Which manual governs Work Breakdown Structure?

The manual that governs Work Breakdown Structure is MIL-HNBK-881B. This handbook provides guidelines for developing the Work Breakdown Structure (WBS) for defense programs, ensuring that it effectively supports cost estimation, scheduling, and program management. The WBS serves as a foundational framework for organizing and defining the total scope of a project by breaking it down into manageable sections.

MIL-HNBK-881B emphasizes the importance of a well-structured WBS in achieving internal consistency and facilitating communication across various stakeholders involved in a program. By adhering to the standards outlined in this handbook, project managers can better manage resources, ensure that all components of the project are accounted for, and maintain clarity in project objectives and deliverables.

In contrast, the other manuals referenced do not specifically address the Work Breakdown Structure in the same comprehensive way.