 On May 29, 1962, four window cleaners were killed when a scaffold fell at the Equitable Life Building.In 1993 Local 32BJ, the New York window cleaners' union, launched an apprentice training program, increasing job safety among its members, although increasing numbers of New York window cleaners are non-unionized.Unlike in Scotland, there is no government licensing in the United States, England or Wales - this means anyone can claim to be a window cleaner.