Information for Foreign Nationals

IMPORTANT NOTE (SAO & Harvard)

While the Center for Astrophysics (CfA) includes both the Harvard College Observatory (HCO) and the Smithsonian Astrophysical Observatory (SAO) the processes in this site are specifically for SAO personnel, unless otherwise noted. Harvard has distinct processes that should be followed for any individual with a Harvard-only affiliation. 

Some information contained on this site, such as building maps, general information about the worksite area, etc. will be useful to all incoming personnel.

Entering the U.S. / Leaving the U.S.


Visa Information & Processes


General Information



Employees (including non-stipend postdocs)



Early Career Researchers (ECRs)

This category includes interns, visiting students, visiting scientists, predoctoral fellows, and postdoctoral fellows supported by stipends. Visa information for Early Career Researchers (aka ECRs, non-employee) is available on the CfA Fellowship Office page for "Awards & Benefits"


Misc. Resources & Info