True or False: If a panelboard is wider than 30 inches, the workspace in front of it must extend its full width.

The statement is true because the National Electrical Code (NEC) requires that the workspace in front of panelboards, switchboards, and similar equipment must be of adequate dimensions to ensure safe operation and maintenance. Specifically, if a panelboard exceeds 30 inches in width, the workspace in front of it must indeed extend the full width of the panelboard to allow sufficient access to its components for service.

This requirement is crucial for maintaining safety and efficiency while working on electrical systems. Adequate space not only allows for safe operation but also minimizes the risk of accidents or injuries that could occur if someone had to work in a cramped or restricted area. The precise allowance for ergonomic access and effective interaction with the panelboard underlines the emphasis on safety regulations in electrical installations.

Regarding the other options: some may limit workspace requirements based on panelboard type, but the NEC mandates full-width space for any panelboard wider than 30 inches. The notion of these requirements applying only to commercial use is incorrect as they are applicable in residential settings as well.