If your USCIS receipt shows case type 28 I-485, it typically means your Adjustment of Status application is filed under an employment-based green card category. Many applicants search for case type 28 I-485 meaning, processing time, interview requirements, and AC21 portability rules because USCIS does not clearly explain this code.
In this guide, you’ll learn what case type 28 I-485 really means, who it applies to, how it affects your green card timeline, and what employment-based applicants should expect next.
- I-485 Eligibility: Complete Guide to Adjustment of Status Requirements
- I-485 Processing Time: Complete 2026 Guide to Green Card Waiting Periods
- I-485 Interview Questions: Complete 2026 Guide to USCIS Adjustment of Status Interview
What Is Case Type 28 I-485?
Case type 28 I-485 is a USCIS internal classification code used to identify a specific category of Adjustment of Status applications. Applicants usually see this code printed on their Form I-797C receipt notice.
USCIS assigns case type numbers to organize applications by eligibility basis. These codes help track employment-based, family-based, or other immigration categories within their system.
Case type 28 specifically refers to a type of employment-based Adjustment of Status filing. It does not change your eligibility. It simply identifies how your case is categorized in the USCIS processing system.
Understanding this classification helps applicants interpret processing timelines and next steps more accurately.
What Does Case Type 28 Mean on Form I-485?
When your receipt notice shows case type 28 I-485, it generally indicates that your Adjustment of Status application is based on an employment-based immigrant petition.
Most commonly, this connects to:
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EB-1 (Priority Workers)
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EB-2 (Advanced Degree Professionals)
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EB-3 (Skilled Workers and Professionals)
In most cases, applicants filed Form I-140 (Immigrant Petition for Alien Worker) before or together with Form I-485.
Case type 28 does not reveal your exact EB category. It simply confirms the filing basis is employment-based rather than family-sponsored.
Is Case Type 28 I-485 Employment-Based?
Yes. Case type 28 I-485 is typically associated with employment-based green card applicants.
The key difference:
| Employment-Based | Family-Based |
|---|---|
| Based on job offer | Based on family relationship |
| Requires I-140 | Requires I-130 |
| Employer sponsorship | Family sponsorship |
If your filing included an approved or pending I-140 petition, your case likely falls under case type 28.
Applicants unsure of their category should review their receipt notice or consult their attorney.
Case Type 28 I-485 Processing Time
Processing time varies significantly by field office and visa availability.
Average employment-based I-485 processing time:
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8 to 18 months (when priority date is current)
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Longer if visa retrogression occurs
Key factors affecting case type 28 I-485 processing:
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Visa Bulletin movement
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USCIS staffing
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Background checks
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Interview scheduling
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Case transfer
Applicants from high-demand countries may experience longer waits due to per-country visa caps.
Case Type 28 and Concurrent Filing
Many employment-based applicants file:
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Form I-140
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Form I-485
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Form I-765 (EAD)
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Form I-131 (Advance Parole)
This is called concurrent filing.
Benefits:
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Faster EAD issuance
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Ability to work legally while waiting
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Travel authorization
Risk:
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If I-140 is denied, I-485 may also be denied.
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Case Type 28 I-485 Interview Requirement
Employment-based interviews are sometimes waived. However, USCIS may still schedule interviews.
During the interview, officers may ask:
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Employer information
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Job duties
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Salary confirmation
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Immigration history
Interviews are usually shorter than marriage-based cases.
Changing Employers Under Case Type 28 (AC21 Portability)
After your I-485 has been pending for 180 days, you may qualify under AC21 portability.
Requirements:
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New job must be in similar occupational classification
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Form Supplement J must be filed
This flexibility benefits skilled workers who change employers while waiting for approval.
Documents Required for Case Type 28 I-485
Bring:
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Passport
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I-94 record
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Employment verification letter
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Recent pay stubs
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Approved I-140 copy
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Medical exam (if requested)
Organized documentation speeds interview review.
Case Type 28 I-485 and EAD / Advance Parole
Most applicants receive:
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Employment Authorization Document (EAD)
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Advance Parole travel document
EAD allows legal employment.
Advance Parole allows international travel while I-485 is pending.
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Case Type 28 I-485 and Apartment Leasing Planning
Employment-based applicants often relocate for work before green card approval.
Apartment leasing considerations:
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EAD card serves as work authorization
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Employment verification letter required
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Credit history may be reviewed
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Lease flexibility recommended
Many landlords accept EAD holders, especially with stable income proof.
Real Case Example
An EB-2 software engineer in Seattle received case type 28 I-485 classification. He filed concurrently and received EAD in five months. After 180 days, he changed employers using AC21 portability. His green card was approved 14 months after filing.
Another EB-3 healthcare worker experienced visa retrogression. Her case type 28 I-485 remained pending for 22 months until her priority date became current.
These examples show how visa availability impacts processing.
FAQs About Case Type 28 I-485
What does case type 28 mean?
It usually indicates an employment-based I-485 Adjustment of Status filing.
Is case type 28 EB-2 or EB-3?
It can be EB-1, EB-2, or EB-3. The code does not specify which.
How long does case type 28 take?
Typically 8–18 months, depending on visa availability.
Can I change employers?
Yes, after 180 days under AC21 portability rules.
Can I rent an apartment while case type 28 is pending?
Yes. An EAD and employment verification usually suffice.
Conclusion
Case type 28 I-485 simply identifies your Adjustment of Status application as employment-based. It does not negatively impact your eligibility. However, understanding what it means helps you track processing timelines, evaluate job flexibility under AC21, and plan relocation decisions.
For employment-based immigrants, careful timing, stable employment, and flexible housing arrangements are key. With preparation and awareness of visa bulletin movement, case type 28 I-485 applicants can navigate the green card process with confidence.
