Cleaning supervisors supervise and co-ordinate the activities of workers in the following unit groups: Light Duty Cleaners (6731), Specialized Cleaners (6732), and Janitors, Caretakers and Building Superintendents (6733). Cleaning supervisors are employed by hospitals and other health care institutions, hotels, motels, schools and other educational institutions, commercial and industrial establishments, home and office cleaning establishments and by various specialized cleaning companies.