When you live in the United States, whether you are studying, working, or settling in, you need documents to ensure your legal status and rights!
I will introduce in detail the four documents necessary to live in the U.S. - Green Card, EAD, Social Security Number (SSN) and driver's licence, and explain their importance and how to obtain and use these documents.

• Green Card: Permanent Resident Card (PRC)

The Green Card is the basic document that allows foreign nationals to live, work, and enjoy social benefits in the United States. The Green Card gives the holder almost the same benefits as a U.S. citizen, except for a few special restrictions.

• EAD Work Permit: Employment Authorisation Document (EAD)

An EAD is a type of work authorisation issued by the USCIS to foreign nationals. It is usually required for temporary visa holders (e.g., H-1B, L-1, etc.) or immigrant applicants in the adjustment of status process.

• SSN: Social Security number

The Social Security Number (SSN) is a unique identification number assigned by the U.S. government to all legal residents. It is almost as important as a Chinese ID card number and is indispensable for employment, tax returns, credit history, social welfare applications, and more.

• Driver's Licence

In the United States, a driver's licence is not only proof of legal driving, but also a widely accepted form of identification. Most states require residents to have a valid driver's licence in order to drive, and driver's licences are often used as identification in everyday life.

Translated with DeepL.com (free version)