This past Monday Switzerland introduced new Covid rules and a certificate requirement, specifically for certain situations:
This means that any travelers from the United States must have a Swiss-approved Covid Certificate in digital format (or paper though I wouldn't choose that) in order to enter restaurants and other establishments. The only issue is that specific details about how to request such a cert were not provided as part of the announcement. This has caused a bit of a scramble to find how to request, especially if anyone has travel planned.
Thankfully, some of the Cantons have already created links to submit for a certificate (which can be found via quick Google search). I took a chance on one link that now seems to be IP-restricted and after a three day wait was just issued my digital cert! I highly recommend submitting this as soon as possible if you have travel plans already in place for the fall. Hopefully my October conference remains on schedule!