This Practice provides general guidelines for the format, content, and development of Design Basis Documents, which are documents that outline the basis and technical requirements used for the design of a facility and execution of a project. Examples of Design Basis Documents include, but are not limited to, the Basis of Design (BOD) and Basic Engineering Design Data (BEDD) documents.
The Basis of Design document is specific to a project, and it specifies the technical requirements that the project design must follow, whereas the Basic Engineering Design Data document captures all the actual site and process data corresponding to a facility. On a greenfield project, the BOD is initially developed by the entity executing the engineering design, and upon completion of the project, the facility operator further develops and maintains the document as the BEDD through the life of the facility. On a brownfield project, the existing facility BEDD document serves as the foundational reference for developing the project-specific BOD.
Appendix A of this Practice outlines the differences between BOD and BEDD in terms of document objective, content, applicable project phase, and typical document authoring entity. This Practice provides general guidelines for the development of project Design Basis Documents. Individual applications may require different approaches than those recommended in this Practice.
