I94 is control you within 6 months in US. In 6 months you only need one I94 and reuse it again and again. Just before its expire date, you need return it to any officer on border or airport.
If you not return it, they have anther half of paper of your I94 with the same number. They can check it if they want. They have right to refuse you come in.
In mostly they don't check it, if you don't show your expired I94. If you have another problem lead to they check and find it. you know the result.
So you decide what to do.
If you not return it, they have anther half of paper of your I94 with the same number. They can check it if they want. They have right to refuse you come in.
In mostly they don't check it, if you don't show your expired I94. If you have another problem lead to they check and find it. you know the result.
So you decide what to do.