Now at mid-summer, we know that some Members of the ASCSA remain interested in coming to Greece for research. It therefore seemed useful to outline the current situation.

The continuing controls on international travel into Greece mean that U.S. citizens without a Greek residence permit (and who do not satisfy one of the other exemptions to the travel ban) are still prohibited from entering Greece. There are reports that Greece is planning to allow travel from the U.S. beginning in August, with travelers required to show proof of a negative COVID-19 test. These plans remain unconfirmed and liable to change. 
It has also been reported that U.S. citizens will be able to secure visas for travel to Greece beginning in August, following the usual procedure for members of a foreign archaeological school, but again no confirmation is available at this time. Further information on current travel regulations can be found HERE.
 
All travelers who are able to enter Greece—whether because they hold EU/Schengen Area citizenship or residence permit, are presently residing in a country whence travel to Greece is permitted, or meet some other criterion allowing entry—are currently required to fill out a "Passenger Locator Form" at least 24 hours before departure. The form and more information are available at https://travel.gov.gr.
Failure to submit the form will result in a fine upon arrival.
 
Also upon arrival, travelers from the U.S. should expect to be tested for COVID-19, although in practice testing has not been uniform. If you are tested, you will receive results (within 24 hours) only if the result is positive. If your test is negative, you will not be contacted.
 
The School is currently requiring newly arrived Members to self-isolate for one week (7 full days) before accessing School facilities. During this period, you are requested to exercise great caution in public: wear a mask whenever you go to the grocery store, for instance. In addition to School facilities, you must avoid contact with members and staff of the School during the period of self-isolation. When you first arrive at the School, please bring your stamped passport, boarding pass, or tickets to confirm observance of the requirement.
 
Note that the facilities of the School are available for members’ use, but only on an appointment basis. Please be in touch with the relevant department head to schedule access to the libraries, archives, etc.
 
Domestic travel within Greece is currently in full operation, generally with capacity reduced to allow for social distancing. You are required to wear a mask at all times while traveling by taxi, bus, train, plane, or ferry, and there are limits on the numbers of passengers allowed in cars (currently three including the driver for a standard car). Please feel free to contact Eric Driscoll (eric.driscoll@ascsa.edu.gr) if you require advice on itineraries or schedules for domestic travel or on entrance into the country.