With an all-new symbol for tornado and other changes, the 2018 edition of NFPA 170 works to standardize fire safety symbols for better communication.

Revised for clarity and to help standardize the use of symbols, the 2018 edition of NFPA 170: Standard for Fire Safety and Emergency Symbols presents uniform symbols used for fire safety, emergency, and associated hazards.

NFPA 170 provides designers, engineers, architects, and emergency planners with key information -- including the new symbol for tornado.

The Standard provides symbology for emergency management mapping, and emergency evacuation diagrams and plans. This edition includes:

• The all-new symbol for tornado
• Updated references
• Revised terms, including smoke barrier changed to smoke rated, and fire barrier changed to fire rated
• Added details to the symbols for a fire department connection
• A distinction between water-driven and electric-driven water flow alarms

Use NFPA 170 to improve communication between building occupants, designers, installers, and first responders.

This edition is essential for the fire service, as well as for architectural and engineering drawings, insurance diagrams, fire fighting operations, and pre-incident planning sketches. Annexes provide explanatory material and symbols for life safety planning.