假期出境前先办旅行签名：留学生须提前两到四周找学校DSO签I-20
感恩节和寒假临近，不少留学生计划出境探亲或旅行。美国国土安全部面向留学生的官方平台 Study in the States 提醒：打算离开美国的 F 类学生，出行前要先确认自己的 I-20 表格是最新的，并至少提前两到四周向学校的指定校方负责人（DSO）申请旅行签名，没有有效签名的 I-20 可能给返美入境带来麻烦。
同一份官方提醒还列出学期中的几项基本功：抵达美国后主动联系 DSO，他们是身份、合规和学校政策问题的主要求助对象；电话、邮箱、住址等联系方式有任何变化，都要尽快报告 DSO；每学期必须修满全日制课程量，想减课先和 DSO 商量，不要先斩后奏；护照、I-20 和签证等文件要保持有效、妥善保管并留复印件。
打工方面，F 类学生在美国工作必须走授权流程，先和 DSO 沟通、拿到授权再接受任何工作。把这些事项提前办妥，假期出行和返校都会顺当得多。（来源：美国国土安全部Study in the States）
Before Holiday Travel, Get the Signature: F-1 Students Should Ask Their DSO Two to Four Weeks Ahead
With Thanksgiving and the winter break approaching, many international students are planning trips abroad. Study in the States, the U.S. Department of Homeland Security's official platform for international students, reminds F students who intend to travel outside the United States to confirm that their Form I-20 is up to date and to request a travel signature from their designated school official (DSO) at least two to four weeks before traveling; returning to the United States without a valid endorsement can cause problems at the port of entry.
The same official guidance lists several basics for the term: contact your DSO once you arrive in the United States, since they are the main resource for questions about status, compliance and school policies; report any change in email, phone number or physical and mailing address to the DSO as soon as possible; enroll in a full course of study each term, and speak with the DSO before dropping a class or reducing a course load; and keep documents such as passport, Form I-20 and visa valid, stored securely, with copies made.
On employment, F students who hope to work in the United States must follow the work authorization process and obtain authorization from the DSO before accepting any job. Handling these items early makes holiday travel, and the return to campus, much smoother. (Source: Study in the States, U.S. Department of Homeland Security)
来源：美国国土安全部Study in the States
发布：GSM·美国（发布链接）
图片来源：图片来源：大学校园景色（Germanna Community College 摄，Wikimedia Commons，CC BY 2.0） / Image: 大学校园景色, by Germanna Community College, Wikimedia Commons (CC BY 2.0)
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