Hazard and Operability (HAZOP) study is based on the principle that several experts with different backgrounds can interact in a creative, systematic fashion and identify more problems when working together than when working separately and combining their results. Although the HAZOP method was originally developed for evaluation of a new design or technology, it is applicable to almost all phases of a process's lifetime. The essence of the HAZOP approach is to review process drawings and/or procedures in a series of meetings, during which a multidisciplinary team uses a prescribed protocol to methodically evaluate the significance of deviations from the normal design intention. The primary advantage of the brainstorming associated with HAZOP study is that it stimulates creativity and generates new ideas. This creativity results from the interaction of a team with diverse backgrounds. Consequently, the success of the study requires that all participants freely express their views, but participants should refrain from criticizing each other to avoid stifling the creative process. HSEConsulting offers full services of HAZOP sessions, such as providing competent HAZOP Facilitator/Leader and HAZOP Scribe for industrial projects and Oil&Gas installations.