Quick answer
What is USCIS Form I-129S used for?
Use this form to classify alien employees as L-1 nonimmigrant intracompany transferees (executives, managers, or specialized knowledge professionals) under a previously approved blanket L petition.
What to prepare before filling I-129S
- 01
Confirm that Form I-129S, Nonimmigrant Petition Based on Blanket L Petition, matches the specific benefit, request, verification, or record you need.
- 02
Download the current Form I-129S and its separate instructions from USCIS, then compare the edition date before typing any answers.
- 03
For Form I-129S, collect the identity records, receipt or account numbers, dates, addresses, and prior immigration documents that support your answers.
- 04
Follow the official Form I-129S filing method and address; do not assume it can be submitted through a USCIS online account.
Current official filing details
The details below are condensed from the USCIS page reviewed on 2026-07-26. Follow the official page and instructions if they differ from this snapshot.
Edition date
01/20/25. You can find the edition date at the bottom of the page on the form and instructions.
Where to file
If the alien employee is outside the United States and requires a visa, they should present their Form I-129S (that you completed as their petitioning employer) to a U.S. consular officer. If they are a Canadian citizen, they may file Form I-129S (that you completed as their petitioning employer) directly with U.S.
Customs and Border Protection (CBP) at certain ports of entry and certain pre-flight inspection locations. If they are inside the United States, they may file their Form I-129, Petition for a Nonimmigrant Worker, together with Form I-129S (that you completed as their petitioning employer).
Filing fee
You can find the filing fee for Form I-129S by visiting our Fee Schedule page.
Initial evidence
Did you provide the following? A copy of the approval notice for the blanket L petition; and A letter detailing the employee’s dates of employment, job duties, qualifications, and salary.
The letter must also show the beneficiary worked for you for at least one continuous year out of the preceding three years in an executive, managerial, or specialized knowledge professional capacity.
Special instructions
Extension of Stay Requests for Beneficiaries Who Were Admitted to the United States Based on an Approved Blanket L Petition If you’re requesting an extension of stay for a beneficiary who was admitted to the United States based on an approved blanket L petition, you must file: Form I-129, Petition for a Nonimmigrant Worker; Form I-129S, Nonimmigrant Petition Based on Blanket L Petition (the 01/20/25 edition only); and A copy of the beneficiary’s previously approved Form I-129S. Change of Status Request for Beneficiaries Who Are in the United States If you’re requesting a change of status to L-1 based on an approved blanket L petition for a beneficiary who is currently in the United States, you must file: Form I-129, Petition for a Nonimmigrant Worker; and Form I-129S, Nonimmigrant Petition Based on Blanket L Petition (the 01/20/25 edition only).
Evidence of Petition Approval Needed When Traveling Along with a valid passport and visa (if applicable), the alien employee seeking admission pursuant to an approved blanket petition should carry the following documents when traveling to the United States: Form I-797, Notice of Action (approval notice);
Official I-129S downloads and filing links
Clerks AI PDF skill
Prepare the PDF from your source documents
Add the blank I-129S PDF and your records. Clerks AI helps ChatGPT or Claude Code map supported facts to fields and flag missing information for review. You still decide eligibility, verify every answer, and follow USCIS filing rules.
Get the AI PDF filling skillUSCIS Form I-129S FAQ
What is Form I-129S used for?
Use this form to classify alien employees as L-1 nonimmigrant intracompany transferees (executives, managers, or specialized knowledge professionals) under a previously approved blanket L petition.
How much does Form I-129S cost?
You can find the filing fee for Form I-129S by visiting our Fee Schedule page.
Can I file Form I-129S online?
The USCIS all-forms directory does not list a general online filing option for this form. Follow the official page for the required filing method.
Related USCIS form guides
Employment & business
Form I-129
Petition for a Nonimmigrant Worker
Travel, status & waivers
Form I-539
Application to Extend/Change Nonimmigrant Status
Other USCIS forms
Form G-28
Notice of Entry of Appearance as Attorney or Accredited Representative
Other USCIS forms
Form G-28I
Notice of Entry of Appearance as Attorney in Matters Outside the Geographical Confines of the United States
Other USCIS forms
Form G-325R
Biographic Information (Registration)
Other USCIS forms
Form G-1256
Declaration for Interpreted USCIS Interview
Source: U.S. Citizenship and Immigration Services. Independent guide by Clerks AI; not affiliated with USCIS and not legal advice.
Last researched 2026-07-26. Recheck the official page before filing.