This course provides an overview of the use of pump systems in the chemical process industries, including applications and pump technology discussions. Afterward, the major hazards associated with pump operation are discussed. For each major hazard that is controlled through the use of SIS, the course provides a detailed discussion of the analysis of the risk posed by those hazards, using layer of protection analysis as the analysis technique. The discussion includes the hazard prevented, consequence estimation, typical initiating events and typical independent protection layers utilized to reduce risk.