U.S. Citizenship and Immigration Services (USCIS) | U.S. Citizenship and Immigration Services (USCIS)
On March 31, applicants and petitioners filing at the Phoenix lockbox will see a new filing location for courier delivery services such as UPS, FedEx, and DHL. We will move our Phoenix lockbox to Tempe, AZ, for courier delivery services. When using the U.S. Postal Service, the filing location will remain the same.
We will forward any applications, petitions, or requests received via courier delivery services between March 31 and April 28. After April 28, we will not accept courier delivery services at the previous address.
Our Lockbox Filing Location Updates page provides an up-to-date summary of changes we make to any lockbox filing location.
For the most current information on where to file, please see the Where to File section on the webpage for your form. You can also subscribe to the Forms Updates GovDelivery distribution list to receive an email each time we update a filing location.
Original source can be found here.