As usual, Government advice on this is inconsistent but I agree that the basic provision is that members of the public must have access to council meetings and currently there is guidance that anything taking place in a "community centre" must require the wearing of masks. This is, of course, open to interpretation but one comment made earlier in the year was that in any event health and safety considerations take priority so if (and this is open to interpretation) the risk assessment suggests that allowing 100 members of the public to crowd into your meeting would represent too high a risk to those attending, I believe you can legitimately state that numbers attending might be limited because of the size of the room. We have this statement on the agenda for my council but have never had it tested (legally or in practice). In an ideal world, I guess, you would live stream your meetings which fulfils the objective of allowing public observation of the meeting but lets be honest, how many small parish councils have access to wifi in their rooms and/or the equipment, staffing and expertise to do this?