Theres 2 new mossies at the club and have no black bands and none of the existing ones have them too, why am i the black sheep. in the building rules is stats that the number can not be registered till the measuring is done and includes the bands.
The new boats would not have been measured yet. This will happen whenever the owners organise to get them measured - something they really shouldn't delay. The numbers are issued before the boat is built - they are not dependent on registration.
The older boats without bands either have never been raced at a state or national level and never measured or (more likely) the mast and/or boom have been replaced and the owner has been too slack to paint them on.
All boats at the national titles will have their bands measured. At the states it is at the discretion of the measurer.
Note that the band at the top of the mast is optional. If it's not there then the top of the mast is the limit.