35 providing labor relations services, namely, establishing committees with unions to promote improved relations between employers and unions for public and private school teachers, college and university faculty and professional staff, school bus drivers, custodians, secretaries, cafeteria workers, teacher assistants and aides, nurses and healthcare technicians; Lobbying services, namely promoting the interests of public and private school teachers, college and university faculty and professional staff, school bus drivers, custodians, secretaries, cafeteria workers, teacher assistants and aides, nurses and healthcare technicians, in the fields of legislation and regulation