General Discussion

attention.

Under the current Covid-19 restrictions, unless he has Swiss nationality (??), is a Swiss or Schengen Area resident, or has a legitimate business purpose, he will NOT be allowed to enter Switzerland.

https://ch.usembassy.gov/covid-19-info/

In relevant part ....

"Are U.S. citizens permitted to enter? YES, but not for tourism.
At this time the United States remains on the list of high-risk countries and U.S. citizens will remain subject to the current entry and transit restrictions. Contact the nearest Swiss Embassy or Swiss Migration Office (corona@sem.admin.ch) and your airline.
December 21, 2020: The Federal Council has introduced a general entry ban from today for all foreign nationals seeking to enter Switzerland from the UK and South Africa.
Transiting Switzerland from the United States to another country may not be possible depending on the final destination. Currently the Swiss Immigration Office does not allow individuals traveling from the United States or other high risk countries to transit Switzerland to another Schengen country, unless all entry requirements for Switzerland have been met. It may be possible to transit Switzerland from the United States or other high risk country to a non-Schengen country. Passengers transiting Switzerland from a high risk country, like the United States, to a Schengen country have been denied onward travel and returned to their country of origin. Travelers from high risk countries like the United States are encouraged to travel directly to their final Schengen destination without transiting Switzerland. For the most current restrictions and travel requirements, please see the FAQ page and the Swiss State Secretariat for Migration Office information page.
There is the possibility to enter Switzerland for important business meetings which cannot be postponed and must be in person. At this time, a special entry permit is needed to enter Switzerland for business travel from non-Schengen countries. This application can be sent directly to corona@sem.admin.ch, including for example the following documents: appointment confirmation, copy of passport, travel itinerary, reason for urgency of appointment/visit, and the reason for the need to be present personally."