Short answer: An approved I-140 does not by itself let you move to a new employer while keeping the same employment-based adjustment case. The usual AC21 portability route requires an approved (or ultimately approved) EB-1, EB-2 or EB-3 I-140, a properly filed Form I-485 that has remained pending for at least 180 calendar days when U.S. Citizenship and Immigration Services (USCIS) receives your portability request, and a new permanent job in the same or a similar occupational classification. You normally request that change with Form I-485 Supplement J.
The 180-day clock starts with the I-485 receipt date, not the I-140 approval date. Priority-date retention is a separate protection: keeping an earlier priority date does not, by itself, make any new job eligible for your pending adjustment application.
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What must be true before you change employers?
AC21 portability under Immigration and Nationality Act section 204(j) is designed for an employment-based adjustment applicant whose original job is no longer the job they intend to take. USCIS generally looks for all of the following conditions:
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- Your Form I-485 was properly filed with USCIS and has been pending for at least 180 calendar days when USCIS receives the portability request.
- The I-485 is still unadjudicated when USCIS receives that request.
- You have a bona fide, permanent job offer from the same petitioner, a different employer or, in the USCIS Policy Manual’s description, a self-employment arrangement.
- The new position is in the same or a similar occupational classification as the position described in the underlying I-140.
- You affirmatively request portability, ordinarily by filing Form I-485 Supplement J.
Meeting only one or two of these conditions is not enough. An I-140 approval without a qualifying pending I-485, or an I-485 that has been pending fewer than 180 days, does not create AC21 portability eligibility.
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Three protections that people often confuse
Your case can involve three different legal questions. Treating them as one is a common source of costly mistakes.
| Question | AC21 portability for a pending I-485 | Retention after I-140 withdrawal or business termination |
|---|---|---|
| What is preserved? | The ability to rely on a qualifying new permanent job offer for an eligible pending adjustment case. | The earlier priority date for use with a later qualifying employment-based petition. |
| Main timing rule | The I-485 must have been pending at least 180 days when USCIS receives the portability request. | For continued I-140 validity after withdrawal or business termination, USCIS generally applies a 180-day rule measured from I-140 approval or from associated I-485 pendency, subject to the applicable facts. |
| Is a qualifying job required? | Yes. The new job must be permanent and in the same or a similar occupational classification. | No. Priority-date retention does not itself provide a qualifying job offer. |
| USCIS action or form | Form I-485 Supplement J is the standard portability request. | A later employment-based petition may be needed to use the retained date. |
| Important limit | The petition must be approved or ultimately approved, and every other portability condition must be met. | Substantive revocation grounds can still defeat the petition; retaining a date does not guarantee adjustment approval. |
In practical terms, an approved I-140 can remain useful even after an employer withdraws it, but that does not mean the I-140 automatically follows you to a new company. Portability is a request to use a qualifying new offer for the pending I-485; it is not a transfer of the old petition.
How the 180-day portability clock works
USCIS measures the AC21 period from the date it receives a properly filed I-485. It does not count from the I-140 approval date, the date you started the original job, or the date an employer signed a new offer.
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“For portability purposes, counting the number of days the adjustment application has been pending begins on the day the applicant properly filed the adjustment application with USCIS and includes every subsequent calendar day until USCIS receives the applicant’s request to port (so long as the application remains unadjudicated).”
That means the relevant endpoint is also important: USCIS must receive the portability request after the 180-day threshold, while the I-485 remains pending. Filing before day 180 does not become valid merely because USCIS reviews the submission later.
Use your I-485 receipt date, not your I-140 date
- Find the receipt notice for your employment-based Form I-485.
- Identify the “received date” shown by USCIS. That is the date from which the calendar-day count begins, assuming the filing was properly filed.
- Count 180 calendar days, including weekends and holidays.
- Confirm that USCIS has not already approved, denied or otherwise finished the I-485 before it receives your portability request.
- Keep proof of delivery for Supplement J and any accompanying response so you can establish when USCIS received the request.
If your I-485 has been pending fewer than 180 days, an approved I-140 generally does not remain valid for portability to a new job under this route. Do not rely on the age of the I-140 approval to substitute for the I-485 period.
What counts as the same or a similar occupation?
The new offer must be compared with the occupation described in the original I-140, not simply with your employer’s internal title. USCIS evaluates whether the positions share an occupational classification and substantially related duties. Titles can change between companies; the underlying work, required skills and classification are more important.
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- Core duties and the percentage of time devoted to them.
- Required education, licenses, certifications and specialized knowledge.
- Skill set, tools, technologies and industry context.
- Standard occupational classification or other classification information used in the petition.
- Level of responsibility, supervisory scope and seniority.
- Whether the new position is permanent and full-time or otherwise meets the terms required by the employment-based category.
A modest change in title, reporting line, work location or compensation does not automatically defeat portability. A fundamentally different occupation can. Because USCIS decides the comparison from the evidence, preserve the original I-140 job description and prepare a detailed explanation of how the new role relates to it.
How to request portability with Supplement J
USCIS requires Form I-485 Supplement J for portability requests made on or after January 17, 2017. The form documents the new offer and allows USCIS to evaluate the same-or-similar occupation requirement.
- Confirm the threshold. Verify the I-485 receipt date, calculate at least 180 calendar days, and confirm the case is still pending.
- Gather the original case records. Collect the I-140 approval notice, I-485 receipt notice, the labor-certification or petition job description when available, and notices showing any request for evidence or transfer.
- Obtain a detailed permanent offer. The new employer should describe the job title, duties, worksite, start expectations, compensation and permanent nature of the position. The offer should be specific enough for USCIS to compare occupations.
- Complete Supplement J accurately. Use the current USCIS edition and follow the filing instructions in effect when you submit. Identify the pending I-485 and the new employer or qualifying self-employment arrangement.
- Prepare supporting evidence. Include evidence connecting the new role to the original occupation, such as duty descriptions, organizational information, credentials and a statement explaining similarities. Include the I-485 receipt and I-140 approval evidence.
- File at the correct location. USCIS filing addresses and edition requirements can change. Use the address and instructions published with the current form rather than an old filing guide.
- Keep delivery proof. Retain the courier or postal confirmation, a complete copy of the filing and any response to a USCIS request for evidence.
Supplement J is a request for USCIS to recognize an eligible change; filing it does not create eligibility before the 180-day period, convert an unrelated job into a similar one, or guarantee approval of the I-485.
What happens if the original employer withdraws the I-140?
Withdrawal timing affects whether the approved petition remains valid, but it is still distinct from AC21 portability.
Withdrawal before the relevant 180-day protection
When a petitioner withdraws an approved I-140 before 180 days have elapsed since approval, and the associated I-485 has not been pending for 180 days or has not been filed, USCIS generally automatically revokes the I-140 approval. Without a valid petition, a portability request cannot succeed.
Withdrawal after 180 days
If withdrawal occurs 180 or more days after I-140 approval, or the associated I-485 has been pending at least 180 days, the petition generally remains valid for priority-date retention. That does not eliminate the need to prove a qualifying new job, satisfy the I-485 timing rule and meet every other adjustment requirement.
Substantive revocation remains possible
Protection from an ordinary withdrawal is not immunity from revocation. USCIS can still act on substantive grounds, such as evidence that the petition was not approvable when filed or that another statutory requirement was not met. A retained priority date therefore should not be treated as an unconditional approval guarantee.
Priority-date retention does not let you adjust through any employer
A priority date is a place in the employment-based visa queue. If the approved I-140 qualifies for retention, you may be able to use that earlier date with a later qualifying employment-based petition. The later petition must still establish a qualifying job, category and beneficiary eligibility. Date retention alone does not supply the job offer required for adjustment.
If you are not eligible to port the pending I-485 and need a new adjustment application, USCIS says a new employment-based petition is required. The retained date can be valuable in that process, but it does not preserve the old I-485 as a vehicle for an unrelated job.
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| Situation | Likely consequence | What to verify |
|---|---|---|
| I-140 approved; I-485 pending 90 days; new employer ready. | AC21 portability threshold has not been met. | Wait until the I-485 has been pending 180 calendar days and remains unadjudicated, unless a different immigration strategy applies. |
| I-140 approved; I-485 pending 200 days; new job is closely related. | Portability may be available. | File Supplement J with evidence of the permanent offer and same-or-similar classification. |
| I-140 approved; I-485 was never filed. | There is no pending adjustment application to port. | Priority-date retention may help a later petition, but a new adjustment filing and qualifying petition may be required. |
| Employer withdraws I-140 after 220 days of I-485 pendency. | The petition generally remains valid for priority-date retention. | Confirm that no substantive revocation ground exists and separately establish portability eligibility. |
| New job has a different professional field and unrelated duties. | The same-or-similar requirement may fail. | Compare duties, classification, credentials and skills before moving. |
| USCIS approves the I-485 before receiving Supplement J. | The pending adjustment case is no longer available for a portability request. | Check case status and delivery timing; a post-approval portability filing cannot change an already completed adjudication. |
Ability-to-pay guidance when the I-140 is still pending
In January 2024, USCIS announced guidance for certain adjustment applicants who move under AC21 while the I-140 remains pending. In the described cases, USCIS’s ability-to-pay review examines facts from the priority date through the I-140 filing date. The announcement applies prospectively to petitions filed on or after its publication.
This is a narrow rule about the underlying petition. It does not mean that a new employer automatically inherits the former employer’s petition obligations, and it does not replace the requirements for a qualifying new job or a 180-day-pending I-485.
Risks that can derail an otherwise planned move
- Counting from the wrong date: using I-140 approval instead of the I-485 received date can result in a premature filing.
- Waiting until after adjudication: portability applies to a pending, unadjudicated I-485. Once USCIS decides the case, Supplement J cannot keep it open.
- Assuming a retained date is enough: the date does not replace a qualifying permanent job offer.
- Providing only a job title: USCIS needs evidence of duties and occupational similarity, not just matching words in two titles.
- Ignoring petition category: the AC21 route described here applies to EB-1, EB-2 and EB-3 employment-based cases.
- Using an outdated form or address: USCIS editions, fees and filing locations can change. Verify the current instructions before mailing.
- Overlooking revocation issues: withdrawal protection does not cure fraud, material error or other substantive grounds for revocation.
- Leaving without preserving records: obtain copies of the original petition, labor-certification materials when applicable, notices and the new offer before access to employer systems ends.
A practical decision checklist
Before accepting a new position, work through this sequence:
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- Confirm the I-485 remains pending and has not been denied, terminated or approved.
- Confirm the I-140 is approved, or determine whether a pending I-140 is expected to be ultimately approved.
- Verify that the case is EB-1, EB-2 or EB-3.
- Compare the original and proposed duties, classifications, credentials and responsibility levels.
- Obtain a permanent offer letter with enough detail for USCIS review.
- Use the current Form I-485 Supplement J instructions and filing address.
- Preserve delivery evidence and complete copies.
- Review any employer withdrawal, corporate-termination or revocation history before relying on the petition.
- Get individualized legal advice when the occupation is substantially changing, the I-140 is withdrawn or pending, the I-485 has status complications, or the timing is close to day 180.
What this means for your green card strategy
The safest way to think about an employer change is not “my approved I-140 transfers.” Instead, ask three separate questions: Is the approved petition still valid or ultimately approvable? Has the I-485 crossed 180 calendar days while remaining pending? Does the new permanent role qualify as the same or a similar occupation? Only when the answers support all applicable requirements does AC21 portability provide a route to continue the existing adjustment case without restarting it.
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