Form I-129 guide: Petition for a Nonimmigrant Worker

Wang Law Firm, LLC · David Wang, Managing Attorney · Attorney-reviewed · Updated October 2026

Form I-129, officially the Petition for a Nonimmigrant Worker, is adjudicated by U.S. Citizenship and Immigration Services (USCIS). It is the core form a U.S. employer (and in some categories an agent or a qualifying individual) uses to seek temporary work-related status for a foreign employee. It covers H-1B specialty occupations, L-1 intracompany transfers, O-1 extraordinary ability, P athletes and entertainers, R-1 religious workers, and, when handled inside the U.S., extensions or changes of status for TN, E-1/E-2/E-3 and H-1B1.

The I-129 is the "first step" in the nonimmigrant work visa process: once USCIS approves it, if the beneficiary is in the U.S. and the petition requested a change or extension of status, the approval takes effect directly; if the beneficiary is abroad, they take the approval notice to a U.S. embassy or consulate to apply for a visa (by completing the DS-160) and then enter the U.S. The I-129 only addresses temporary work status and has nothing to do with a green card; green cards go through separate immigrant processes such as the I-140.

At a glance

Item	Details
Official name	Form I-129, Petition for a Nonimmigrant Worker
Agency	USCIS
Who files	A U.S. employer (the petitioner) on behalf of a foreign employee (the beneficiary); O and P petitions can be filed by a U.S. agent; for a change to or extension of E-1/E-2 status inside the U.S., a qualifying employer or the applicant personally can file
When to file	Depends on the category: cap-subject H-1B cases must first be registered during the registration period and selected; H petitions can be filed no earlier than 6 months before the intended start date, and other categories have their own advance-filing limits; extensions must be filed before the current status expires
Online filing	H-1B petitions can be filed online through a USCIS organizational account; whether other categories can be filed online, check the official page
Premium processing	Most categories can request premium processing through I-907; eligible categories are as published by USCIS
Common companion forms	The supplement for each category (see below), I-907, G-28, I-539 (for dependents' H-4, L-2 and similar status), G-1145 (optional); H-1B petitions must include a Labor Condition Application (LCA) certified by the Department of Labor
Official page	uscis.gov/i-129

Which categories the I-129 covers, and who files

Category	Brief description	What a beneficiary abroad does
H-1B	Specialty occupations, generally requiring a bachelor's degree or higher in a related field	The employer files the I-129; after approval, the beneficiary applies for a visa at a U.S. embassy or consulate
H-1B1	Specialty occupation visas for citizens of Chile and Singapore	Usually applies directly at a U.S. embassy or consulate; the I-129 is used for a change or extension inside the U.S.
H-2A / H-2B	Temporary agricultural workers / temporary nonagricultural workers; a temporary labor certification from the Department of Labor is required first	The employer files the I-129
H-3	Trainees and special education exchange visitors	The employer files the I-129
L-1A / L-1B	Intracompany transferees who are executives or managers / have specialized knowledge	The employer files the I-129; companies with Blanket L approval can process the case at a consulate using the I-129S
O-1 / O-2	People with extraordinary ability in the sciences, education, business, athletics, arts or film and television, and their essential support personnel	An employer or agent files the I-129
P-1 / P-2 / P-3	Athletes, entertainment groups, and artists and entertainers in exchange and cultural programs	An employer or agent files the I-129
Q-1	Participants in international cultural exchange programs	The employer files the I-129
R-1	Religious workers	The employer files the I-129
TN	Canadian and Mexican citizen professionals under the United States-Mexico-Canada Agreement (USMCA)	Canadian citizens can usually apply at a port of entry or preclearance location, while Mexican citizens must obtain a visa at a U.S. embassy or consulate; the I-129 can be used for an extension or a change of employer inside the U.S.
E-1 / E-2	Treaty traders / treaty investors and their qualifying employees	Applies directly at a U.S. embassy or consulate when abroad; the I-129 is used only for a change to E status or an extension inside the U.S.
E-3	Specialty occupation professionals who are Australian citizens	Usually applies directly at a U.S. embassy or consulate; the I-129 is used for a change or extension inside the U.S.

Points to note:

Mainland China is not an E-1/E-2 treaty country, so someone holding only a mainland China passport can't apply for E status based on that nationality; residents of Taiwan can apply for E-1/E-2. If you hold the nationality of another treaty country, see E-2 visa.
You can't file an O-1 "for yourself." An O-1 must be filed by a U.S. employer or a U.S. agent; an individual can arrange it through an agent but can't be the petitioner in their own name. See the O-1 guide.
Family members aren't on the I-129. H-4, L-2, O-3, E dependents and similar family members generally apply separately through I-539 (inside the U.S.) or for visas at a U.S. embassy or consulate.
The CNMI (Northern Mariana Islands) worker category uses the I-129CW, not this form.

Legal basis and eligibility for the main categories

The legal basis for the I-129 categories is mainly the nonimmigrant classifications under section 101(a)(15) of the Immigration and Nationality Act (INA 101(a)(15)) and section 214, with specific rules at 8 CFR 214.2. Below are only the core requirements of each category:

H-1B (8 CFR 214.2(h)): the position must be a specialty occupation, generally requiring a bachelor's degree or higher in a related field or its equivalent; the employer must first obtain a Labor Condition Application (LCA) certified by the Department of Labor, promising to pay at least the higher of the prevailing wage or the actual wage. The statutory annual cap on new H-1Bs is 65,000 per fiscal year, with an additional 20,000 reserved for holders of U.S. master's or higher degrees; employers such as universities and their affiliated nonprofits, nonprofit research organizations and government research organizations are cap-exempt. H-1B status is generally limited to 6 years in total, which can be extended in situations provided by AC21. See the H-1B guide.
L-1 (8 CFR 214.2(l)): within the 3 years before filing, the beneficiary must have worked full-time and continuously for 1 year at a related company abroad, and in the U.S. will serve as an executive or manager (L-1A) or use specialized knowledge (L-1B). L-1A is limited to 7 years and L-1B to 5 years. For petitions to open a new office, the initial approval period is usually 1 year, and on extension the business must show it is actually operating. See the L-1 guide.
O-1 (8 CFR 214.2(o)): must show extraordinary ability or extraordinary achievement in the field and sustained national or international acclaim. A written consultation (advisory opinion) from a relevant peer group, labor organization or management organization is generally required at filing.
TN (8 CFR 214.6): must be a citizen of Canada or Mexico, in an occupation on the list of professions in the USMCA appendix, with the education or credentials that occupation requires; the work must be temporary. See the TN guide.
E-1/E-2 (8 CFR 214.2(e)): must have treaty-country nationality; E-1 requires substantial trade with the U.S., and E-2 requires having invested, or being actively in the process of investing, a substantial amount in a real operating enterprise; employees must have the same treaty nationality as the enterprise and hold an executive, supervisory or essential-skills position.

How to use the supplements

Besides the main I-129 form, each category also requires the corresponding supplement. These are the main supplements in the current form; for exact applicability, follow the form instructions:

Supplement	Categories	Key points
E-1/E-2 Classification Supplement	E-1, E-2 (change or extension inside the U.S.)	Treaty country, ownership and nationality of the enterprise, volume of trade or amount of investment, type of employee position
Trade Agreement Supplement	Free trade agreement categories, such as TN and H-1B1	The agreement relied on and the type of request (new employment, extension, change of employer, etc.)
H Classification Supplement	H-1B, H-2A, H-2B, H-3 and other H categories	The beneficiary's prior time in H/L status in the U.S., position and education, nationality and recruitment information for H-2, the H-3 training program, etc.
H-1B and H-1B1 Data Collection and Filing Fee Exemption Supplement	H-1B, H-1B1	Employer size, whether the employer is H-1B dependent, the beneficiary's highest degree, wage, and whether the petition is cap-subject or exempt from certain statutory additional fees
L Classification Supplement	L-1A, L-1B	Work experience abroad, the relationship between the U.S. and foreign companies, new office, Blanket L information
O and P Classifications Supplement	O-1, O-2, P-1, P-2, P-3	Nature of the events and itinerary, the organization providing the consultation
Q-1 Classification Supplement	Q-1	Description of and attestations about the cultural exchange program
R-1 Classification Supplement	R-1	Religious organization information, the beneficiary's religious occupation and membership, employer attestation

A common mistake is omitting a supplement, or filing an H-1B case with only the H Classification Supplement and leaving out the "Data Collection and Filing Fee Exemption Supplement." Inconsistencies between the supplement and the main form (for example, in wage or work location) are also a common cause of RFEs.

Filing tips (by main part of the form)

Petitioner information (Part 1): the employer's name, federal employer identification number (FEIN), address and contact person. If an agent is filing, enter the agent's information as instructed.
Information about this petition (Part 2): includes the requested classification (such as H-1B or L-1A), the basis for classification (new employment, continuation of previously approved employment without change, change in previously approved employment, new concurrent employment, change of employer, amended petition, etc.), the requested action (notify a consulate or port of entry, change of status inside the U.S., or extension of stay), and the number of beneficiaries. Choosing the wrong "basis for classification" or "requested action" directly affects whether status can take effect after approval.
Beneficiary information (Part 3): name as in the passport; if in the U.S., enter the I-94 number, current status and its expiration date.
Processing information (Part 4): which consulate the beneficiary will apply at or which port of entry they will use; questions such as whether there are other immigration petitions, whether any petition has been denied, and whether the beneficiary is in removal proceedings must be answered truthfully.
Proposed employment and employer information (Part 5): job title, LCA number (H-1B), all work locations, wage, start and end dates, weekly hours, type of employer, number of employees and annual income. The 2026 edition of the I-129 asks for more detail about the position's requirements for education, field of study, experience, skills and supervisory duties, and for the occupational classification code; this information should be consistent with the occupational classification and wage level on the LCA.
Export control certification (Part 6): applies to categories such as H-1B, H-1B1, L-1 and O-1A. The employer must certify whether an export license is required to release controlled technology to the beneficiary; this item is often overlooked.
Signature: signed by an authorized person for the employer; unsigned petitions are rejected. If an attorney is retained, include a G-28.

Evidence and supporting documents

General: the beneficiary's passport, visa, I-94 (if in the U.S.), degree certificates and credential evaluation, résumé, employment contract or offer letter, and a description of the employer;
H-1B: the DOL-certified LCA, a job description (showing the position is a specialty occupation), and evidence that the degree field matches the position; for cap-subject cases, the selection notice information;
L-1: proof of the relationship between the U.S. and foreign companies (ownership structure, registration documents), evidence of the beneficiary's 1 year of work abroad (payroll records, appointment documents), organizational charts, and proof that both companies are operating; new office cases add the office lease, business plan and proof of funds;
O-1: evidence of achievements meeting the regulatory criteria (awards, media coverage, judging, original contributions, works, high salary, etc.), the consultation, the itinerary of events and contracts;
TN: proof of citizenship, the degree or license required for the profession, and an offer letter describing the position and its duration;
E-1/E-2: proof of treaty-country nationality, proof of ownership of the enterprise, and evidence of trade or investment (source of funds, movement of the invested funds, proof the business is operating).

Chinese-language degree certificates, company documents and letters must be accompanied by a complete English translation and a translator's certification; see Translation and notarization requirements for immigration documents.

How to file and fees

Where to file the I-129 depends on the category and the state where the employer is located; mail it according to the official "Where to File" page. H-1B petitions can be filed online through an organizational account. In August 2026 USCIS issued a framework rule allowing it, after advance notice, to require online filing for specific forms; before filing, check the official page for any new requirements.

Since April 2024, USCIS's new fee rule sets separate I-129 filing fees by category and adds an Asylum Program Fee for employers (with different amounts for small employers and nonprofits); H-1B and L-1 petitions may also carry statutory additional fees under certain conditions (such as the fraud prevention fee and the training fee). For exact amounts, rely on what USCIS currently publishes; see the USCIS fee schedule G-1055 and How to check U.S. immigration fees and processing times. The form is updated frequently: USCIS has already issued new editions of the I-129 more than once in 2026, and petitions on an edition that is no longer accepted will be rejected, so check the official page for the edition currently accepted before filing.

Recent H-1B policy changes (overview)

H-1B rules changed considerably in 2025–2026. The main changes include: the H-1B modernization rule effective January 2025 (which adjusted the definition of specialty occupation, cap-exempt employers, beneficiary-owned companies, and the F-1 "cap-gap" extension, among other things); a September 2025 presidential proclamation requiring an additional payment for certain new H-1B petitions (mainly involving beneficiaries outside the U.S.), on which USCIS has since issued successive clarifications and which is also the subject of litigation; and the wage-level-weighted H-1B selection rule, which applies starting with the fiscal year 2027 selection. The scope of and exceptions to these rules are complex and may still change. There have been many changes in recent years; verify the latest rules before filing, and rely on the current guidance on the USCIS H-1B page.

What happens after filing

Receipt notice (I-797C): the receipt shows the petition has been accepted. For a qualifying H-1B change of employer (portability), the beneficiary can generally start working for the new employer once the new employer files; with an extension filed on time inside the U.S., the beneficiary can continue working for the same employer for a certain period. The specific conditions must be checked case by case.
Review: I-129 beneficiaries generally don't need biometrics and aren't interviewed. USCIS may conduct site visits, especially in H-1B and L-1 cases.
Request for evidence (RFE): for H-1B, commonly about the specialty occupation, the employer-employee relationship and the work location; for L-1, about managerial duties and specialized knowledge; for O-1, about the evidentiary criteria. For how to respond, see What to do when you receive an RFE.
Decision: an approval notice (I-797A with a new I-94, or I-797B for consular visa processing). A beneficiary abroad takes the approval notice to a U.S. embassy or consulate for the visa interview; approval doesn't guarantee a visa, as the consular officer still reviews the case independently.

For processing times, check the USCIS processing times page; if you need a faster result, consider premium processing, see the Form I-907 guide. For checking case status, see How to check your USCIS case status and what each status means.

Common reasons for denial and options after a denial

The H-1B position is found not to be a specialty occupation, or the degree field doesn't match the position;
The position, wage or work location on the LCA and the I-129 don't match, or the wage level doesn't match the job requirements;
The L-1 beneficiary has less than 1 year of work abroad, or the position is in reality mainly about performing day-to-day tasks; at a new office extension, the business isn't large enough;
The O-1 evidence doesn't meet the regulatory criteria, or the consultation is missing;
At a change of status, the beneficiary has already lost lawful status (in which case only "consular notification" may be approved, and the beneficiary must leave the U.S. to apply for a visa).

After a denial, the employer can, depending on the circumstances, appeal to the Administrative Appeals Office (AAO) or file a motion through I-290B, or strengthen the case and refile. If the beneficiary loses status as a result, assess the timing of departure and other status options as soon as possible to avoid accruing unlawful presence. A denied I-129 usually also affects family members' I-539s.

How the I-129 differs from similar forms

Form	Who files	Purpose
I-129	An employer or agent (with exceptions for E status inside the U.S.)	Petitions, extensions and changes for nonimmigrant work status
I-539	The beneficiary personally	Extensions or changes of non-work status, such as a B-2 extension, a change to F-1, or H-4/L-2 dependent status
I-140	An employer or a self-petitioner	Employment-based immigrant (green card) petition, a separate track from the temporary status under the I-129
I-907	Whoever filed the underlying petition	Premium processing for the I-129 and certain other petitions; not an independent status application in itself
DS-160	The visa applicant	Completed when applying for a visa at a U.S. embassy or consulate after the I-129 is approved

Frequently asked questions

Can I file an I-129 for myself?

Generally no. As a rule, the I-129 is filed by a U.S. employer (or, for O and P categories, an agent). The main exception: for a change to or extension of E-1/E-2 status inside the U.S., the applicant may file personally in qualifying situations. Even if you are a shareholder of the company, an H-1B or L-1 is still filed by the company as the employer, and a genuine employment relationship must be shown.

If my I-129 is approved, will I definitely get a visa?

Not necessarily. A beneficiary abroad still has to attend a visa interview at a U.S. embassy or consulate, where the consular officer independently reviews whether the visa requirements are met and whether any grounds of inadmissibility apply. I-129 approval is a prerequisite for the visa, not a guarantee.

Should I choose "change of status" or "consular notification"?

If you are in the U.S. and maintaining lawful status, you can usually choose a change of status inside the U.S., and the status takes effect directly upon approval; if you plan to travel abroad, or your status in the U.S. already has problems, you may need to choose consular notification and then leave to apply for a visa. The choice affects when you can start working and your travel plans, so decide before filing.

Do I need to go through the H-1B lottery again to change employers?

Someone who has already been counted against the H-1B cap generally doesn't need to be selected again when moving to a cap-subject employer within the 6-year limit; the new employer files a new I-129. But if your H-1B was obtained with a cap-exempt employer, moving to a cap-subject employer usually requires selection. This depends on the individual case.

Can an I-129 get premium processing? Does it guarantee the result?

Most I-129 categories, such as H-1B, L-1, O-1, TN and E, can get premium processing. Premium processing only guarantees that USCIS will take action within the time limit, which may be an approval, an RFE or a denial; it doesn't guarantee approval. For eligibility and fees, rely on what USCIS currently publishes; see the Form I-907 guide.

I'm in the U.S. on E-2. Do I need to refile if I change the enterprise I invest in?

E status is tied to a specific enterprise and position, and a substantive change usually requires a new application; you can file an I-129 for the change inside the U.S., or go abroad to a U.S. embassy or consulate for a new E visa. Which changes count as "substantive" must be judged case by case.