 Reference to LP-Gas Tank Separation Requirements:

The International Fire Code (IFC 2021), Table 6104.3, provides minimum separation distances for above-ground LP-gas tanks based on capacity and proximity to each other or property lines.

According to Table 6104.3, for an LP-gas tank with a 501-gallon capacity located near a 250-gallon tank, the required minimum separation distance from adjoining property is 10 feet.

 Why Separation Distance is Important:

LP-gas is highly flammable, and inadequate separation distances increase the risk of fire spread and explosion hazards.

Proper spacing ensures safety for occupants, emergency responders, and nearby properties.

 Clarification of Incorrect Answer Choices:

A. 5 ft. → Incorrect

Too close per IFC 6104.3; does not meet safety requirements.

C. 20 ft. → Incorrect

20 feet is required for larger tanks, but not for the combined 501-gal. and 250-gal. tank setup.

D. 25 ft. → Incorrect

Greater than the required minimum; while more distance is safer, IFC mandates a minimum of 10 feet.

 Conclusion:

The correct and verified answer is B (10 feet) based on IFC 6104.3, ensuring safe LP-gas tank separation from adjoining properties.