This research aimed to determine critical risks in the fishing operations of a vessel using an industrial purse seine net. The study measured the identification and analysis of compliance with the evaluation categories of the occupational health and safety management system (OHS-MS). National and international occupational health and safety standards and regulations were used to identify risks that could cause accidents. The IPER-C management tool determined the risks present in the operational processes of the fishing operation. The critical risks were mainly found in stage three (casting, hauling, packaging, and heaving), which had the highest number of risks at 59.6%, and stage four, which represented 65.6% of the total operational risks. The processes of lowering and herding the skiff, fish suction to the hold, and raising the skiff were the most hazardous, with values comparable to Spanish prevention standards and studies in Indonesia. Regarding the evaluation categories of the fishing company, an increase in the compliance level was observed, from 71.6% (Regular) in the initial evaluation to 80.8% (Good) in the final evaluation.