随着移民局在八月中完成第二次H-1B抽签，今年的H-1B申请季差不多要结束了。有抽到H-1B的同学固然欢喜，但对于没有抽中的同学又改怎么办？尤其眼看F-1 OPT即将到期并将开始起算60天的宽恕期(Grace Period)，这时候同学们有什么办法可以继续留在美国为雇主继续工作，同时等待明年的抽签呢？

首先要先提醒大家，F-1 到期的60天宽恕期极为重要。在这60天中，同学们除了可以打包准备离开美国外，如果你打算继续留在美国，一定要在这60天内确认自己的下一步。一般来说，同学们最常选择的方式是回到学校，并用Day 1 CPT继续为美国雇主工作。

但问题来了，Day 1 CPT 到底合不合法？为什么常听到大家说使用Day 1 CPT 有风险呢？如果有风险，又该如何避免呢？要回答这个问题，我们要先了解什么是F-1国际学生的Practical Training 。

依照移民法，F-1学生主要透过四种方式在美国合法工作：

(1) On Campus Employment 在校打工;

(2) Curricular Practical Training (课堂实习);

(3)Pre-Completion Optional Practical Training (期中实习);

(4) Post-Completion Optional Practical Training (毕业后实习)。

后面这三种工作方式都和Practical Training有关，但它到底有什么限制呢？我们来看下移民法怎么规定的。

8 CFR 214.2(f)(10)：Practical training. Practical training may be authorized to an F-1 student who has been lawfully enrolledon a full time basis, in a Service-approved college, university, conservatory, or seminary for one full academic year. This provision also includes students who, during their course of study, were enrolled in a study abroad program, if the student had spent at least one full academic term enrolled in a full course of study in the United States prior to studying abroad. A student may be authorized 12 months of practical training, and becomes eligible for another 12 months of practical training when he or she changes to a higher educational level. Students in English language training programs are ineligible for practical training. An eligible student may request employment authorization for practical training in a position that is directly related to his or her major area of study.

(在美国政府核准的学校里合法全职就读满一整个学年的F-1学生，可以被允许使用Practical Training。学生可以被允许使用12个月的Practical Training，且当他/她换到更高的学位时，有资格要求额外的 12个月的Practical Training。)

不过在Student and Exchange Visitor Program的网站中，负责管理F-1国际学生的The Student and Exchange Visitor Program (SEVP)办公室针对必须读完一整个学年的要求，设了例外的情形:

“When you enroll at the graduate level, your designated school official (DSO) may authorize CPT during your first semester if your program requires this type of experience. Ask your DSO for details.”

（当你就读研究生课程时，如果是课程的需要，学校的DSO可以在你第一学期的时候，允许你使用CPT。）