24-Month Extension Assembling the Application package


Immigration Updates:

  • USCIS recently updated Form I-765 which is commonly used by F-1 students when applying for Optional Practical Training (OPT). USCIS has stated that as of Feb. 21, 2017 they will no longer accept previous versions of Form I-765. Please use the most recent version of Form I-765 when applying for OPT or other employment authorizations.

Application Package

  • G-1145, E-Notification of Application/Petition Acceptance (Optional) Provided by ISSO
  • Two passport photos (No Glasses Allowed)
  • Check for $410, made payable to Department of Homeland Security.
    • Print I-94 number at top of check.
    • Staple your check in the middle, left hand side of Form I-765.
  • Original I-765
  • Copy of OPT Extension I-20, pages 1 and 3/DSO Letter
  • Copy of passport ID page showing picture and expiration date
  • Copy of I-94, front and back
  • Copy of visa showing expiry date (F-1)
  • Copy of current EAD
  • Copy of your diploma or UT Dallas transcript showing degree conferred
  • Copy of your job offer letter
  • USCIS Request for Evidence Notice (if any)

Mailing the Application

According to the USCIS website, the application mailing address is determined by the address listed on the I-765.

Mail to the Dallas Lockbox if your I-765 address is to one of these states: Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Florida, Georgia, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Mississippi, New Hampshire, New York, North Carolina, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, Oklahoma, Tennessee, Texas, Vermont, Virginia, U.S Virgin Islands or West Virginia.


Mail to the Phoenix Lockbox if your I-765 address is to any other U.S. state.

Dallas Lockbox Phoenix Lockbox
U.S. Post Office – USCISP.O. Box 660867

Dallas, TX 75266

Courier deliveries – USCIS

Attn: AOS

2501 S. State Hwy 121 Business

Suite 400

Lewisville, TX 75067

U.S Post Office – USCISP.O Box 21281

Phoenix, AZ 85036

Courier deliveries – USCIS

Attn: AOS

1820 E. Skyharbor Circle S

Suite 100

Phoenix, AZ 85034