Which NFPA standard should be used for common and easily understood symbols when drawing a preincident plan?

• A. NFPA 170
• B. NFPA 13
• C. NFPA 101
• D. NFPA 70

Answer: (A)

Using standardized symbols on preincident plans ensures responders can quickly and accurately interpret building features and hazards. NFPA 170, the Standard for Fire Safety Symbols, defines the graphic symbols used on preincident plans and other fire department drawings. This common symbol set helps any responding crew understand layouts, locations of fire protection systems, occupancies, and hazards at a glance, which is critical during emergencies. Other NFPA standards cover different topics: NFPA 13 relates to sprinkler system design and installation, NFPA 101 addresses life safety code requirements for egress and occupancy, and NFPA 70 (National Electrical Code) governs electrical installations. They do not establish the standardized symbols used for preincident planning.