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 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
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 …
CIS Ombudsman Issues Formal Recommendation to USCIS on …
Dec 18, 2024 · CIS Ombudsman Issues Formal Recommendation to USCIS on Improving Family-Based Petition Routing Procedures and Preventing Delays Post-Approval.
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 …
什么是CIS？ - 知乎
CIS实例： Kenwood Kenwood原名为Trio，曾经是日本3个老牌音响之一，后来因为跟不上市场发展脚步，业绩一落千丈。 Trio原与山水、先锋并称为三大音响公司，其中只有先锋一家顺应潮 …
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 …
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.
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 …
CIS 2 serves as a DHS-wide index system to track the location of case files, including Alien Files (A-File), and to maintain alien status and repository of information. CIS 2 contains information …