In order to more effectively and efficiently initially process applications and fees, USCIS has changed the filing locations of a number of forms from USCIS Service Centers to USCIS Lockbox facilities. This centralization of the form intake process enables USCIS to use technology in place at their Lockbox facilities to enter and process initial applications.

Filling locations have changed for the following forms:

- I-129F, the Petition for Alien Fiance(e)
- I-130, the Petition for Alien Relative
- I-140, the Immigrant Petition for Alien Worker
- I-526, the Immigrant Petition by Alien Entrepreneur
- I-539, the Application To Extend/Change Nonimmigrant Status
- I-817, the Application for Family Unity Benefits