We are grappling with this right now. In our state (North Carolina) nothing mandates an in-person meeting, just that proper notice be given and "Roberts Rules" be used to govern the meeting (largely disregarded in my experience). While in the past, we've always done so at a local meeting room (either the local fire department hall or the public library), this year, the board is going to sit in one of our hangars. Anybody who feels they must attend in person can do so (socially distant in the space). The rest can attend via Zoom meeting.