What must not be connected from a utility to a building until allowed by the B.O?

The correct answer indicates that none of the listed entities—utility, source of energy, or power—should be connected to a building until explicitly permitted by the building official (B.O.). This requirement is in place to ensure that all connections comply with safety, regulatory standards, and local codes before the building is occupied or used.

Permitting from the building official helps to confirm that the construction meets all structural and safety requirements, including electrical standards, which can be critical for the safety of occupants and the integrity of the building. Premature connections could lead to significant safety hazards, such as electrical fires or failures, particularly if the building does not yet meet code compliance.

Connecting utilities without the B.O.'s approval also may violate local building codes and regulations, leading to potential legal issues or fines. Thus, the primary focus of this regulation is public safety and adherence to established guidelines, ensuring that all necessary inspections and approvals have been completed.