Should you make it clear in advance if the invitation is to a 'dry' event?

I think only one state (NJ) has a social host liability law and in that state, the host has to all but hand you your car keys and lift you in the car.

I’m with others. It’s not that I would be getting the shakes from having to go without alcohol for a few hours, but the tone of it would just piss me off as if the host is mothering me by telling me not to drink. I didn’t join an organization with a leader. If I want to have a few drinks, that’s my choice, not the Karen busybody who organized the event.