51勛圖厙

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Alert

On July 17, 2026, the U.S. Department of Homeland Security published a that establishes a fixed time period of admission and an extension of stay procedure that impact students and scholars on F-1 and J-1 visas, and other academic restrictions specifically for F-1 students. The rule is anticipated to take effect Sept. 15, 2026 and will affect members of the international community in different ways. As OISS gathers more information and communicates specific guidance to individuals and groups, we ask that members of the international community refer to the DHS Rule on Admission and Extension webpage as an up-to-date resource. Members of the Northwestern international community who have questions are encouraged to reach out directly to their assigned .

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J-1 Visa Types

This page outlines the four J-1 visa categories 51勛圖厙 is authorized to use. OISS will make the final decision on which category the J-1 Exchange Visitor receives by reviewing the information provided in the DS-2019 Request.

Short-Term

Duration of U.S. Visit

1 day - 6 months

Examples of NU Position

  • Visiting Scholar
  • Visiting Pre-Doctoral Fellow
  • Specialized non-research, non-staff position

Purpose of Visit

  • Teach
  • Observe
  • Consult
  • Train staff
  • Demonstrate special skill(s)

Position in Home Country

  • Professor
  • Researcher
  • Post-doc or Pre-doc/ Graduate Students
  • Similar credentials (Doctors, attorneys, etc.)

Return in category?

Yes, unlimited

Research

Duration of U.S. Visit

3 weeks - 5 years

Examples of NU Position

  • Postdoctoral Fellow
  • Research Associate
  • Visiting Scholar
  • Visiting Pre-Doctoral Fellow

Purpose of Visit

  • Research
  • Observe
  • Consult
  • Teach

Position in Home Country

  • Professor
  • Researcher
  • Post-doc or Pre-doc/Graduate Students
  • Similar credentials (Doctors, attorneys, etc.)

Return in category?

No, 24 Month Bar

Professor

Duration of U.S. Visit

3 weeks - 5 years

Examples of NU Position

  • Lecturer
  • Visiting Faculty
  • Visiting Scholar

Purpose of Visit

  • Teach (primary)
  • Observe
  • Consult
  • Research

Position in Home Country

  • Professor
  • Researcher
  • Post-doc or Pre-doc/Graduate Students
  • Similar credentials (Doctors, attorneys, etc.)

Return in category?

No, 24 Month Bar

Student Intern

Duration of U.S. Visit

1 day - 12 months

Examples of NU Position

Intern

Purpose of Visit

Participate in structured internship program

Position in Home Country

Student

Return in category?

Yes, in different internship program