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The latest edition of the NFPA Glossary of Terms (GOT) is available for FREE online. Visit to download your copy.


The GOT is a list of the defined terms in all of NFPA's published codes, standards, guides and recommended practices. The 14,575 terms are listed alphabetically and assembled into a free PDF available on the NFPA website. The document is used in a number of ways. It helps NFPA Technical Committees who are looking to define new terms or compare existing terms. It also helps members of the public who are interested in learning about how NFPA documents define specific terms. The Glossary of Terms Advisory Committee helps regulate the number of unnecessary duplicate definitions to try and make the GOT easier to use. The GOT contains the following details about each term:


Term: The word being defined.

Definition:The description of the term.

Document (Edition): Where the term and definition are found (document #) and the edition year of that document.

Document Defining Same Term: A list of all documents that also define the same term.

Document Using Same Definition: A list of all documents that also define the same term in the exact same way.


See the figure below for an example of how the GOT is organized. The term "Barrel" is defined in four documents: NFPA 1, NFPA 30, NFPA 59A, and NFPA 80.  NFPA 1 and NFPA 30 both define the term in the exact same way. The first 3 definitions refer to a unit of volume while the last definition, from NFPA 80, refers to a rolling steel door component. To learn more about any of the documents defining a term, visit the NFPA Document Information Pages. (Example for NFPA 80 -


NFPA Wildfire Standards

Posted by ryandepew Employee Jun 17, 2015

Interested in learning more about managing the wildland-urban interface fire problem with the help of NFPA standards?  Check out the NFPA Journal article Wildfire Standards...


A firefighter frees a dog from a kennel threatened by wildfire in Southern California in August. NFPA standards cover many aspects of wildland fire operations, including protective clothing and equipment. (Photograph: AP Wide World /Al Cuizon/The Sun)


Backyards and Beyond 2015

Posted by ryandepew Employee Jun 17, 2015

The loss of lives, homes and businesses in recent wildfires across California, Arizona and Colorado and in many other states around the country serves as a sobering reminder of the destructive effects of wildfire. It is not a matter of if a wildfires strikes an area but when, and many residents are looking for more information about what they can do to reduce their risk when the next wildfire burns.

NFPA’s bi-annual Backyards & Beyond Wildland Fire Education Conference is a great place for community leaders, researchers, insurance professionals, emergency responders, homeowners and others involved in wildfire safety and preparedness to share their knowledge and best practices on key wildfire issues that they can then take back to their communities and workplace



Video: NFPA's Michele Steinberg talks about the speakers and topics at Backyards & Beyond, as well as pre-conference seminar offerings on October 20-21.


Registration is now open!

Fire Protection Research Foundation report: "Pathways for Building Fire Spread at the Wildland Urban Interface"
Author: Michael J. Gollner, Raquel Hakes, Sara Canton and Kyle Kohler, University of Maryland
Date of issue: March 2015


Fires in the WUI communities are a rapidly growing problem in the US. The last 15 years contains six of this century’s top ten most damaging U.S. single fire events; all of these events occurred in WUI communities. Over 46 million homes in 70,000 communities are at risk of WUI fires (Bailey, 2013). Since 2000, over 38,000 homes have been lost to WUI fires in the U.S.


There are many potential pathways for wildland fires to ignite buildings within the WUI. These pathways (including both fire and ember exposure) depend on the characteristics of the wildland (e.g., fuels, terrain, weather, etc.), the characteristics of the community (e.g., construction materials, building designs, housing density, landscaping, etc.), and the characteristics of the interface (e.g., separation distance, physical barriers, extent of perimeter, etc.).


NFPA Standard 1144, Standard for Reducing Structure Ignition Hazards from Wildland Fire, and NFPA 1141, Standard for Fire Protection Infrastructure for Land Development in Wildland, Rural, and Suburban Areas, address hazards to structures at the wildland interface and appropriate mitigation measures (NFPA, 2013; 2012). Understanding the pathways above and their contribution to fire risk will help inform future editions of these NFPA standards.  The goal of this project is to identify pathways for fire spread at the wildland urban interface and identify gaps in information to inform prevention and protection strategies.


Download the executive summary or read the full report at the link above.

If an NFPA Standard receives no Notice of Intent to Make a Motions (NITMAMs) that result in one or more Certified Amending Motions, the Standard is considered a Consent Standard. A Consent Standard is not presented at the NFPA Technical Meeting (Tech Session) and is, instead, forwarded directly to the NFPA Standards Council for issuance (See Regulations Governing the Development of NFPA Standards, Section


The following list of 27 Standards in the Annual 2015 revision cycle received no NITMAMs and have been issued by the Standards Council on May 26, 2015 as Consent Standards:


  • NFPA 2, Hydrogen Technologies Code
  • NFPA 13D, Standard for the Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes
  • NFPA 20, Standard for the Installation of Stationary Pumps for Fire Protection
  • NFPA 40, Standard for the Storage and Handling of Cellulose Nitrate Film
  • NFPA 55, Compressed Gases and Cryogenic Fluids Code
  • NFPA 73, Standard for Electrical Inspections for Existing Dwellings
  • NFPA 80, Standard for Fire Doors and Other Opening Protectives
  • NFPA 101A, Guide on Alternative Approaches to Life Safety
  • NFPA 105, Standard for Smoke Door Assemblies and Other Opening Protectives
  • NFPA 110, Standard for Emergency and Standby Power Systems
  • NFPA 111, Standard on Stored Electrical Energy Emergency and Standby Power Systems
  • NFPA 150, Standard on Fire and Life Safety in Animal Housing Facilities
  • NFPA 160, Standard for the Use of Flame Effects Before an Audience
  • NFPA 291, Recommended Practice for Fire Flow Testing and Marking of Hydrants
  • NFPA 303, Fire Protection Standard for Marinas and Boatyards
  • NFPA 307, Standard for the Construction and Fire Protection of Marine Terminals, Piers, and Wharves
  • NFPA 400, Hazardous Materials Code
  • NFPA 409, Standard on Aircraft Hangars
  • NFPA 415, Standard on Airport Terminal Buildings, Fueling Ramp Drainage, and Loading Walkways
  • NFPA 556, Guide on Methods for Evaluating Fire Hazard to Occupants of Passenger Road Vehicles
  • NFPA 557, Standard for Determination of Fire Loads for Use in Structural Fire Protection Design
  • NFPA 820, Standard for Fire Protection in Wastewater Treatment and Collection Facilities
  • NFPA 1126, Standard for the Use of Pyrotechnics Before a Proximate Audience
  • NFPA 1221, Standard for the Installation, Maintenance, and Use of Emergency Services Communications Systems
  • NFPA 1730, Standard on Organization and Deployment of Fire Prevention Inspection and Code Enforcement, Plan Review, Investigation, and Public Education Operations to the Public
  • NFPA 1906, Standard for Wildland Fire Apparatus
  • NFPA 1953, Standard on Protective Ensembles for Contaminated Water Diving

Three NFPA Standards, reporting in the Annual 2015 revision cycle, were previously issued by the NFPA Standards Council on July 14, 2014 as Consent Standards as they received no comments and the Committee determined that no second revisions were needed:  NFPA 318, Standard for the Protection of Semiconductor Fabrication Facilities, NFPA 423, Standard for Construction and Protection of Aircraft Engine Test Facilities, and NFPA 1071, Standard for Emergency Vehicle Technician Professional Qualifications.


Read the agenda for other Annual 2015 NFPA Standards that will be presented for action at the NFPA Technical Meeting on June 24-25, 2015 at the NFPA Conference & Expo in Chicago.

July 6, 2015 is the closing date for submitting Public Input for the next edition of NFPA 5000 - Building Construction and Safety Code.


The Core Committees will review all public input at their First Draft Meetings which will be held July 27th thru noon on July 31st at:


InterContinental Milwaukee

139 E Kilbourn Avenue

Milwaukee, WI 53202

(414) 276-8686 (Reservations)


All meetings are open to the public. For more information, click:

In these tough economic times, many companies are shying away from constructing new customized storage facilities and are scooping up empty warehouses for dimes on the dollar. In some cases, they aren’t even purchasing new space, but repurposing existing warehouse space to accommodate new products or new storage operations. The problem is that many of these owners do not understand that storage sprinkler protection is not one-size-fits-all.


This is especially true when looking at older buildings that use smaller K-factor sprinklers. Without the proper analysis of the existing system’s capabilities compared to the new hazards being presented, the result can be a significantly deficient system. In many instances, system deficiencies are caught during the permitting of the building as the new certificate of occupancy is being issued. Unfortunately, there are many cases where the authority having jurisdiction (AHJ) has not been trained on the new storage requirements, and the sprinkler protection scheme gets lost in the shuffle.

More common are the instances where the AHJ is never involved, and, as a consequence, there is no regulatory review of a change in storage hazard. This is typical when building owners change one or more of the criteria associated with the development of a sprinkler protection scheme for the storage hazard.

NFPA 25 require the owner to take proper steps to confirm that the sprinkler system can handle the storage arrangements present whenever a change in hazard occurs. A review of the sprinkler system for effectiveness should be conducted wherever there is a change in one or more of the critical characteristics that drive sprinkler system design for storage areas. These changes include, but are not limited to, commodity classification change; change in storage height; change in clearance to ceiling; change in packaging, such as encapsulated to exposed; the addition of solid shelving; change in storage type, such as from shelf storage to rack storage; and change in pallet type.


Larger companies may have someone on staff to handle such analyses, but many smaller companies would need to contract with someone to conduct the analysis, if they were even aware that such action was necessary. Some owners believe it is the role of the AHJ or the inspector performing the NFPA 25 inspection to identify deficiencies in protection associated with storage commodities and arrangements, but NFPA 25 clearly defines this as an owner’s responsibility.

In some cases, the sprinkler system design might be appropriate for the commodity being stored and the storage arrangement being used, but changes in storage operation can limit system effectiveness. Optimizing rack loading is becoming more and more critical to many owners trying to maximize their warehouse volumes. In maximizing the efficiency of their rack loads, however, owners can unknowingly block flue spaces or, where in-rack sprinklers are used, create obstructions to the sprinkler spray pattern, compromising an otherwise properly designed system. In addition to large changes in which new product or new racking is used, it is important to understand that even small changes such as rack optimization can have a major impact on sprinkler system effectiveness.

Making the most of available storage space can be cost-effective, but failing to understand if the sprinkler system is properly designed when taking into account variables associated with stored goods can be costly.