A zone of reduced fuel, generally linear, designed to reduce fire behavior as fires enter the treated area.

A system of linear or mosaic patch treatments of forest or shrub vegetation designed and treated to reduce fire spread, intensity, and create barriers to fire spread.

An existing barrier or change in fuel type (to one that is less flammable than that surrounding it) or a wide strip of land on which the native vegetation has been modified or cleared, that acts as a buffer to fire spread so that fires burning into them can be more readily controlled. Often selected or constructed to protect a high value area from fire.

A strategically located block or strip on which all existing flammable vegetation has been replaced by vegetation of lower fuel volume and/or flammability and subsequently maintained as an aid to fire control.

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