What is the difference between OPT and CPT?

OPT (Optional Practical Training) is post-graduation work authorization allowing F-1 students to work in a field related to their major for up to 12 months (extendable to 36 months for STEM majors). CPT (Curricular Practical Training) is on-campus work authorization during enrollment that must be an integral part of the curriculum and requires school approval. Key differences: CPT is used during studies (part-time or full-time), while OPT is primarily used after graduation (pre-completion OPT exists but is less common). Using 12 or more months of full-time CPT disqualifies you from OPT.

How do I apply for a STEM OPT extension?

The STEM OPT extension grants an additional 24 months of work authorization beyond the initial 12-month OPT. Requirements: (1) hold a degree in a STEM-designated field (CIP code list published by DHS); (2) work for an E-Verify registered employer; (3) submit a completed Form I-983 Training Plan; (4) file Form I-765 before OPT expires. OPT is automatically extended for 180 days while the application is pending. During STEM OPT, the I-983 must be updated annually, and the employer has training oversight responsibilities.

Can F-1 students work off-campus?

Generally, F-1 students cannot work off-campus during their first academic year but may work on-campus (up to 20 hours per week during the academic year). After the first year, off-campus work is permitted in these situations: (1) CPT (curriculum-required internship); (2) OPT (pre- or post-completion); (3) severe economic hardship employment authorization (must demonstrate unforeseen financial difficulties and obtain DSO and USCIS approval); (4) international organization internship. Unauthorized off-campus employment is a violation of F-1 status.

What are common reasons for F-1 visa denial?

Common denial reasons include: (1) INA Section 214(b) — the consular officer determines the applicant has immigrant intent and failed to demonstrate ties to the home country; (2) insufficient financial documentation — inability to prove funding for tuition and living expenses; (3) inadequate academic preparation — English proficiency or academic background does not match the program; (4) the school or program is not well-known, raising doubts about the purpose of study; (5) poor interview performance — unclear or inconsistent answers. Thorough preparation of your study plan and return plan is strongly recommended.

What is the F-1 to H-1B pathway?

The typical F-1 to H-1B pathway: (1) after graduation, apply for 12 months of OPT (STEM majors can extend to 36 months); (2) during OPT, secure an employer willing to sponsor H-1B; (3) each March, the employer submits H-1B electronic registration for the lottery; (4) if selected, file the full I-129 petition; H-1B takes effect October 1. If OPT expires before October 1, the Cap-Gap policy automatically extends F-1 status until H-1B becomes effective. STEM OPT students not selected may continue working and re-enter the lottery the following year.

Can I apply for a green card while on F-1 status?

F-1 is a nonimmigrant visa, and while it does not explicitly prohibit "dual intent," caution is warranted in practice. F-1 students can be beneficiaries of EB-1A or NIW petitions, but if the F-1 visa expires and renewal is needed, the consulate may deny it due to immigrant intent. A safer approach is to first transition to H-1B (which allows dual intent), then pursue the green card. If in the U.S. with a current priority date, filing I-485 adjustment of status while in F-1 status is possible.

The Peng Law

F-1学生签证

F-1 Student Visa

F-1签证是美国最常见的学生签证类型，适用于在美国经SEVP认证的学术机构（大学、学院、语言学校、中小学等）全日制学习的外国学生。

3–6 months学校申请+录取

1–2 weeksSEVIS费+DS-160

3–5 monthsOPT审批

Overview

概述

F-1签证是美国最常见的学生签证类型，适用于在美国经SEVP认证的学术机构（大学、学院、语言学校、中小学等）全日制学习的外国学生。F-1学生可以通过课程实习训练（CPT）和选择性实习训练（OPT）获得在美国合法工作的机会。STEM专业的F-1学生在完成12个月的OPT后，还可以申请额外24个月的STEM OPT延期，总共获得最长36个月的工作许可。F-1签证是许多留学生通往H-1B工作签证和最终获得绿卡的重要起点。

Eligibility

申请条件

已获得SEVP认证学校的录取通知书并获得I-20表格

具备足够的英语能力（或已被语言培训项目录取）

有充足的资金证明支付学费和生活费（存款证明、奖学金信、资助信等）

在本国有不可放弃的居所或社会关系（证明非移民意图）

缴纳SEVIS I-901费用（$350）

学历背景符合所申请项目的入学要求

Application Process

申请流程

获得学校录取

申请并获得SEVP认证学校的录取通知，学校在SEVIS系统中创建记录并签发I-20表格。

缴纳SEVIS费

在线缴纳I-901 SEVIS费用（$350），保留缴费收据。

填写DS-160

在线填写非移民签证申请表DS-160，上传照片，获取确认页条形码。

预约签证面签

在美国驻外使领馆预约面签时间，缴纳$185签证申请费。

签证面签

携带护照、I-20、DS-160确认页、SEVIS费收据、录取通知书、资金证明、学历文件等参加面试。

入境美国

F-1签证持有人可在I-20上开学日期前30天内入境美国。入境时获得I-94记录（标注D/S即"身份有效期"）。

Timeline Reference

时间线参考

阶段	预计时间
学校申请+录取	3-6个月
SEVIS费+DS-160	1-2周
签证面签等待	2-8周（因使领馆而异）
签证审批	面签当天或1-4周（行政审查）
OPT申请	毕业前90天至毕业后60天提交
OPT审批	3-5个月

Frequently Asked Questions

常见问题

OPT（Optional Practical Training）是毕业后的选择性实习训练，允许F-1学生在与专业相关的领域工作最长12个月（STEM专业可延长至36个月）。CPT（Curricular Practical Training）是在读期间的课程实习训练，必须是课程的必要组成部分，且需要学校批准。主要区别在于：CPT是在校期间使用（兼职或全职），OPT主要在毕业后使用（也有Pre-completion OPT但较少见）。使用12个月以上的全职CPT将丧失OPT资格。