F-1 guides: real scenarios, answered
These are the situations international students actually bring to a DSO's desk — deadlines missed by days, statuses that don't match the paperwork, jobs that may or may not count. Written by a practicing Designated School Official.
The F-1 duration of status rule is ending: what changes September 15, 2026
The plain-language map of the biggest F-1 change in decades — transition protection, fixed dates, and which rules now apply to you.
Do I need to file Form I-539? The March 18, 2027 OPT carve-out
The one-time filing path that lets transition students skip the I-539 — and the three ways students forfeit it.
60 days or 30? F-1 grace periods under the new rule
Four different departure periods now exist. Which one you get depends on how and when you were admitted.
Traveling after September 15, 2026: what returning students need to know
One trip abroad can move you from the old rules to a fixed-date I-94. What to check before you book.
The four-year F-1 admission limit, explained
Four years from the program start date — not your arrival. How the cap works and what happens when your program runs longer.
The OPT filing window: 60 days became 30 on September 15, 2026
Filing 45 days after graduation no longer works. The new 30-day window, the unchanged SEVIS rule, and the March 18, 2027 carve-out.
When does the F-1 60-day grace period start — and who still gets 60 days?
Which date starts the clock, and whether yours has 60, 30, 15, or 0 days on it after September 15, 2026.
The cap-gap extension, explained by a DSO
Who qualifies, why it sometimes doesn't show on your I-20, and the grace-period trap.
1099 work, gigs, and self-employment on OPT
What counts as OPT employment, what changes on STEM OPT, and how unemployment days work.
Transferring schools after the semester already started
Late transfer-ins, release dates, and the ways a mid-term transfer quietly goes wrong.
When can I apply for STEM OPT?
The 90-day window, the 60-day recommendation rule, and the 180-day automatic extension.
I missed my STEM OPT 6-month validation report
The 10-business-day rule, SEVP Portal vs. myUSCIS, and what a DSO can actually repair.
OPT unemployment days: how the count actually works
The 90/150-day limits, what stops the clock, and the 10-day-gap myth.
Reduced course load, semester by semester
Academic-difficulty RCL, medical RCL, final-semester rules — and the limits on each.
The one-online-class rule, explained
How hybrids count, classes beyond the minimum, and the final-semester trap.
CPT that survives scrutiny
The curricular test, the 20-hour line, the 12-month rule that kills OPT, and 1099 offers.
Changing status to F-1 inside the U.S.
The bridge problem, the B-2 no-study rule, and the travel trap that abandons your case.
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