NWCG Glossary of Wildland Fire (PMS 205)

Classification of indicators into a variety of categories based on how they are formed and the types of material they are found on.

A method of suppression in which the control line is located some considerable distance away from the fire's active edge. Generally done in the case of a fast-spreading or high-intensity fire and to utilize natural or constructed firebreaks or fuel breaks and favorable breaks in the topography. The intervening fuel is usually backfired; but occasionally the main fire is allowed to burn to the line, depending on conditions. 

A control mechanism that allows a regulated quantity of foam concentrate to be introduced into the main hose line.

An application of fire danger rating to support regulation of contractors involved in land management activities for fire prevention purposes in the Pacific Northwest.

A heat detection system used for fire detection, mapping, and hotspot identification.

A capability through the use of a special mobile ground station to receive air-to-ground IR imagery at an incident.

An event dealing with public infrastructure such as water, electrice, transportation, or communication networks.

Process of extinguishing fire by the use of an agent that interrupts the chemical reactions in the combustion process.

Any agent which retards a chemical reaction.

The date and time that initial action was taken by the first resources to arrive at a fire.

An aggressive action to put the fire out by the first resources to arrive, consistent with firefighter and public safety and values to be protected.

Specially trained and equipped fire crew for initial attack on a fire.

Fire that is generally contained by the attack units first dispatched, without a significant augmentation of reinforcements, within two hours after initial attack, and full control is expected within the first burning period.

A polygon depicting an area in which the FAA/DOI/USDA annually assign initial attack frequencies for incident needs.

The incident commander at the time the first attack forces commence suppression work on a fire.

The fire strategy initially used on a wildland fire; the general plan or direction utilized until it succeeds or changes. 

The fire strategy initially used on a wildland fire. The initial fire strategy is the general plan or direction utilized until it succeeds or changes. The NWCG glossary defines strategy as: The general plan or direction selected to accomplish incident objectives.

Indicates whether the objectives for the initial fire strategy were attained. NWCG glossary defines strategy as: The general plan or direction selected to accomplish incident objectives

The area where investigator(s) begin their on-scene search for the general origin area.

The initial decisions and actions taken in reaction to a reported incident.

The total number of fire resources by kind, category, and type (if listed and applicable) used during the initial response. Initial response resouces will only be counted during intial attack. Extended Attack Incidents are those which persist beyond the first full operational period where local resources are not sufficient and the complexity elevates beyond initial attack commander capability.

Any fire crew composed of prison inmates or wards.

The internal diameter of a tube, conductor, or coupling, as distinguished from its OD (Outside Diameter). Fire hose sizes are classified by a nominal internal diameter.

Training that is delivered by an instructor in a classroom or field setting. Classroom instructor-led training may be delivered in person in a physical classroom or virtually using a video- or audio-conferencing platform.

Weather conditions below the minimum for flight under Visual Flight Rules and therefore requiring the observance of instruments inside the aircraft for controlling flight; generally considered to be less than 1000' AGL and 3 miles distant.

System for airplane landing in which the pilot is guided by radio beams.

Naturally or artificially ventilated structure, constructed to specifications and used to shield weather measuring instruments from direct sunshine and precipitation.

Primary key for linking to the Wildland Fire Locations Point dataset.

A group of predominantly interactive, electronically delivered training. IMI products include instructional software and software management tools used in support of instructional programs. IMI products are teaching and management tools and may be used in combination or individually. Used individually, not all IMI products can be considered interactive, multimedia, or instructional. However, IMI products, when used in combination with one another, are interactive, multimedia, and instructional. IMI technology is one of the primary technologies to be used in distance learning. 

A product, tool, or IT application that has been designated as the trusted source for wildland fire data. This source may also create and update transactional data for use in other applications. There may be more than one IADS and it can change depending on business process complexity and life cycle. An IADS may be a compilation or subset of data from other authoritative sources. The DLM process ensures sources, limitations, currency, and attributes for the IADS are documented.

An individual who may be assigned to or requested by an incident to serve as the sending unit's representative to oversee the care and treatment of crews, overhead, and equipment assigned to an incident.

Agencies and bureaus may have their own SOR for their data. An ISORs are identified by an interagency business area as the official application source of interagency data. An ISOR is the source that resolves duplicate records that may arise from various IADSs and ensures the data meets defined quality standards before it is included in official historical data sets. An ISOR can be an external source of data used by wildland fire.

A course developed by an interagency, all-hazard subject matter expert group containing the same learning objectives and content as an NWCG developed course. Interchangeable course do not require equivalency determination by a using agency and may have multiple course codes and/or numbers. These courses will be incorporated into IQCS/IQS and credit will be given for the NWCG course. 

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

Smoke which becomes visible only at intervals.

Load carried inside the fuselage structure of an aircraft.

Allowable aircraft cabin load, in pounds, with full fuel and pilot in calm air at standard atmosphere.

An event dealing with effective and timely support to the wildland fire community by mobilizing resources internationally. This category includes importing and exporting resources.

A list of invasive species that are cause for concern related to the use of water sources.

Assigned resources which have checked in at the incident.

Atmospheric inversion. The departure from the usual increase or decrease with altitude of the value of an atmospheric property. In fire management usage, nearly always refers to an increase in temperature with increasing height. Also, the layer through which this departure occurs (also called inversion layer.) The lowest altitude at which the departure is found is called the base of the inversion.

The NTSB designated IIC organizes, conducts, controls, and manages the field phase of the investigation. The IIC has the responsibility and authority to supervise and coordinate all resources and activities of all personnel, both Board and non-Board, involved in the on-site investigation. The IIC continues to have considerable organizational and management responsibilities throughout later phases of the investigation, up to and including Board consideration and adoption of a report or brief of probable cause(s). Note: the NTSB determines probable cause(s); DOI/USFS determine contributing factors.
 
(See 49 CFR (NTSB) 830/831)

Inflammation of the iris of the eye.

A tapered thread standard that is used for connecting various sizes of rigid pipe. This standard may be referred to as tapered iron pipe thread (TIPT), National pipe thread (NPT), iron pipe thread (IPT), or iron pipe standard thread (IPS). With tapered thread, the threads and pipe sealant perform the seal at the connection. This is opposed to straight thread connectors which use a gasket to form the seal. 

Indicates that a water source is available for fire purposes.

Indicates whether a resource's location (geometry object/shape) is being updated by a real-time GPS tracking such as AVL (Automated Vehicle Locator).

Indicates whether a resource is a National Resource for use in Initial Response.

Indicates that the capability is the primary capability for the equipment or aircraft.