| AIT | Asylum and Immigration Tribunal
|
| ALO | Airline Liaison Officer (helps airlines with documentation checks)
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| CAC | IND Complaints Audit Committee
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| CIO | Chief Immigration Officer (at ports and airports)
|
| DfES | Department for Education and Skills
|
| EEA | European Economic Area (the EU member states plus Norway, Iceland and Liechtenstein, with a linked agreement for Switzerland)
|
| ECO | Entry Clearance Officer (decides visa applications)
|
| ECM | Entry Clearance Manager (manages ECOs)
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| HOPO | Home Office Presenting Officer (represents the Government in immigration and asylum appeals)
|
| IND | Immigration and Nationality Directorate (part of the Home Office)
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| INDIS | Immigration and Nationality Directorate Intelligence Service
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| INEB | Immigration and Nationality Enquiry Bureau (IND's enquiry call centre)
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| IO | Immigration Officer (at a port or airport)
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| NINo | National Insurance Number
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| OISC | Office of the Immigration Services Commissioner (regulates immigration advisers)
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| PEO | IND's Public Enquiry Office
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