Fuel oil storage tanks inside buildings may require no special fire protection features if their capacity is less than which amount?

The correct answer is based on specific fire safety regulations regarding the storage of fuel oil tanks within buildings. Fuel oil tanks with a capacity of less than 660 gallons typically do not require special fire protection features. This allowance reflects an understanding of risk management and fire safety; larger tanks inherently pose a greater risk of fire and environmental hazards due to their increased potential for spills, leaks, or combustion.

Regulatory frameworks often consider the capacity threshold of 660 gallons as a critical point for necessitating additional protective measures, as tanks below this size are statistically less likely to create significant fire hazards in relation to their stored volume. Thus, for developers, engineers, and fire safety officials, compliance with this guideline means that smaller tanks can be integrated into building designs without the complexities and costs associated with additional fire protection systems.