New warning for green card holders in US: Always carry THIS at all times with you, CBP reminds

The Customs and Border Police issued an important reminder the all green card holders that they have to carry at all times with them the proof of their alien registration as mandated by the law. "Failing to do so can lead to a misdemeanor and fines if you are stopped by federal law enforcement," the reminder issued Wednesday said.

This is not a new law and non-citizens are required to carry proof of their legal status in the US always but the Trump administration's reminder shows that the crackdown on green card holders, lawful permanent residents, will continue and just because they are legally residing in the country, it does not mean they will not be punished. The State Department earlier made it clear that permanent residents can also be deported if they are found flouting laws.

🚨 Attention 🚨

Always carry your alien registration documentation. Not having these when stopped by federal law enforcement can lead to a misdemeanor and fines. pic.twitter.com/WAmOeQtLjP

— CBP (@CBP) July 23, 2025

What are Alien Registration Documents ?
Alien Registration Number (A-Number)

This is a unique 7–9 digit number assigned to non-citizens by U.S. Citizenship and Immigration Services (USCIS).

This is used to track immigration records, applications, and status.

This commonly starts with an “A”.

Green Card

Officially known as Form I-551, this is issued to lawful permanent residents. The Donald Trump administration has broken the conception that Green Card holders can't be arrested and their citizenship can't be revoked.

A Green Card includes a photo, the A-number, category of admission and expiry date.

This is proof of the right to live and work in the US permanently.

Employment Authorization Document

Form I-7666 is also known as a work permit which is issued to non-citizens who are temporarily authorized to work. This contains the A number, photo and validity dates.

Arrival-departure record

I-94 documents a non-citizen's entry and authorized stay. This document includes the A-number for certain visa holders. This is issued at ports of entry or online for air travelers.

Under US immigration law, most non-citizens over age 14 who stay in the U.S. for more than 30 days must carry their alien registration documentation at all times.