回複：謝謝pjiang老師，但是我還是比較confused，繼續請教

您的意思是說，即使我老公layoff回國了，我也可以留在這裏。因為有時候，其他的h1 travel international，H4也是合法的。我也可以等同於他們的case？

那我能繼續以我的H4身份讀書嗎？學校會不會通過移民局知道我的老公被layoff了，相當於我的H4失效了呢？

- When H-1b is laid off before expiration and the employer notifies USCIS, the H-1b is considered OOS when remaining in US. In such situation, so is H-4.
When USCIS is not notified the termination of H-1b, it is normally ok as long as I-94 being valid (though factually it is OOS, just USCIS does not pay close attention).

Academic institute does not know the status of primary H-1b, and has no way to know it.