https://www.uscis.gov/i-131
網頁有很清楚的指示，在：
https://www.uscis.gov/sites/default/files/document/forms/i-131instr.pdf
可以下載說明指引。
指引寫得很清楚你需要本人身在美國才可以申請I-131：
If you are in the United States as a lawful permanent resident or conditional peranent resident, you may apply for a Reentry Permit. You must be physically present in the United States when you file the Reentry Permit application and complete the biometrics services requirement.
如果你現在並非身在美國，而你已經離開美國超過一年或持有I-131但已超過兩年，在容許情況下（網頁的step 1），你可以申請回境簽證（SB-1)：
https://travel.state.gov/content/travel/en/us-v...eturning-resident.html
A permanent resident (called lawful permanent resident or LPR) or conditional resident (CR) who has remained outside the United States for longer than one year, or beyond the validity period of a Re-entry Permit, will require a new immigrant visa to enter the United States and resume permanent residence. A provision exists under U.S. visa law for the issuance of a returning resident special immigrant visa to an LPR who remained outside the United States due to circumstances beyond his/her control. This webpage is about Returning Resident Visas. If you are an LPR unable to return to the United States within the travel validity period of the green card (1 year) or the validity of the Re-entry Permit (2 years), you may be eligible and can apply at the nearest U.S. Embassy or Consulate for a Returning Resident (SB-1) immigrant visa.
2021-02-23, 10:42
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