When is it permissible to display the flag continuously throughout the night?

Displaying the flag continuously throughout the night is permissible when the flag is properly illuminated. This ensures that the flag is visible and treated with the respect it deserves at all times, even after sunset. Illuminating the flag with sufficient lighting allows it to be displayed in accordance with the flag code. This practice demonstrates honor and respect for the symbol of the nation, as the flag represents the values and ideals that it stands for.

Other options present scenarios that do not align with the protocols for flag display. While special ceremonies may warrant the flag being displayed prominently, they do not specifically address the nighttime display requirements. National holidays often involve flag display, but they do not inherently allow for the continuous display overnight without proper illumination. The idea that the flag must always be taken down at night contradicts the protocols as long as adequate lighting is provided. Thus, the correct condition for displaying the flag at night hinges on ensuring it is appropriately illuminated.