Which of the following is prohibited in a Place of Assembly?

The prohibition of compressed natural gas and flammable liquids in a Place of Assembly is based on safety regulations designed to minimize the risk of fire and explosion. Such materials are highly volatile and can pose significant dangers to the occupants of an assembly space, especially in large gatherings where crowd movements can lead to accidental spills or exposure. Maintaining a safe environment in places designed for large groups of people is paramount, and the presence of these materials can easily breach safety protocols.

In contrast, while electric generators may have restrictions depending on their use and location within the assembly area, they are not universally prohibited. Food vendors are often allowed as long as they adhere to health and safety regulations. Petroleum jelly, while flammable, poses considerably less risk in typical usage scenarios, especially when compared to compressed natural gas and flammable liquids. Therefore, the emphasis on banning compressed natural gas and flammable liquids is rooted in the need to ensure crowd safety and prevent hazardous situations from arising in public assemblies.