The Analysis of Occupational Health and Safety Risks in Engineering Workshop Using the Hazard Identification Risk Assessment and Determining Control (HIRADC) Method Hasianna Nopina Situmorang 1* , Hammuda Sitorus 2 , Firdaus 3 , Lisa Melvi Ginting 4 {hasiannanopina@unimed.ac.id 1 } Department of Mechanical Engineering Education, Faculty of Engineering, Universitas Negeri Medan, Medan, Indonesia Abstract. The potential for work accidents can occur in any work activities. Work accidents can be caused by unsafe conditions and unsafe actions. Several accidents occurred related to the works in the engineering workshop such as injuries, scratches, and being crushed by heavy materials that can occur accidentally caused by a lack of knowledge of work safety. This study aims to identify the potential for work accidents that occur in engineering workshop, and the actions taken to prevent them. The research was conducted at Family Workshop (engineering workshop for repairing vehicles) in North Sumatra. The steps taken include identifying potential sources of accidents and efforts to control these risks using Hazard Identification, Risk Assessment, and Determining Control (HIRADC) method. The results showed that the sources of hazards in the workshop had been identified, the risks of hazards in the workplace had been assessed, and efforts for control had been determined. There are 14 potential accident hazards contained in 10 work activities in workshop. Evaluation of the risk rating for potential hazards is classified as extreme, high, moderate, or low. Risk control is very effective in reducing the risk of accidents through the implementation of Occupational Health and Safety (OHS) risk control hierarchy method. Keywords: HIRADC Method, OHS, Risk Control, Engineering Workshop 1 Introduction Work in the workplace has potential hazards that can be caused by unsafe actions or unsafe conditions. These potential hazards need to be identified to obtain preventive measures with the aim of reducing and eliminating work accidents and minimizing the incidence of diseases resulting from the work. The strategy that can be done is through providing knowledge about Occupational Health and Safety (OHS) as a guarantee of safety and health protection for workers [1]. Data collection on work accident cases that occurred in Indonesia has been carried out by the Indonesian Employment Social Security Administration (BPJSK), showing the occurrence of work accident cases increasing from year to year in the 2017-2020 period [2]. A total of 123,040 cases of work accidents in 2017 and 173,415 cases in 2018, became 182,835 cases in 2019, and 221,740 cases in 2020. Work accident cases increased by 21.28% in 2020 compared to the previous year. The impact of this work accident is the emergence of work discomfort, production delays, and financial losses, namely the costs claimed for treatment and post-accident welfare [3]. An understanding of occupational safety needs to be possessed by workers and employers ACEIVE 2022, October 20, Medan, Indonesia Copyright © 2023 EAI DOI 10.4108/eai.20-10-2022.2328846