The state of a resource as it is utilized by an incident. 

Violent convection caused by a large continuous area of intense fire. Often characterized by destructively violent surface indrafts, near and beyond the perimeter, and sometimes by tornado-like whirls.

Any sudden acceleration in rate of spread or intensification of the fire. Unlike blowup, a flare-up is of relatively short duration and does not radically change existing control plans.

Sudden increase in fireline intensity or rate of spread of a fire sufficient to preclude direct control or to upset existing suppression plans. Often accompanied by violent convection and may have other characteristics of a fire storm.

The burning of the foliage of a single tree or a small group of trees, from the bottom up.

An appointment/agreement that meets the following conditions:

The person does not receive compensation (other than reasonable reimbursement or allowance for expenses actually incurred)

An appointment/agreement that meets the following conditions:

Employing office is a government or contractor entity
There is no set work schedule; the person is in a “call-when-needed” status.
Employee receives compensation for work

An appointment/agreement that meets the following conditions:

Employing office is a government or contractor entity
There is no set work schedule; the person is in a “call-when-needed” status.
Employee receives compensation for work

An appointment/agreement that meets the following conditions:

Term of appointment is based on duration of the emergency situation for which the employee is hired.
Employee receives compensation for work based on Administratively Determined (AD) Pay Plan for Emergency Workers

An appointment/agreement that meets the following conditions:

Employing office is a government entity
Term of appointment is not to exceed one year
Employee receives compensation for work