The physical setup of both temporary and permanent structures at special events must comply with what?

The correct option focuses on the necessity for structures at special events to align with local building codes. Local building codes are essential because they provide guidelines and regulations that ensure the safety, health, and welfare of the public in a specific community. These codes take into account various factors such as occupancy type, structural integrity, fire safety, access for emergency personnel, and environmental considerations which are critical for both temporary and permanent structures.

Compliance with local building codes means that organizers must adhere to the specific requirements set by the local authority having jurisdiction. Such regulations ensure that any setup at special events meets the established standards for safety and usability. Failing to comply with these codes can lead to significant risks, including accidents, injuries, or even loss of life, and can also result in legal consequences for the event organizers.

While federal regulations, state laws, and international safety standards may also play a role in event planning and safety, the immediate responsibility rests with local building codes, making them the primary consideration for physical setups at events.