When the occupancy load exceeds 29, which occupancy group requires two exit access doorways?

In the context of occupancy load and life safety, the requirement for two exit access doorways when the occupancy load exceeds 29 applies specifically to certain occupancy groups to ensure safe egress during emergencies.

For assembly occupancies, which include spaces used for gatherings such as theaters, auditoriums, and meeting rooms, the code dictates that when the occupancy load exceeds 49, two exit access doorways are required. This is to reduce the risk of overcrowding at exits during an emergency situation.

In mercantile spaces, designed for the retail and display of goods, the requirement for two exits generally comes into play at a higher threshold of occupancy load.

The storage occupancy group typically doesn't necessitate two exit access doorways until the occupancy reaches a much higher threshold, depending on the specific use and configuration of the space. Therefore, while storage spaces may have safety requirements, they do not mandate two exits at the 29-person mark.

Thus, the selection of storage as the answer reflects a misunderstanding; rather, the correct focus should be on assembly as the occupancy group that requires two exit access doorways once the occupancy exceeds the threshold noted.