Responding to a call with lights and siren.
is out of station Either proceeding
to a call with no lights or siren or driving
On Scene or Arrival
on location of the alarm.
Working Fire A
structure fire that is big enough to require
multiple units/stations to be called and for the
incident command system to be used.
Fully involved A working fire
that has spread to more then half the building.
MVC Motor Vehicle Collision.
VSA Vital Signs Absent (not breathing
and have no pulse)
Response When more then
one agency responds to an incident.
Usually referred to in medical calls where Fire,
EMS and Police are dispatched.
EMS Emergency Medical Service
RIT Rapid Intervention Team.
This is a team of firefighters whose sole
specialty is to enter a structure and rescue any
firefighters who become injured or trapped and
have called for assistance.
Hazmat A Hazmat unit is
specially trained to handle hazardous materials.
Hot Zone The hot zone is the area
where the incident is happening. (Ex. At a
working fire the hot zone is inside the
building. At a hazmat call, the hot zone
is the area containing the hazardous material)
Mayday When a firefighter
becomes trapped, injured, or in need of
assistance at a scene they will call a mayday to
request assistance and the RIT team will be sent
to rescue them. (Ex. Over the radio you will
hear “Mayday! Mayday! Mayday!”)
Heavy Hydraulics Cutting and
spreading tools that are powered by high
pressure hydraulic fluid. These tools are
most often used to free people who are trapped
in vehicles after a motor vehicle acident.
The “Jaws of life” is a brand name of a heavy
to an area of a building/property, each side is
given a letter. A, B, C, D. A is always the side
that faces the street, and B to D are clockwise
a fire is very physically demanding work so to
make sure firefighters don’t over exhausted or
dehydrated they are sent to rehab after being in
the hot zone so they can rest, cool down, and