This can be found at http://newdelhi.usembassy.gov/uscisacronyms.html
| AAO | Administrative Appeals Office |
| Act | Implies the Immigration and Nationality Act (INA), as amended |
| A-File | Alien File |
| Alien | Any person who is not a citizen or national of the United States. |
| A-Number | Alien Number |
| AOS | Adjustment of Status |
| ASC | Application Support Center |
| BIA | Board of Immigration Appeals |
| CBP | U.S. Customs and Border Protection |
| CCA | Child Citizenship Act of 2000 |
| CFR | Code of Federal Regulations |
| CIS | Citizenship and Immigration Services (also known as BCIS or USCIS) |
| COA | Class of Admission |
| COB | Country of Birth |
| COC | Country of Citizenship |
| CSPA | Child Status Protection Act |
| DD | District Director |
| DHS | Department of Homeland Security |
| DOB | Date of Birth |
| DOD | Department of Defense |
| DOJ | Department of Justice |
| DOL | Department of Labor |
| DOS | Department of State |
| DV | Diversity Visa Program |
| EAD | Employment Authorization Document |
| EOIR | Executive Office for Immigration Review |
| EWI | Entry Without Inspection |
| FAM | Foreign Affairs Manual |
| FCO | File Control Office |
| FOIA | Freedom of Information Act |
| Green Card | Officially known as Permanent Resident Card (Form I-551/151) |
| HQ | Headquarters |
| ICE | U.S. Immigration and Customs Enforcement |
| IIRIRA | The Illegal Immigration Reform and Immigrant Responsibility Act of 1996 |
| IJ | Immigration Judge |
| IMFA | Immigration Marriage Fraud Amendments of 1986 |
| IMMACT | The Immigration Act of 1990 |
| INA | Immigration and Nationality Act, as amended |
| INS | Immigration and Naturalization Service |
| INSERTS | Immigration and Naturalization Service Early Research and Transmittal System |
| IRCA | Immigration Reform and Control Act, 1986 |
| IV | Immigrant Visa |
| LAPR | Lawfully Admitted for Permanent Residence |
| LPR | Lawful Permanent Resident |
| NATZ | Naturalization |
| NIV | Non Immigrant Visa |
| NOID | Notice of Intent to Deny |
| NOIR | Notice of Intent to Revoke |
| NVC | National Visa Center |
| OI | Operation Instructions |
| OIC | Officer in Charge |
| OSC | Order to Show Cause |
| PA | Privacy Act |
| POE | Port of Entry |
| TWOV | Transit Without Visa |
| USA Patriot Act | Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism” Act of 2001 |
| U.S.C. | United States Code |
| USC | United States Citizen |
| VD | Voluntary Departure |
| VWPP | Visa Waiver Pilot Program |