Plans for projects involving less than how many cubic feet require suitable detailed plans and sketches?

The correct choice reflects the regulatory requirements that dictate when detailed plans and sketches are necessary for projects. In this context, projects involving less than 30,000 cubic feet are considered low-volume projects that may not require extensive planning documentation, but still necessitate some level of preparatory detail to ensure they comply with health and safety standards. This threshold balances the need for oversight with the practicalities of building management, ensuring that smaller projects are still adequately addressed without overwhelming administrative processes. Understanding this requirement is essential for administrators in managing project approvals and ensuring compliance with state regulations.