Public Health Institute (PHI) Niš was founded in 1900 and is the oldest preventive health care institution in the Balkans. As part of network of public health institutes in Serbia, research institution and educational base of Medical faculty University Nis for undergraduates and postgraduates, PHI provides services in the following areas: Microbiology with Parasitology and Virology, Epidemiology, Hygiene with human ecology , Medical informatics and biostatistics, analysis, planning and organization of health care and Health Promotion. The Institute has received the TUV SUD quality system certificate (register No 12 100 39069 TMS) and the ISO 9001:2008 certificate, and Center of Hygiene and human ecology of the Institute fulfills the requirements SRPS ISO-IEC 17025:2006 (accreditation certificate No 01-142). The Public Health Institute Niš strongly collaborates and is responsible for quality of 30 Serbian health facilities. With help of EU funded projects Treatment of Healthcare Waste, the Institute is performing healthcare waste management activities in accordance with the EU legislation and best practice guidelines. Also consulting, training, knowledge transfer and other forms of support for staff and local community involved in the medical waste management system have been provided. The PHI has 206 employees, among them 170 healthcare professionals (65 medical doctors).These high-qualified employees (29 Ph.D., 11 M.Sc. and 60 medical specialists) have been actively involved in the professional education and practice of all healthcare professionals. They are the authors of numerous scientific and professional publications and very active in the organization of different forms of continued medical education, also in the field of medical waste management. The scientific meeting “Days of preventive medicine” has been lasting for 48 years and passed a long way from a symposium up to the International congress, the only one of this kind in the Balkans. 26 employees of the Institute are lecturers on the Faculty of Medicine University of Niš and they were included in the curriculum development projects of different subjects, also for the basic professional studies for the title of sanitary ecological engineer (B.Sc.).