Name Acronym Description
Emergency action code EAC

Designed to cover the first vital step and gives an immediate indication of any actions that could be taken should it be necessary, without the use of reference materials or expert advice. (Also known as HAZCHEM).

Emergency Reference Levels ERLs

Quantitative criteria used to plan for the introduction of urgent countermeasures in the event of a nuclear emergency.

Emergency Services Collaboration Working Group

Working group comprising senior leaders from the Association of Ambulance Chief, Executives (AACE), Association of Chief Police Officers (ACPO), Association of Police and Crime Commissioners (APCC), College of Policing, Chief Fire Officers Association (CFOA) and the Local Government Association (LGA) on behalf of Fire Authorities

Emergency Traffic Management

Temporary traffic management using limited traffic management resources to: provide short term protection to those dealing with or involved in the incident, prevent escalation, protect and give direction to traffic approaching the scene, protect a scene of a crime, manage incident related congestion.

End of life vehicle site ELV

Commonly referred to as a scrapyard.

Enhanced Information Service for Emergency Calls EISEC

Instantly gives the control room operator location information details which may be used as a guide to the potential location of an emergency.


The perimeter of a building is referred to as an envelope

Environment Group EG

Body providing environmental and public health advice to responders in the event of a maritime pollution emergency

Environment Monitoring and Response Centre EMARC

The Met Office Environment Monitoring and Response Centre.


Normal state of body water content; absence of absolute or relative hydration or dehydration.

European Aviation Safety Agency EASA

An agency of the European Union with regulatory and executive powers in the field of civilian

European Community Urgent Radiological Information Exchange ECURIE

Process for early notification of overseas nuclear accidents.

Exothermic oxidation

A chemical process that results in the release of heat

Explosive canopy

In aircraft fitted with ejection seats, the transparent enclosure (or canopy) over the cockpit is blown upwards and rearwards by an explosive charge

Explosive Ordnance Disposal EOD

The detection, identification, on-site evaluation, rendering safe, recovery and final disposal of unexploded explosives ordnance. It may also include explosives ordnance which has become hazardous by damage or deterioration.

Fall Arrest

PPE which limits the extent of a fall.

Film-forming fluoroprotein FFFP

The type of foam that is better for cases where the burning fuel can form deeper pools

Fine fuels

Fast-drying dead fuels that are less than 6mm in diameter. Fine fuels ignite readily and are rapidly consumed by fire when dry. Examples of fine fuels include grass, leaves, ferns, mosses, pine needles and small twigs. When dried, fine fuels are referred to as 'flash fuels'

Fire intensity

The rate at which a fire releases energy in the form of heat, expressed as kilowatts per metre (kW/m) or kilojoules per meter per second (kJ). Fire intensity should not be confused with fire severity

Fire loading

The fire loading of a building or compartment is a way of establishing the potential severity of a hypothetical future fire. It is the heat output per unit floor area, often in kJ/m2, calculated from the calorific value of the materials present.


A measure to prevent the spread of fire.


FireMet is a weather system designed to provide fire and rescue service responders with the latest weather information to help them identify a safe approach when dealing with a major incident.


In vehicles or aircraft, a firewall is the part of the bodywork that separates the engine from the driver or pilot and passengers or crew

Fixed electrical ground power FEGP

A ground power supply for an aircraft parked at a stand, provided by means of a cable and plug.

Flame height

Measurement of flame height is calculated perpendicular from ground level to the tip of the flame. Flame height will be less than flame length if flames are tilted due to wind or slope