NERIS replaced NFIRS in 2026.
See our NERIS resources.
NFIRS 5.0 Element: ‘Type of Material’
Also known as: ‘Type of Material First Ignited’
Definition: The composition of the material in the item first ignited by the heat source. The type of material ignited refers to the raw, common, or natural state of the material. The type of material ignited may be a gas, flammable liquid, chemical, plastic, wood, paper, fabric, or any number of other materials.
NFIRS 5.0 relational edit validation rules are provided to ensure NFIRS data is consistent and correct for the fire/reporting concepts that are being modeled. Relational edits determine relationships between multiple fields / elements. These are the rules for ‘Type of Material’.
Coded Field - The coded field relating to an entry in the code table. Most coded fields allow for Plus+ One codes. For these fields the expected length of the coded entry is depicted as (National length OR Plus+ One length). Only fields with this notation in the expected length column allow for Plus+ One definitions. If the user has not provided information, an empty field should be transmitted.