fbpx

NFIRS Reference

NFIRS data grouped into modules (which match traditional old paper forms) split into transactions (separate lines) that contain blocks (groups) of elements (data fields.) Here are the NFIRS modules and their contents.

Basic Module

Transactions in the Basic Module :

Basic Incident Blocks

These blocks are collections of elements carried by the ‘Basic Incident’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
C Incident Type
B Address recorded on Wildland Module (Form)
D Aid Given or Received
E1 Alarm Date Time — Arrival Date Time — Incident Controlled Date Time — Last Unit Cleared Date Time
E2 Shift — Alarms — District
F Actions Taken
G1 Resource Module (Form) Used — Suppression Apparatus — EMS Apparatus — Other Apparatus — Suppression Personnel — EMS Personnel — Other Personnel — Resources Include Mutual Aid
G2 Property Loss — Contents Loss — Property Value — Contents Value
H1 Fire Service Deaths — Other Deaths — Fire Service Injuries — Other Injuries
H2 Detector Alerted Occupants
H3 Hazardous Material Released
I Mixed Use
J Property Use

Incident Address Blocks

These blocks are collections of elements carried by the ‘Incident Address’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
B Census Tract — Location Type — Number or Milepost — Street Prefix — Street or Highway Name — Street Type — Street Suffix — Apartment Number — City — State — Zip — Cross Street, Directions or National Grid

Aid Given Received Blocks

These blocks are collections of elements carried by the ‘Aid Given Received’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
D Fire Department ID – Receiving Aid — Fire Department State – Receiving Aid — Incident Number (Identifier) – Receiving Aid

Officer In Charge Blocks

These blocks are collections of elements carried by the ‘Officer In Charge’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
M Authority In Charge Personnel ID — Authority In Charge First Name — Authority In Charge Middle Initial — Authority In Charge Last Name — Authority In Charge Rank — Authority In Charge Assignment — Authority In Charge Date

Member Making Report Blocks

These blocks are collections of elements carried by the ‘Member Making Report’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
M Authority Reporting Personnel ID — Authority Reporting First Name — Authority Reporting Middle Initial — Authority Reporting Last Name — Authority Reporting Rank — Authority Reporting Assignment — Authority Reporting Date

Incident Remarks Blocks

These blocks are collections of elements carried by the ‘Incident Remarks’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
L1 Remarks

Special Study Blocks

These blocks are collections of elements carried by the ‘Special Study’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
E3 Special Study Sequence Number — Special Study Identification Number — Special Study Code

Fire Module

Transactions in the Fire Module :

Fire Blocks

These blocks are collections of elements carried by the ‘Fire’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
B1 Number Of Residential Units — Not Residential
B2 Number Of Buildings Involved
B3 Acres Burned (Outside Fires only) — Less than one Acre
C On Site Materials — Materials Storage Use
D1 Area of Origin
D2 Heat Source
D3 Item First Ignited
D3a Confined to Origin
D4 Type of Material
E1 Cause of Ignition
E2 Contributed to Ignition Factors
E3 Human Factors — Age of Person — Sex of Person
F1 Equipment Involved
H1 Mobile Property Involved
G Fire Suppression Factors

Fire – File attached Blocks

These blocks are collections of elements carried by the ‘Fire – File attached’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)

Fire Mobile Property Involved Blocks

These blocks are collections of elements carried by the ‘Fire Mobile Property Involved’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
H2 Mobile Property Type — Mobile Property Make — Mobile Property Model — Mobile Property Year — Mobile Property License Plate — Mobile Property State — Mobile Property VIN Number

Fire – Equipment Involved Blocks

These blocks are collections of elements carried by the ‘Fire – Equipment Involved’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
F1 Equipment Brand — Equipment Model — Equipment Serial Number — Equipment Year
F2 Equipment Power Source
F3 Equipment Portability

Structure Fire Module

Transactions in the Structure Fire Module :

Structure Fire Blocks

These blocks are collections of elements carried by the ‘Structure Fire’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
I1 Structure Type
I2 Building Status
I3 Building Height: Stories Above Grade — Building Height: Stories Below Grade
I4 Building Length — Building Width — Total Square Feet
J1 Fire Origin (Story #)
J2 Fire Spread
J3 Number of Stories with Damage: Minor — Number of Stories with Damage: Significant — Number of Stories with Damage: Heavy — Number of Stories with Damage: Extreme
K No Flame Spread or Same As First or Unknown
K1 Item Contributing To Spread
K2 Type Of Material Contributing To Spread
L1 Detector Presence
L2 Detector Type
L3 Detector Power
L4 Detector Operation
L5 Detector Effectiveness
L6 Detector Failure Reason
M1 Automatic Extinguishment System (AES) Presence
M2 Automatic Extinguishment System (AES) Type
M3 Automatic Extinguishment System (AES) Operation
M4 Number of Sprinklers Operating
M5 Automatic Extinguishment System (AES) Failure Reason

Civilian Fire Casualty Module

Transactions in the Civilian Fire Casualty Module :

Civilian Fire Casualty Blocks

These blocks are collections of elements carried by the ‘Civilian Fire Casualty’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
C Civilian Fire Casualty Sequence Number
B First Name — Middle Initial — Last Name — Name Suffix — Gender
D Person Age
E1 Race
E2 Ethnicity
F Affiliation
G Injury Date Time
H Severity
I Cause of Injury
J Human Factors
K Contributing Factors
L Activity when Injured
M1 Location at Time of Incident
M2 General Location at Time of Injury
M3 Story at Start of Incident
M4 Story when Injury Occurred
M5 Specific Location at Time of Incident
N Primary Apparent Symptom
O Primary Part Of Body Injured
P Disposition

Fire Service Casualty Module

Transactions in the Fire Service Casualty Module :

Fire Service Casualty Blocks

These blocks are collections of elements carried by the ‘Fire Service Casualty’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
C Fire Service Casualty Sequence Number
B Firefighter Identifier — First Name — Middle Initial — Last Name — Name Suffix — Gender — Fire Service Affiliation
D Age
E Injury Date Time
F Responses
G1 Usual Assignment
G2 Physical Condition
G3 Severity
G4 Taken To
G5 Activity At Time Of Injury
H1 Primary Apparent Symptom
H2 Primary Part Of Body Injured
I1 Cause Of Firefighter Injury
I2 Factor Contributing To Injury
I3 Object Involved In Injury
J1 Where Injury Occurred
J2 Injury Relation To Structure — Story Where Injury Occurred
J3 Specific Location Where Injury Occurred
J4 Vehicle Type
K1 Protective Equipment Contributed To Injury

Fire Service Casualty – Equipment Failure Blocks

These blocks are collections of elements carried by the ‘Fire Service Casualty – Equipment Failure’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
K1 Fire Service Casualty Sequence Number — Protective Equipment Sequence Number
K2 Protective Equipment Item
K3 Protective Equipment Problem
K4 Equipment Manufacturer — Equipment Model — Equipment Serial Number

Emergency Medical Service – Patient Module

Transactions in the Emergency Medical Service – Patient Module :

EMS Patient Blocks

These blocks are collections of elements carried by the ‘EMS Patient’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
B EMS Patient Sequence Number
C Arrived At Patient Date and Time — Patient Transfer Date and Time
D Provider Impression / Assessment
E1 Age
E2 Gender
F1 Race
F2 Ethnicity
G1 Human Factors
G2 Other Factors
H1 Body Sites of Injury
H2 Injury Types
H3 Cause of Illness/Injury
I Procedures Used
J Safety Equipment Used
K Pre or Post Arrival Arrest — Pre-Arrival Arrest Descriptors — Initial Arrest Rhythm
L1 Initial Level of Care
L2 Highest Level of Care
M Patient Status — Pulse on Transfer
N EMS Disposition

Hazardous Materials Module

Transactions in the Hazardous Materials Module :

Hazardous Materials Blocks

These blocks are collections of elements carried by the ‘Hazardous Material’ transaction.

Hazardous Material Chemical Blocks

These blocks are collections of elements carried by the ‘Hazardous Material Chemical’ transaction.

Hazardous Material Mobile Property Involved Blocks

These blocks are collections of elements carried by the ‘Hazardous Material Mobile Property Involved’ transaction.

Hazardous Material Equipment Involved Blocks

These blocks are collections of elements carried by the ‘Hazardous Material Equipment Involved’ transaction.

Wildland Fire Module

Transactions in the Wildland Fire Module :

Wildland Fire Blocks

These blocks are collections of elements carried by the ‘Wildland Fire’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
B Latitude — Longitude — Township — Township Direction – North/South — Range — Range Direction – East/West — Section — Subsection — Meridian
C Area Type
D1 Wildland Fire Cause
D2 Human Factors Contributing
D3 Factors Contributing To Ignition
D4 Fire Suppression Factors
E Heat Source
F Mobile Property Type
G Equipment Involved In Ignition
H NFDRS Weather Station ID — Weather Type — Wind Direction — Wind Speed — Air Temperature — Relative Humidity — Fuel Moisture — Fire Danger Rating
I1 Number of Buildings Ignited
I2 Number of Buildings Threatened
I3 Total Acres Burned
I4 Primary Crop Burned #1 — Primary Crop Burned #2 — Primary Crop Burned #3
J Undetermined Acres Burned Percentage (%) — Tax Paying Acres Burned Percentage (%) — Non-Tax Paying Acres Burned Percentage (%) — City Town Village Local Acres Burned Percentage (%) — County or Parish Acres Burned Percentage (%) — State or Province Acres Burned Percentage (%) — Federal Acres Burned Percentage (%) — Foreign Acres Burned Percentage (%) — Military Acres Burned Percentage (%) — Other Acres Burned Percentage (%) — Property Management Ownership — Federal Agency Code
K NFDRS Fuel Model At Origin
L1 Person Responsible For Fire
L2 Gender
L3 Person Age
L4 Activity of Person
M Horizontal Distance From Right Of Way — Type of Right of Way
N Elevation — Relative Position on Slope — Aspect — Flame Length — Rate of Spread

Apparatus (or Resources) Module

Transactions in the Apparatus (or Resources) Module :

Apparatus Blocks

These blocks are collections of elements carried by the ‘Apparatus’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
N/A Apparatus Sequence Number — Apparatus ID — Apparatus Type — Apparatus Dispatch Date/Time — Apparatus Arrival Date/Time — Apparatus Clear Date/Time — Number of People — Apparatus Use — Apparatus Actions Taken

Personnel Module

Transactions in the Personnel Module :

Personnel Blocks

These blocks are collections of elements carried by the ‘Personnel’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
N/A Apparatus Sequence Number — Personnel Sequence Number — Personnel ID — First Name — Middle Initial — Last Name — Rank — Personnel Actions Taken

Arson Module

Transactions in the Arson Module :

Arson Blocks

These blocks are collections of elements carried by the ‘Arson’ transaction.

Arson Agency Referral Blocks

These blocks are collections of elements carried by the ‘Arson Agency Referral’ transaction.

Arson Juvenile Subject Blocks

These blocks are collections of elements carried by the ‘Arson Juvenile Subject’ transaction.

Supplemental Module

Transactions in the Supplemental Module :

Incident Person Involved Blocks

These blocks are collections of elements carried by the ‘Incident Person Involved’ transaction.

Special Study Blocks

These blocks are collections of elements carried by the ‘Special Study’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
E3 Special Study Sequence Number — Special Study Identification Number — Special Study Code

Incident Remarks Blocks

These blocks are collections of elements carried by the ‘Incident Remarks’ transaction.

Block  Elements 
A Fire Department ID — Fire Department State — Incident (Alarm) Date — Incident Number (Identifier) — Exposure Number — Record Type/Transaction Code — Transaction Type (Add, Update, Delete)
L1 Remarks

Fire Department Module

Transactions in the Fire Department Module :

Fire Department Header Blocks

These blocks are collections of elements carried by the ‘Fire Department Header’ transaction.

Block  Elements 
A
N/A Fire Department ID — Fire Department State — Record Type/Transaction Code — Transaction Type (Add, Update, Delete) — Fire Department Name — Fire Department Street Number or Milepost — Fire Department Street Prefix — Fire Department Street or Highway Name — Fire Department Street Type — Fire Department Street Suffix — Fire Department City — Fire Department Zip — Fire Department Phone — Fire Department Fax — Fire Department E-mail — Fire Department FIPS County Code — Number of Stations — Number of Paid Firefighters — Number of Volunteer Firefighters — Number of Volunteer Paid Per Call

Fire Department Apparatus Blocks

These blocks are collections of elements carried by the ‘Fire Department Apparatus’ transaction.

Block  Elements 
A
N/A Fire Department ID — Fire Department State — Record Type/Transaction Code — Transaction Type (Add, Update, Delete) — Apparatus Sequence Number — Apparatus ID — Apparatus Type — Apparatus Name — Apparatus First In Service Date

Fire Department Personnel Blocks

These blocks are collections of elements carried by the ‘Fire Department Personnel’ transaction.

Block  Elements
A
N/A Fire Department ID — Fire Department State — Record Type/Transaction Code — Transaction Type (Add, Update, Delete) — Firefighter Sequence Number — Firefighter Personnel ID — Firefighter First Name — Firefighter Middle Initial — Firefighter Last Name — Firefighter Rank — Firefighter Phone1 — Firefighter Phone2 — Firefighter Email

Last Updated on April 13, 2023