Your H-1B extension has been sitting at USCIS for three months. Your I-94 expired last week. Your manager is asking, gently, whether you are still legal to work. You are — probably. But ‘probably’ is not a word you want attached to your employment eligibility, so let's get specific.
8 CFR 274a.12(b)(20) is the regulation doing the work here. It is narrow, it is conditional, and it has limits that trip up consultants who assume a pending receipt notice means business as usual on every front.
This is general information, not legal advice. Confirm your specific filing dates, petition type, and any travel plans with a licensed immigration attorney before you act on anything below.
What the 240-day rule actually authorizes
Under 8 CFR 274a.12(b)(20), a nonimmigrant worker in H-1B status (the rule also covers several other categories, including H-1B1, L-1, and TN) may continue working for up to 240 days past the expiration of their authorized period of stay, provided two conditions are met:
- Same employer. The petition extending status must be filed by the employer the worker currently works for — not a new one.
- Timely filed. The extension petition (Form I-129) must be filed with USCIS before the current I-94 expiration date.
Meet both conditions, and you have automatic work authorization that runs from the day your I-94 expires until either (a) USCIS decides the case, or (b) 240 days pass — whichever comes first. No separate document. No EAD card. The receipt notice (Form I-797C) plus your expired I-94 and the underlying petition are your evidence of status during this window.
The two words that matter most
Every failure mode in this rule traces back to ‘same employer’ and ‘timely filed.’
Same employer means the petitioner on your pending Form I-129 is the same legal entity that is currently your employer of record. If you are mid-transition from one H-1B sponsor to another — a change of employer petition, sometimes loosely called an H-1B transfer — the 240-day rule under this provision does not apply to that scenario in the way people assume. Change-of-employer portability has its own rule, under INA 214(n) (often cited alongside AC21), which allows you to start working for the new employer once that new petition is filed, subject to its own conditions. Mixing up these two rules is one of the most common and most dangerous misreadings consultants make. If your I-94 has expired and your current employer has not yet filed, or if the filer is a different company than your current employer, you need an attorney to map out exactly which rule — if any — covers you right now.
Timely filed means filed on or before the I-94 expiration date printed on your most recent admission record, not the end of your pay period, not the date your employer told you they would file. If the petition goes in even one day late, the 240-day bridge does not exist. You are out of status from the expiration date forward, regardless of how diligent your employer's HR team was about everything else.
What 240 days does not cover
This is the part editorial calendars and employer memos tend to skip, and it is the part that actually matters for people living through it.
- International travel. The 240-day rule authorizes continued employment inside the United States. It does not authorize re-entry. If you leave the country while your extension is pending and your I-94 has expired, you generally need a valid, unexpired visa stamp and an approved (not pending) petition to come back in H-1B status. A pending receipt notice at the border is not a substitute for an approved I-797 and a current visa. If a trip is unavoidable, talk to your attorney well before you book anything.
- Change of employer. Covered above, but worth repeating: 240 days protects you with your current sponsor. It is not a parachute that lets you start a new job on day 241 while that new employer's petition is still pending, unless the separate portability provisions under AC21 independently apply to that filing.
- State licensing boards and third-party credentialing. Many state agencies — boards that issue professional licenses, some state motor vehicle agencies issuing driver's licenses tied to status, and various credentialing bodies — will not accept a USCIS receipt notice as proof of continued work authorization. They want an approved petition, a current I-94, or an EAD, and they are not required to recognize 274a.12(b)(20) for their own purposes. If your role requires a state-issued professional license or a REAL ID-compliant driver's license tied to your status, check with that specific agency early. Do not assume federal work authorization logic extends to state administrative processes.
What happens if the extension is denied
The 240-day clock is not a guarantee — it is a bridge that can collapse under you. If USCIS denies the extension petition, your work authorization under this provision ends immediately on the date of denial, not on day 240. You do not get to keep working out the rest of the 240 days. Employers should have a plan for this scenario before it happens: what happens to payroll, to badge access, to client notifications, on the day a denial notice lands. If your case includes a Request for Evidence (RFE), the 240-day window keeps running while you respond — it does not pause or reset.
A quick reference
| Scenario | 240-day rule applies? |
|---|---|
| Same employer files extension before I-94 expires | Yes, up to 240 days or decision, whichever is first |
| Same employer files extension after I-94 already expired | No — not timely filed |
| New employer files a change-of-employer petition | Different rule (AC21 portability), not 274a.12(b)(20) |
| International travel during the 240-day window | No — re-entry requires approved petition and valid visa |
| State professional license renewal on receipt notice | Not guaranteed — agency-dependent, confirm directly |
| Petition denied during the 240-day window | Authorization ends on denial date, not day 240 |
What to check this week if your extension is pending
- Confirm your employer's immigration counsel filed before your I-94 expiration date — get the filing receipt date in writing.
- Confirm the petitioner on the I-129 is your current legal employer, not a staffing intermediary or client entity that differs from your actual employer of record.
- If you hold a state professional license, call that board directly and ask what documentation they require during a pending federal extension.
- Pause any international travel plans until you have an approved petition and a valid visa, or clear written guidance from your attorney.
- Ask your employer what the contingency plan is if the petition is denied rather than approved.
None of this replaces a conversation with your attorney about your specific filing. The regulation is precise, but your facts — filing date, petitioner identity, travel plans, state licensure — are what actually determine where you stand.
If you are navigating an extension, a transfer, or a PERM timeline and want a second set of eyes on how the pieces fit together, the Josh Pros LLC team has sat across the table from this exact situation more times than we can count. Reach out at contact@joshpros.com or visit https://joshpros.com — we are happy to talk through the process with you.
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This is general information, not legal advice. Immigration rules change and outcomes depend on your individual circumstances. Confirm anything that affects your case with a licensed immigration attorney.
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