This document discusses pressure vessel accidents and safety approaches. It begins by defining pressure vessels and noting their importance in process and petrochemical industries. Several major pressure vessel accidents over history are described in detail, caused by factors like improper design, maintenance issues, and human error. These resulted in numerous fatalities and injuries. The document emphasizes the need for strict safety standards and codes during pressure vessel design, manufacture, inspection, repair and operation. Regular testing and monitoring is needed to detect any leaks or damage early to prevent accidents. Maintaining accurate records and training qualified workers can help reduce risks. While fully eliminating accidents may not be possible, adopting best practices and safety measures can lower their occurrence.