One of the K3 specialization field activities is conducting visits to the workplace. On May 29, 2023 students of the Public Health Study Program, Faculty of Health Sciences (FIK) Muhammadiyah University of Surakarta (UMS) paid a visit to PT INKA Masiun. The visit was accompanied by Mrs. Salsabila Purnamasari, SKM., MPH. As a lecturer in the Industrial Hygiene Practicum course. The field visit activities explained students related to 5S (brief, neat, clean, caring, diligent), B3 (hazardous and toxic materials), SIMPEL (electronic environmental reporting information system) and the railway safety management system. The activity ran smoothly and the students were very enthusiastic about exploring new information that they could get from PT. INKA Madiun.