The high number of work accidents due to human error or other factors is one the needs to be considered in the framework of both industry and educational institutions. This study is intended to determine the effectiveness of the level of implementation of Occupational Health and Safety (OHS) regulations in vocational schools in Surakarta. This research used research method developed by Stufflebeam, that was CIPP model (Context, Input, Process, Product). The population in this study was all vocational students in Surakarta. The sample was 217 students with purposive sampling technique in 4 places namely SMK Negeri 2 Surakarta, SMK Negeri 5 Surakarta, SMK Pancasila Surakarta, and SMK Purnama Surakarta. The data was collected using interviews, observation, documentary studies and questionnaires. Data analysis for qualitative data used interactive analysis model and the quantitative data used assessment criteria. The results showed that, Context: (1) There is no official who joined OHS (2) The absence of detailed division of tasks. Input: (1) There is no system integrated with the school structure, (2) No officers are trained in OHS field, (3) OHS facility has standards with a percentage equal to 68,2%. Process: (1) The use of OHS infrastructure belongs to high category with the percentage of 59,9%. (2) Student motivation and awareness of OHS belong to high category with a percentage of 68,2%. (3) OHS materials have been processed in basic subjects, only less training. Product: The implementation of OHS in School workshop belongs to high category with percentage of 82,5%.