Columbia has several policies related to international travel.
Current COVID-related guidance regarding official travel is here: https://covid19.columbia.edu/content/spring-2022-travel-restrictions
You must register your travel here: https://globaltravel.columbia.edu/content/register-a-trip
Next, review the policy here: https://research.columbia.edu/content/international-research
Notify ISERP if you are planning travel to any country on the sanctioned list. Additionally, notify us if your research in any country involves equipment because it may require a license.