Final answer:
Regulations generally require an automatic sprinkler system in buildings with an occupant load of 30 or more located 75 feet or more above the lowest level of fire department vehicle access. The height is determined by the standard reach of fire department equipment.
Step-by-step explanation:
The question is about the requirement set in fire safety regulations regarding automatic sprinkler systems. The answer to this question might differ based on different local building codes and fire safety laws. However, commonly, an automatic sprinkler system is required in buildings where there is an occupant load of 30 or more located 75 feet or more above the lowest level of fire department vehicle access. The occupant load refers to the number of people for which the exit of a building is designed. The height of 75 feet is important because it is the standard height to which fire department apparatus, such as ladders on fire trucks, can extend to fight fires. For buildings above this height, an automatic sprinkler system can help control a fire and limit its spread before the fire department arrives.
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