Wildland fire engines use special equipment to spray water, foam, and chemicals. The engines are able to carry up to 800 gallons (3,028.3 l) of water. Many wildland fire engines are also equipped with four wheel drive and special equipment for off-road use.*http://www.fs.fed.us/fire/people/enginecrews/index.html

Fire engines are placed into category types that are used in the Incident Command System

Incident Command System

The Incident Command System is "a systematic tool used for the command, control, and coordination of emergency response" according to the United States Federal Highway Administration...

, and as a means of organizing multi-agency resources through the National Interagency Fire Center

National Interagency Fire Center

The National Interagency Fire Center in Boise, Idaho, is the physical facility that is home to the National Interagency Coordination Center , and the National Multi-Agency Coordination group ....

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Because structure engines are used on wildland fires, though primarily for structure protection, they too are included in NWCG engine typing.

Depending on where the engine is stationed it may carry as much as twice the national standard in fire hose. In areas where there is rugged that keeps engines from driving directly to the fire large hose lays are installed to transport water to the fire area. Occasionally these lays exceed a mile in length. Trunk lays and hose packs are used to quickly install these large lays.

In desert areas with moderate terrain little hose is used, instead mobile attack is the preferred method. It involves driving the apparatus with the pump engaged and spraying water on the fire as the vehicle is moving along the fires flank..