Alien Registration Number
Definition:
An Alien Registration Number, often abbreviated as A-Number, is a unique seven- to nine-digit identifier assigned by the U.S. Citizenship and Immigration Services (USCIS) to non-citizens residing in or interacting with the United States immigration system. This number is used to track an individual’s immigration records and applications throughout their stay or immigration process. The A-Number appears on various official documents, such as green cards, work permits, and correspondence from immigration authorities. It serves as a permanent reference number for immigration purposes.
Alien Registration Number Information
The Alien Registration Number is critical for managing immigration cases and maintaining accurate federal records. It helps USCIS, Immigration and Customs Enforcement (ICE), and other agencies identify and process individuals within the immigration system. Applicants use their A-Number when filing forms, checking case status, or communicating with immigration offices. It is also required for background checks and when applying for benefits like permanent residency or naturalization. The A-Number does not change, even if the holder’s immigration status changes over time.
Florida Legal Definition
Florida law does not specifically define an Alien Registration Number, but state agencies often require it for identification and verification when dealing with immigration-related matters. For example, individuals may be asked to provide their A-Number when applying for driver’s licenses, professional licenses, or state benefits that require proof of legal presence. Florida agencies typically reference the federal definition and rely on USCIS-issued documents for validation. The A-Number serves as an official means of confirming lawful status for various administrative processes within the state.
How It’s Used in Practice
In practice, the Alien Registration Number is used across multiple immigration and legal processes. Non-citizens provide it when completing federal immigration forms such as Form I-485 (Application for Permanent Residence) or Form I-765 (Employment Authorization). Attorneys and representatives use it to access case information or request records from USCIS. Employers may record it on employment verification forms (Form I-9) to confirm work eligibility. It also appears on immigration court documents, making it essential for maintaining continuity in an individual’s immigration history.
Key Takeaways
- An Alien Registration Number (A-Number) is a unique identifier assigned to non-citizens by USCIS.
- It is used to track immigration cases, applications, and official records.
- The number appears on green cards, work permits, and immigration notices.
- Florida agencies may request the A-Number for identity verification in state processes.
- The A-Number remains the same throughout a person’s immigration history.
Disclaimer: The information and opinions provided are for general educational, informational or entertainment purposes only and should not be construed as legal advice or a substitute for consultation with a qualified attorney. Any information that you read does not create an attorney–client relationship with Barnes Walker, Goethe, Perron, Shea & Johnson, PLLC, or any of its attorneys. Because laws, regulations, and court interpretations may change over time, the definitions and explanations provided here may not reflect the most current legal standards. The application of law varies depending on your particular facts and jurisdiction. For advice regarding your specific situation, please contact one of our Florida attorneys for personalized guidance.
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