ImmiTips

Beginning Aug. 3, 2010, regardless of the location of the new commercial enterprise, petitioners submitting Form I-526 must mail their petitions to the USCIS Dallas Lockbox facility.  The filing address can be found in Form I-526 instructions at  www.uscis.gov.
The USCIS California Service Center will forward Forms I-526 to the USCIS [...]

Beginning Aug. 3, 2010 all Form I-129F petitions being filed by a U.S. citizen on behalf of a fiancé(e)  or spouse must be submitted to the USCIS Dallas Lockbox facility.
For U.S. Postal Service:
USCIS
PO Box 660151
Dallas, TX 75266
For Express mail and courier deliveries:
USCIS
Attn: I-129F
2501 South State Highway 121 Business
Suite 400
Lewisville, TX 75067
Detailed guidance [...]

Beginning Aug. 3, 2010, those applicants filing to request initial benefits or an extension of Family Unity Benefits under Section 301 of IMMACT 90, should mail their application to the USCIS Dallas Lockbox facility.  Applicants submitting Form I-817 and filing under section 1504 of Public Law 106-554, LIFE Act, to [...]

Beginning Aug. 3, 2010 applicants submitting Form I-539 by itself must mail their application to the USCIS Dallas Lockbox facility.
Applicants submitting their Form I-539 with Form I-129, Petition for Nonimmigrant Worker, will continue to submit both forms to either the USCIS California Service Center or the USCIS Vermont Service Center, [...]

Form I-140 filed alone or together with an Application to Register Permanent Residence or Adjust Status (Form I-485) should be filed at the USCIS Dallas Lockbox facility, or at the USCIS Nebraska or Texas Service Centers, depending on the classification for which the petition is being filed.  Forms I-140 for [...]