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NWCG Glossary of Wildland Fire (PMS 205)

Title Steward Status Definition
ignition probability FBSC Fire Behavior Subcommittee Approved

Chance that a firebrand will cause an ignition when it lands on receptive fuels.

ignition sequence WFISC Wildland Fire Investigation Subcommittee Approved

The sequence or order of events that bring a competent ignition source, fuel first ignited and oxidant together allowing them to react with each other.

ignition source CEPC Communication, Education, and Prevention Committee Approved

Any process or event capable of causing a fire.

ignition time FBSC Fire Behavior Subcommittee Approved

Time between application of an ignition source and self-sustained combustion of a fuel.

ignition trigger FWS Fire Weather Subcommittee Approved

A causative agent for wildland fire. For example, human or lightning.

illegal substance manufacture CEPC Communication, Education, and Prevention Committee In Development

The production, preparation, propagation, compounding or processing of a controlled substance, either directly or indirectly or by extraction from substances of natural origin outside legally authorized facilities. The term "manufacture" includes the act of growing.

IMI Interactivity Levels IPSC Incident and Position Standards Committee Archived

Standards to which IMI products are developed conforming to interactivity level(s) which are appropriate for the instructional design, strategy, media, content, and course specifications.

IMI Level 1 Interactivity IPSC Incident and Position Standards Committee Archived

This is the lowest level of courseware development. It is normally a knowledge familiarity lesson, provided in a linear format (one idea after another).

IMI Level 2 Interactivity IPSC Incident and Position Standards Committee Archived

This involves the recall of more information than a level 1 and allows the student more control over the lesson scenario through screen icons and other peripherals, such as light pens or touch screens. Typically level 2 is used for non-complex operations and maintenance lessons. Simple emulations or simulations are presented to the user. As an example, the user is requested to rotate switches, turn dials, make adjustments, or identify and replace a faulted component as part of a procedure. This also may include simple to standard developed graphics, and/or clip art, and video and audio clips. 

IMI Level 3 Interactivity IPSC Incident and Position Standards Committee Archived

This involves the recall of more complex information (compared to levels 1 and 2) and allows the user an increased level of control over the lesson scenario through peripherals such as light pen, touch screen, track ball, or mouse. Video, graphics, or a combination of both is presented simulating the operation of a system, subsystem, or equipment to the user. The lesson scenario training material typically is complex and involves more frequent use of peripherals to affect a transfer of learning. Operation and maintenance procedures are normally practiced with level 3 scenarios and students may be required to alternate between multiple screens to keep pace with the lesson material. Multiple software branches (two to three levels) and rapid response are provided to support remediation. Emulations and simulations are an integral part of this presentation. This may also include complex developed graphics, and/or clip art, and video and audio clips.

impeller ETC Equipment Technology Committee Approved

Rotating part of a centrifugal pump which imparts energy to the liquid to be moved. For shearing purposes, the impeller is on a rotating shaft within the body of liquid.

impinge MFES Mobile Fire Equipment Subcommittee Approved

Projection of a substance into another; such as, projection of a stream of fluid or chemical product at high velocity.

Implementation Feasibility

the relative feasibility of a treatment or activity as very high, high, medium or low

implementation plan FUSC Fire Use Subcommittee Approved

The design and definition of all the activities, resources, limitations, and contingencies required for successful wildland fire management.

impregnate MFES Mobile Fire Equipment Subcommittee Approved

To infuse a substance with particles of another substance. In fiber hose, a process in which a dye or chemical is forced into the yarns to mildew treat or coat the jacket for various reasons.

improper disposal hot ashes/coals CEPC Communication, Education, and Prevention Committee In Development

The unsafe handling or disposal of materials like hot ashes or smoldering coals which ignite nearby combustable materials.

improper screening CEPC Communication, Education, and Prevention Committee In Development
impulse FWS Fire Weather Subcommittee Approved

A term used in weather primarily to describe a weak disturbance that does not necessarily have an associated storm center or surface low. The disturbance usually does not create severe weather and is frequently associated with a marine air push.

in-stand wind FWS Fire Weather Subcommittee Approved

Wind speed within a stand at about eye level.

inadequate clearance CEPC Communication, Education, and Prevention Committee In Development
inadequate control line/clearing CEPC Communication, Education, and Prevention Committee In Development
inadequate mop up CEPC Communication, Education, and Prevention Committee In Development
inadequate resources to control CEPC Communication, Education, and Prevention Committee In Development
incendiary WFISC Wildland Fire Investigation Subcommittee Approved

A burning compound or metal used to produce intense heat or flame, like a bomb.

incendiary device WFISC Wildland Fire Investigation Subcommittee Approved

Contrivance designed and used to start a fire.

incendiary device CEPC Communication, Education, and Prevention Committee In Development

Contrivance designed and used to start a fire. 

incendiary fire WFISC Wildland Fire Investigation Subcommittee Approved

A fire that is intentionally ignited in an area or under circumstances where and when there should not be a fire.

incident FMB Fire Management Board, NIMSIC National Incident Management System Integration Committee Approved

An occurrence, either human-caused or a natural phenomenon, that requires action or support by emergency services personnel to prevent or minimize loss of life or damage to property and/or natural resources.

Incident Action Plan (IAP) NIMSIC National Incident Management System Integration Committee Approved

An oral or written plan containing the objectives established by the Incident Commander or Unified Command and addressing tactics and support activities for the planned operational period, generally 12 to 24 hours.

incident agency IBC Incident Business Committee Approved

The organizational unit responsible for the incident activities.

incident assignment IBC Incident Business Committee Approved

An assignment to an incident that requires a length of commitment.

incident base NIMSIC National Incident Management System Integration Committee Approved

A location where personnel coordinate and administer logistics functions for an incident. There is typically only one base per incident. (An incident name or other designator is added to the term Base.) The ICP may be co-located with the Incident Base.

Incident Blanket Purchase Agreement (IBPA) IBC Incident Business Committee Approved

A pre-season agreement for equipment, supplies, or services to be used on fire and all-hazards incidents, issued on a Solicitation/Contract/Order for Commercial Items, SF-1449 form. I-BPAs are awarded on a competitive basis using commercial item procedures.

Incident Command NIMSIC National Incident Management System Integration Committee Approved

The ICS organizational element responsible for overall management of the incident and consisting of the Incident Commander or Unified Command and any additional Command Staff activated.

Incident Command Post (ICP) NIMSIC National Incident Management System Integration Committee Approved

The field location where the primary functions of incident command are performed. The ICP may be co-located with the Incident Base or other incident facilities.

Incident Command System (ICS) NIMSIC National Incident Management System Integration Committee Approved

A standardized approach to the command, control, and coordination of on-scene incident management, providing a common hierarchy within which personnel from multiple organizations can be effective. ICS is the combination of procedures, personnel, facilities, equipment, and communications operating within a common organizational structure, designed to aid in the management of on-scene resources during incidents. It is used for all kinds of incidents and is applicable to small, as well as large and complex, incidents, including planned events.

Incident Commander (IC) NIMSIC National Incident Management System Integration Committee Approved

The individual responsible for on-scene incident activities, including developing incident objectives and ordering and releasing resources. The Incident Commander has overall authority and responsibility for conducting incident operations through a Delegation of Authority.

Incident Commander (IC) name NCSC National Coordination System Committee Approved

The first (optional) and last name of the Incident Commander(s) currently assigned to the incident.

Incident Communications Center NIMSIC National Incident Management System Integration Committee Archived

The location of the communications unit and the message center.

incident complex NIMSIC National Incident Management System Integration Committee Approved

Two or more distinct incidents in the same general area that, by management action, are managed under a single incident commander or unified command in order to improve efficiency and simplify incident management processes.

incident complex (event) NCSC National Coordination System Committee Approved

Two or more distinct incidents in the same general area that, by management action, are managed under a single incident commander or unified command in order to improve efficiency and simplify incident management processes.

Incident Complexity Level NIMSIC National Incident Management System Integration Committee Approved

The incident level established by completing an incident complexity analysis considering the level of difficulty, severity, or overall resistance the incident or event presents to incident management or support personnel as they work to manage it; a categorization that helps leaders compare one type of incident or event to another.   

incident dispatch center identifier NCSC National Coordination System Committee Approved

A unique identifier for the dispatch center with responsibility at the point of origin.

incident host UIB Unit Identifier Board Approved

An organizational unit with jurisdictional authority responsibility for interagency incident management. 

Incident Management NIMSIC National Incident Management System Integration Committee Approved

The broad spectrum of activities and organizations providing operations, coordination, and support applied at all levels of government, using both governmental and nongovernmental resources to plan for, respond to, and recover from an incident, regardless of cause, size, or complexity.

incident management organization NCSC National Coordination System Committee Approved

The incident management organization for the incident.

Incident Management Team (IMT) NIMSIC National Incident Management System Integration Committee Approved

A group of ICS-qualified personnel consisting of an Incident Commander, Command and General Staff, and personnel assigned to other key ICS positions.

Incident Management Team name Approved

Name of the Incident Management Team in charge of the fire.

Incident Medical Specialist Program RMC Risk Management Committee Approved

An incident-based program to care for emergent and minor medical as well as common occupational health care problems of incident personnel. This program may be deployed to Type I and Type II incidents. Currently, this program is only available in three regions: Northwest (R6), Northern Rockies (R1) and Alaska (R10). In Alaska, the program is known as the Alaska Fire Medic Program.

incident name FRSC Fire Reporting Subcommittee Approved

The name assigned to an incident.

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