If there is to be a release of fewer balloons than the local police or local airfield (if release is within a five-mile radius) should be informed.
Os bwriedir rhyddhau llai na hynny o falwnau dylid rhoi gwybod i’r heddlu lleol neu’r maes awyr lleol (os bwriedir eu gollwng i'r awyr o fewn cylch o 5 milltir i faes awyr).