What is Standard Note 3?

• A. Loss of Power
• B. Loss of System
• C. Loss of Water
• D. Loss of Air

Answer: (C)

Standard Notes in CSOSS are predefined responses for specific abnormal conditions, so crews can act quickly using established procedures. This item asks which condition Standard Note three covers. It is the loss of water, because this note is the designated response for a water supply failure. Water is essential for drinking, cooking, sanitation, firefighting, and certain cooling functions, so SN three focuses on preserving life support and essential operations, isolating the affected portions of the water system, and moving toward restoration or alternative supply. Other potential failures like power, a general system loss, or air loss are handled by different notes with their own procedures, not by this one.