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Service Tree

The Service Tree lists all services in "branched" groups, starting with the very general and moving to the very specific. Click on the name of any group name to see the sub-groups available within it. Click on a service code to see its details and the providers who offer that service.

Citizenship and Immigration Services Offices

CIS Regional Service Centers

Bureau of Citizenship and Immigration Services offices with four locations throughout the U.S. that are responsible for receiving, reviewing and adjudicating the majority of applications for immigration services and benefits that are filed by petitioners. All applications must be submitted by mail or forwarded by other CIS offices. The service centers are not staffed to handle walk-in applications or answer questions.

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