The USCIS service centers were established to handle the mail, file, data entry, and adjudication of most applications for immigration services and benefits. There are four service centers that cover the United States. These are not staffed to receive walk-in applications or questions. News & information relevant to a specific USCIS service centers can be found here : California, Missouri, Nebraska, Texas, and Vermont. NewsBriefs common to ALL service centers are posted below.