The U.S. Department of Homeland Security (DHS) has finalized a significant new rule that will fundamentally change how long international students can stay in the United States on F-1 visas. Starting September 15, 2026, the long-standing “Duration of Status” (D/S) system will be replaced with a fixed admission period of up to 4 years.

This policy applies to new and current F-1 students and aims to increase oversight and reduce potential overstays.

Key Changes Under the New Rule

• Maximum stay: 4 years (or the length of your program, whichever is shorter).
• Students in programs longer than 4 years (especially Master’s or PhD) must file Form I-539 with USCIS to request an extension of stay, pay the filing fee, and submit biometrics.
• Grace period after program completion reduced from 60 days to 30 days.
• Restrictions on changing majors, schools, or educational levels (especially stricter for graduate students).
• Fixed end date will appear on your Form I-94 upon entry.

Who Is Affected?

• New F-1 students entering the U.S. after September 15, 2026.
• Current students will have a transition period (generally up to 4 years from the effective date or program end date).

Practical Advice for Vietnamese Students and Families

1. 1. Plan your academic timeline carefully — try to complete your degree within 4 years if possible.
   2. Choose universities and programs with strong support for international students.
   3. Prepare financial and documentary evidence early for any potential extension application.
   4. Maintain full-time enrollment and good academic standing at all times.
   5. Monitor your SEVIS record and I-94 status closely.

At Truong Law Firm, PLLC, we closely monitor all U.S. immigration policy changes and help Vietnamese students and families navigate these new requirements successfully.

Contact us today for a consultation to review your study plan and prepare for the upcoming changes.

Frequently Asked Questions

Q: When does the 4-year F-1 limit take effect? A: The rule becomes effective on September 15, 2026.

Q: Do I need to apply for an extension if my program is longer than 4 years? A: Yes. You will need to file Form I-539 with USCIS before your authorized stay expires.

Q: Does this rule affect students already in the U.S.? A: Current students will be allowed to complete their current program or up to 4 additional years under the transition rules.

Q: Will the grace period change? A: Yes, it will be shortened to 30 days after completing your program.

Q: How can Truong Law Firm help? A: We provide personalized guidance on F-1 visas, extensions, OPT/STEM OPT, and long-term immigration strategies for Vietnamese students.