Layer of clouds whose ratio of dense sky cover to total sky cover is 1/2 or less.

A low expansion foam type with no expansion, therefore lacking bubble structure, which is used for mopup and flame knock down.

A natural or manmade change in fuel characteristics which affects fire behavior so that fires burning into them can be more readily controlled.

Landscaped and regularly maintained fuel break, usually put to some additional use (e.g., golf course, park, playground).

A person working within an agency organization who processes resources to and from incidents.

This subsystem of NIIMS provides recommended qualification and certification for those personnel responding to an incident regionally or nationally, allowing for the development of local minimum standards to meet local needs. Standards typically include training, experience, and physical fitness.

An NWCG developed program that consisted of five subsystems which collectively provide a total systems approach to all-risk incident management. The subsystems are: The Incident Command System, Training, Qualifications and Certification, Supporting Technologies, and Publications Management.

Any technology which may be used to support NIIMS. Examples of these technologies include GIS mapping, infrared technology, NFDRS, communications, dispatch coordination, and national cache system.

Any combustible material, especially petroleum-based products and wildland fuels.

Layer through which temperature remains constant with elevation.