USCIS has commented that, since June 4, 2012, individuals outside the United States who have been found inadmissible for certain visas by a U.S. consular officer who wish to waive the inadmissibility ground should no longer apply for waivers at their foreign location. USISC comments that such individuals should file requests directly to USCIS by mailing their application to a USCIS Lockbox facility in the U.S. This change, it should be noted, only affects cases in which the individual is outside the U.S., is found inadmissible for an immigrant visa (or nonimmigrant K or V visa) and only affects the filing location.
These waiver applications are adjudicated at the USCIS Nebraska Service Center. These changes, which took place on June 4, affect filings for Form I-601, the Application for Waiver of Grounds of Inadmissibility; Form I-212, the Application for Permission to Reapply for Admission into the United States After Deportation or Removal (if filed together with a Form I-601); and Form I-290B, the Notice of Appeal or Motion (if filed after a denial of a Form I-601 or Form I-212.
Please note that waiver applicants located in Mexico have the option of filing with the local USCIS Field Office in Ciudad Juarez, Mexico, in addition to the USCIS Lockbox facility, until December 4, 2012.