What minimum rating is required for extinguishers at fueling operations?

• A. 10-A:B
• B. 20-A:C
• C. 20-B:C
• D. 30-B:C

Answer: (C)

For fueling operations, the minimum rating required for fire extinguishers is 20-B:C. This rating indicates that the extinguisher is designed to effectively combat flammable liquid fires (as indicated by the "B" classification) and also has a class "C" capability, which means it can be used on electrical fires without conducting electricity.

Fueling operations pose significant risks due to the presence of flammable liquids and the ongoing potential for electrical ignition sources. Thus, having extinguishers with a suitable rating like 20-B:C is essential for ensuring safety and effective fire response in such environments. The "20" component of the rating implies that the extinguisher can handle larger fires, making it more effective in scenarios that could involve substantial quantities of flammable material.

This rating is essential not only for compliance with safety regulations but also for ensuring that fire response teams can effectively and quickly extinguish a fire, minimizing damage and risk to personnel and equipment.