All University-related travel, both international and domestic, is prohibited until further notice and should not be planned or scheduled at this time. Harvard also strongly discourage personal travel, both international and domestic.  

If you are vaccinated:
You can resume activities on campus with a negative COVID-19 test

If you are not vaccinated:
you can only resume activities on campus if:
You test negative TWICE – immediately upon your return and again 6-8 days later (you can come on campus to pick-up and drop off test kits)
OR you self-quarantine for 14 days