NFIRS 5.0 Element: ‘No Flame Spread or Same As First or Unknown’
Definition : Yes if no flame spread OR if the type of material that contributed most to flame spread is same as Material First Ignited (Block D4, Fire Module) OR if unable to determine.
Purpose : Knowing what type of material contributed most to flame spread is helpful in finding out why fires advance through a structure and understanding the rate at which fires develop. A study of this entry also aids in assessing the need for standards on the flammability of materials. This information can also be helpful to manufacturers for improving products.

Entry : Check or mark the box that indicates whether there is no flame spread OR if same as Material First Ignited (Block D4, Fire Module) OR if unable to determine.
Element Specification
Specification | Value |
---|---|
Requirement | Optional |
Expected Length | 1 |
Element Type | Yes/No – A (Y)es/(N)o flag. Note: This is case sensitive and must be capital Y or N. If the user has not provided information, a value of N should be transmitted (if no value is transmitted, N is assumed). |
Transactions containing ‘No Flame Spread or Same As First or Unknown’
The value of this element is captured by the following transaction :
Need more NFIRS help?
Here are some other useful ressources to learn more about NFIRS.
NFIRS Codes Cheat Sheet – NFIRS Coding – NFIRS Examples – FDIDs – POCs – NFIRS Transactions – NFIRS Modules – NFIRS Elements – NFIRS Rules – NFIRS Reference – NFIRS Compliant ?
You can also read this NFIRS 5.0 Complete Reference Guide, and NFIRS 5.0 Design Documentation in order to have a deeper understanding of NFIRS 5.0. Here are also NFIRS 5.0 Forms ready for you to download and use.
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Last Updated on May 4, 2023