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199 Firefighter Acronyms You Should Know

Writer: MAJESTIC FIRE APPAREL, INC.MAJESTIC FIRE APPAREL, INC.

When it comes to firefighting, there are some firefighting acronyms that you should familiarize yourself with. Although the use of acronyms in firefighting may no longer be recommended, it is still important to understand the different abbreviations in case someone on your crew still uses them. Below are commonly used fire service acronyms that you should know when entering the line of duty. 


  1. AAR - After Action Review

  2. ABC’s - Airway, Breathing, Circulation

  3. AC - Assistant Chief, Area Command, Alternate Current

  4. ACLS - Advanced Cardiac Life Support

  5. AED - Automated External Defibrillator

  6. AFFF - Aqueous Film Forming Foam

  7. AFG - Assistance to Firefighters Grant

  8. A-Fib - Atrial Fibrillation

  9. AHJ - Authority Having Jurisdiction

  10. ALOC - Altered Level of Consciousness

  11. ALS - Advanced Life Support

  12. AMS - Altered Mental Status

  13. APR - Air Purifying Respirators

  14. ARFF - Aircraft Rescue and Fire Fighting

  15. BA - Breathing Apparatus

  16. BC - Battalion Chief

  17. BI - Burn Index

  18. BLEVE - Boiling Liquid Expansion Vapor Explosion

  19. BLS - Basic Life Support

  20. BS - Breathing Support

  21. BVM - Bag Valve Mask

  22. CAD - Computer Aided Dispatch

  23. CAFS - Compressed Air Foam System

  24. CAMEO - Computer Aided Management for Emergency Operations

  25. CERT - Community Emergency Response Team

  26. CFAI - Commission on Fire Accreditation Information

  27. CFO - Chief Fire Officer

  28. CISD - Critical Incident Stress Debriefing

  29. CISM - Critical Incident Stress Management

  30. CO - Carbon Monoxide

  31. CO2 - Carbon Dioxide

  32. CPR - Cardiopulmonary Resuscitation

  33. CVA - Cerebrovascular Accident

  34. DC - Deputy Chief, Division Chief, District Chief, Direct Current

  35. Decon - Decontamination

  36. DNR - Do Not Resuscitate

  37. DOA - Dead on Arrival

  38. ED - Emergency Department

  39. EDITH - Exit Drills in the Home

  40. EFO - Executive Fire Officer

  41. EMS - Emergency Medical Services

  42. EMT - Emergency Medical Technician

  43. EOC - Emergency Operations Center

  44. EOP - Emergency Operations Plan

  45. ER - Emergency Room

  46. ERG - Emergency Response Guide

  47. ERT - Emergency Response to Terrorism

  48. ETA - Estimated Time of Arrival

  49. ETD - Estimated Time of Departure

  50. ETE - Estimated Time En Route

  51. EVOC - Emergency Vehicle Operator Course

  52. FADO - Fire Apparatus Driver Operator

  53. FAMA - Fire Apparatus Manufacturer’s Association

  54. FAST - Firefighter Assist and Search Team

  55. FC - Fire Chief or Fire Captain

  56. FD - Fire Department or Fire District

  57. FDC - Fire Department Connection

  58. FDIC - Fire Department Instructors Conference

  59. FDSOA - Fire Department Safety Officers Association

  60. FEMA - Federal Emergency Management Agency

  61. FF - Firefighter

  62. FFFP - Film Forming Fluoroprotein Foam

  63. FPD - Fire Protection District

  64. FPE - Fire Protection Engineer

  65. FRI - Fire Rescue International

  66. FTO - Field Training Officer

  67. GPM - Gallons per Minute

  68. GSW - Gunshot Wound

  69. HAZMAT - Hazardous Materials

  70. HAZWOPER - Hazardous Waste Operations and Emergency Response

  71. HELP - Heat Escape Lessening Position

  72. HEPA - High Efficiency Particulate Filter

  73. HM - Hazardous Materials

  74. HMMP - Hazardous Materials Management Plan

  75. HMRU - Hazardous Materials Response Unit

  76. HOT - Hands-on Training

  77. HR - Heart Rate

  78. HSO - Health and Safety Officer

  79. IAAI - International Association of Arson Investigators

  80. IABFF - International Association of Black Professional Firefighters

  81. IAFC - International Association of Fire Chiefs

  82. IAFF - International Association of Firefighters

  83. IAP - Incident Action Plan

  84. IC - Incident Commander or Ignition Component

  85. ICP Incident Command Post

  86. ICS - Incident Command System

  87. ICU - Intensive Care Unit

  88. IDLH - Immediate Danger to Life or Health

  89. IFBA - International Fire Buffs Association

  90. IFSAC - International Fire Service Accreditation Congress

  91. IFSTA - International Fire Service Training Association

  92. IRP - Incident Response Plan

  93. ISFSI - International Society of Fire Service Instructors

  94. ISO - Incident Safety Officer

  95. JFA - Joint Fire Academy

  96. LCES - Lookouts, Communications, Escape Routes, Safety Zones

  97. LDH - Large Diameter Hose

  98. LAL -Lightning Activity Level

  99. LFL - Lower Flammable Level

  100. LOC - Level of Consciousness or Loss of Consciousness

  101. LODD - Line of Duty Death

  102. LPG - Liquefied Petroleum Gas

  103. Lt. - Lieutenant

  104. LUNAR - Location, Unit Number, Name, Assignment, Resources Needed

  105. LZ - Landing Zone

  106. MA - Mutual Aid or Mechanical Advantage

  107. MAC - Multi-Agency Coordination

  108. MAU - Mobile Air Unit

  109. MCI - Mass Casualty Incident

  110. MCIP - Mass Casualty Incident Plan

  111. MICU - Mobile Intensive Care Unit

  112. MOI - Mechanism of Injury

  113. MVA - Motor Vehicle Accident

  114. MVC - Motor Vehicle Collision

  115. NAERG - North American Emergency Response Guide

  116. NBFSPQ - National Board of Fire Service Professional Qualifications

  117. NEC - National Electric Code

  118. NERT - Neighborhood Emergency Response Team

  119. NETC - National Emergency Training Center

  120. NFA - National Fire Academy

  121. NFC - National Fire Codes

  122. NFDRS - National Fire Danger Rating System

  123. NFFF - National Fallen Firefighters Foundation

  124. NFIRS - National Fire Incident Reporting System

  125. NFPA - National Fire Protection Association

  126. NHTSA - National Highway Traffic Safety Administration

  127. NICU - Neonatal Intensive Care Unit

  128. NIFC - National Interagency Fire Center

  129. NIMS - National Incident Management System

  130. NIOSH - National Institute for Occupational Safety and Health

  131. NKA - No Known Allergies

  132. NP - Nozzle Pressure

  133. NPS - National Park Service

  134. NRB - Non-Rebreather Mask

  135. NRC - National Response Center

  136. NREMT - National Registry of Emergency Medical Technician

  137. NVFC - National Volunteer Fire Council

  138. NWCG - National Wildfire Coordinating Group

  139. O2 - Oxygen

  140. OD - Overdose

  141. OEM - Office of Emergency Management

  142. OES - Office of Emergency Services

  143. OJT - On-the-Job Training

  144. OOS - Out of Service

  145. OSHA - Occupational Safety and Health Administration

  146. OR - Operating Room

  147. PALS - Pediatric Advanced Life Support

  148. PAR - Personnel Accountability Report

  149. PASS - Personal Alert Safety System

  150. PCF - Paid Call Firefighter

  151. PCR - Patient Care Report

  152. PD - Police Department

  153. PFD - Personal Flotation Device

  154. PHTLS - Prehospital Trauma Life Support

  155. PIA - Post Incident Analysis

  156. PIV - Post Indicator Valve

  157. PPE - Personal Protective Equipment

  158. PPV - Positive Pressure Ventilation

  159. PSA - Public Service Announcement

  160. PSI - Pounds per Square Inch

  161. PTA - Prior to Arrival

  162. PTSD - Post-Traumatic Stress Disorder

  163. RECEOVS - Rescue, Exposures, Confinement, Extinguishment, Overhaul, Ventilation, Salvage 

  164. RFA - Ready for Action

  165. RH - Relative Humidity

  166. RIC - Rapid Intervention Crew or Rapid Intervention Company

  167. RIT - Rapid Intervention Team

  168. ROS - Rate of Speed

  169. RR - Respiratory Rate

  170. RRT - Regional Response Team

  171. SAFER - Staffing for Adequate Fire and Emergency Response

  172. SAR - Search and Rescue or Supplied Air Respirator

  173. SCBA - Self Contained Breathing Apparatus

  174. SFM - State Fire Marshal

  175. SFMO - State Fire Marshal Office

  176. SO - Safety Officer

  177. SOB - Shortness of Breath

  178. SOG - Standard Operating Guidelines

  179. SOP - Standard Operating Procedure

  180. SPAAMFAA - Society for the Preservation And Appreciation of Antique Motor Fire Apparatus in America

  181. TBSA - Total Body Surface Area

  182. TC - Traffic Collision

  183. TIC - Thermal Imaging Camera

  184. TO - Training Officer

  185. UFC - Uniform Fire Code

  186. UFL - Upper Flammable Limit

  187. US&R - Urban Search and Rescue

  188. USFA - United States Fire Academy

  189. USFS - United States Forest Service

  190. UTL - Unable to Locate

  191. VES - Vent-Enter Search

  192. VFD - Volunteer Fire Department

  193. VS - Vital Signs

  194. WEL - Within Expected Limits

  195. WFCA - Western Fire Chiefs Association

  196. WFS - Women in the Fire Service

  197. WMD - Weapons of Mass Destruction

  198. WNL - Within Normal Limits

  199. WUI - Wildland Urban Interface


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