: how do the treaty investor and intracompany transfer routes compare?
E-2 and L-1 compared for business owners and companies expanding to the US: who files, investment versus a year abroad, new offices, stay limits, spouses and fees.
E-2 or O-1A: how do the two routes compare for founders and investors?
E-2 and O-1A side by side for founders: who files, investment versus acclaim, nationality, ownership, evidence, length of stay, family work rules and fees.
E-3 or H-1B: how do the two specialty occupation visas compare for Australians?
E-3 and H-1B side by side for Australians: the shared specialty occupation test, petitions, the caps, stay limits, spouse work, green card plans and fees.
EB-1A or National Interest Waiver: how do the two self-petition green card routes compare?
EB-1A and the EB-2 National Interest Waiver side by side: the legal tests, evidence, self-petitioning, premium processing, visa availability, family and fees.
O-1A or H-1B: how do the two US work visas compare?
O-1A and H-1B side by side: who files, acclaim versus a specialty occupation, the H-1B cap and lottery, length of stay, family work rules, green card plans and fees.
O-1A or National Interest Waiver: how does a temporary work visa compare with a self-petition green card?
O-1A and the EB-2 National Interest Waiver compared: temporary versus permanent, who files, acclaim versus a proposed endeavor, evidence, timing, family and fees.
TN or H-1B: how do the two professional work visas compare for Canadians and Mexicans?
TN and H-1B side by side for Canadian and Mexican professionals: the profession list, degree tests, cap and lottery, applying, stay limits, family and fees.