What is the maximum capacity allowed for a non-engineered tank system located outside a building?

The maximum capacity allowed for a non-engineered tank system located outside a building is 1320 gallons. This regulation is designed to ensure the safety and environmental protection of the surrounding area. Tanks above this capacity must meet more stringent engineered system requirements to mitigate risks associated with leakage, spills, and environmental hazards.

Understanding this limit is critical for compliance with state regulations regarding fuel storage, and it reflects wider efforts to manage and minimize potential environmental impacts from fuel storage systems. This capacity threshold helps prevent larger environmental disasters that could occur with larger, unregulated tank systems.