Which type of authority involves developing a detailed plan and gathering materials?

The correct answer focuses on the concept of "Build Authority," which encompasses the processes involved in developing a detailed plan and gathering materials necessary for construction. This type of authority is paramount in ship construction and project management as it ensures that all steps are carefully outlined and that the necessary resources are identified and procured.

Having build authority means setting a foundation for the construction project by preparing comprehensive plans that dictate how the construction will proceed, what materials are required, and how to efficiently gather those materials. It also involves coordinating the various elements of the project, ensuring that everything is in place for a smooth construction process.

In contrast, technical authority typically relates to the specialized knowledge or expertise needed to address engineering or technical issues that may arise, while in-service authority pertains to the guidelines and regulations that govern the operations and maintenance of the vessel once it is completed. Contract authority deals with the legal and formal agreements involved in securing resources and services required for the project. Each of these other types of authority plays a role in the overall project but does not specifically focus on the essential stages of planning and material procurement as build authority does.