No, there isn’t, but you’re right, there should be. That said, I can imagine the endless arguments about where it should be positioned, what it should say and how big (and in what font) the letters should be.
Bearing in mind that some strata schemes don’t even want to display the names and contact details of their committee members, this may be a can of worms that remains unopened.
Personally, I think every strata scheme of more than 50 units should have a mandatory static webpage that lists the committee members and the strata and/or building managers’ contact details. But then I’m just a 21st Century guy.