Should I stamp the i-20 form when entering the United States?

1. When the United States enters the customs, it is not necessary to stamp the i-20 form. When you enter the customs, you will only check I20, and you will not stamp it.

2. Form I-20 is the identification document issued by the US Immigration Bureau to international students with F- 1 student visas through American universities, which together with the students' passports and visas constitute the legal proof of their short stay in the United States to attend their studies. I-20 indicates the student's SEVIS number, name, date of birth, American school, major, admission time, graduation time, funding requirements and funding provision. There is the signature of the school visa service (visa management office) and my signature. This form (original) is used to apply for the American F- 1 student visa at the American embassy or consulate, and it needs to be presented to the immigration officer when entering the American customs.