The NBC receives Forms submitted by applicants from the Lockbox. In general, a lockbox is a post office box used by organizations to accelerate the collection of receivables. In the case of the NBC, the Lockbox is used to accelerate these receivables (which are applications and petitions) by electronically capturing data and images from these Forms and by performing fee receipting and fee deposit. USCIS employees oversee Lockbox operations and perform case resolution activities on cases processed at the Lockbox. Cases are reviewed at the Lockbox for basic information only, including the completion of the following items:
* Basic biographical information * Signature on the Form * Jurisdiction of the submitted Form * Correct fee * Basic Eligibility (including visa availability) of applicant
Please check the form download page at uscis.gov for the current correct address. Note that addresses will be different for Post Office delivery vs private courier delivery (FedEx, UPS, DHL etc).