This specialized book "Project Management in Plant Engineering" covers all project phases of a typical project in plant engineering. The authors describe the individual services of project control. The proposals of the AHO series of publications No. 9 have established themselves as the performance profile and standard for project management in construction. Plant engineering requires specific approaches in systematic and methodological terms, despite many similarities. Accordingly, the DVP working group on plant engineering has taken on the task of developing a performance model that meets the industry-specific requirements for this business area. These services apply to the entire range of plant engineering projects. The book addresses the necessary need for standardization in the commissioning of services. The complete performance profile of project management is comprehensively presented in this work.