Citizenship and Immigration Services - Homeland Security
Managed by U.S. Citizenship and Immigration Services (USCIS), the United States’ lawful immigration system is one of the most generous in the world.
CIS Ombudsman | Homeland Security
May 23, 2025 · CIS Ombudsman serves as a liaison between the public and U.S. Citizenship and Immigration Services (USCIS) - How to Submit a Case Assistance Request
How to Submit a Case Assistance Request | Homeland Security
When and how to submit a case assistance request and the types of cases the CIS Ombudsman's Office can help with.
Citizenship and Immigration Services Overview - Homeland Security
Overview of USCIS which oversees lawful immigration to the U.S., administering the nation’s lawful immigration system.
CIS、CMOS是两种不同的传感器吗? - 知乎
CCD领域应用为数码摄影、天文学。 4、制造工艺的不同 CCD、CIS、CMOS、由于感光单元及读出电路结构不同而导致制造工艺的不同。 CCD需要专用的工艺制程实现；CIS图像感光单元为光电二极 …
DHS/USCIS/PIA 009 Central Index System | Homeland Security
Jun 22, 2007 · The Department of Homeland Security (DHS) U.S. Citizenship and Immigration Services (USCIS) maintains the Central Index System (CIS). CIS is a repository of electronic data that …
U.S. Citizenship and Immigration Services (USCIS)
Dec 2, 2025 · DHS Cracks Down on Visa Abuse as Trump Administration Ends Border Crisis and Drives Historic Drop in Foreign-Born Population Under President Donald J. Trump’s leadership, DHS has …
CIS Ombudsman 2025 Annual Report | Homeland Security
Dec 4, 2025 · The CIS Ombudsman’s Annual Report is furnished to the Senate and House Judiciary Committees in the middle of the year.
Types of Cases the CIS Ombudsman Can and Cannot Help With
Jan 23, 2025 · The Office of the Citizenship and Immigration Services Ombudsman (CIS Ombudsman) assists individuals and employers in resolving difficulties they are experiencing with U.S. Citizenship …
Citizenship and Immigration Services | Homeland Security
Nov 25, 2025 · Citizenship and Immigration Services Ombudsman CIS Ombudsman provides individual case assistance, and makes recommendations to improve the administration of immigration benefits.