Statutory Overview: The 6-year statutory limit on H-1B status (INA § 214(g)(4)) can be extended indefinitely under AC21 Sections 106(a)/(b) and 104(c) for green card applicants facing long processing queues.
AC21 Extension Provisions Comparison
| AC21 Provision | Prerequisite Requirement | Extension Increment | CFR Citation |
|---|---|---|---|
| AC21 § 106(a)/(b) | PERM or Form I-140 filed 365+ days prior to 6-year H-1B max-out date. | 1-Year Increments | 8 CFR 214.2(h)(13)(iii)(D) |
| AC21 § 104(c) | Approved Form I-140 with priority date backlogged under per-country limits. | 3-Year Increments | 8 CFR 214.2(h)(13)(iii)(E) |
Critical Timeline Guidelines
- The 365-Day Clock: To qualify for 1-year AC21 extensions, your employer must file Form ETA-9089 PERM before your 5th year on H-1B ends (at least 365 days prior to your 6-year max-out).
- Recapturing Travel Time: You can recapture days spent outside the U.S. to extend your 6-year max date, giving your employer additional time to hit the 365-day PERM benchmark.
- Job Portability: A new employer can file a 3-year H-1B extension using an approved Form I-140 from a previous employer, provided the previous I-140 was active for 180+ days before withdrawal.
Frequently Asked Questions
What happens if my PERM is denied before the 6-year H-1B max date?
If a PERM application is denied or revoked, the beneficiary loses eligibility for AC21 1-year extensions under Section 106(a) unless an appeal (BALCA) is filed and pending.
Can I get 3-year extensions if my priority date becomes current?
No. Under AC21 § 104(c), if your priority date becomes current and an immigrant visa is immediately available, you cannot receive a 3-year extension unless you file Form I-485 within 1 year.
Official U.S. Government References
• USCIS AC21 Policy Manual: uscis.gov/ac21
• USCIS Form I-129 Instructions: uscis.gov/i-129
At-A-Glance
365-Day RuleAC21 § 106(a)
3-Year ExtensionAC21 § 104(c)
Statutory Max6 Years (Without AC21)