Which type of partition is not required to have a fire-resistance rating?

A smoke partition is not required to have a fire-resistance rating because its primary function is to limit the movement of smoke within a building in the event of a fire. While smoke partitions help manage smoke spread for safety and evacuation, they do not necessarily need to withstand fire or provide a barrier to flames.

In contrast, fire partitions and rated partitions are specifically designed to provide fire-resistance, which means they can withstand the heat and flames of a fire for a designated period. These structures are integral to a building's fire safety strategy, aimed at protecting occupants and allowing for safe evacuation, while also minimizing property damage.