Aerial chemical applications are often used as a method of suppression rather than prevention; however, vehicular and manual applications are used in preparation for prescribed burning. Like mechanical thinning, chemical applications are used in areas that may be too close to developed property or dangerous to burn directly. Additionally, such methods are used to create fire breaks and control the fire line.

Used in situations where prescribed burning may be too dangerous or difficult, these methods aim to:

1. Reduce the likelihood of devastating fires

2. Promote ecosystem resilience

3. Protect life and property

Federally regulated lumber harvesting acts in a manner that promotes the goals of mechanical thinning.

Once areas have been secured through mechanical and chemical controls, prescribed fire is used to break down ground vegetation and debris. The use of prescribed fire reduces the probability of extreme fire events, minimizes the spread of pests and disease, remove invasive species, creates foraging opportunities for game, and promotes healthy growth by replenishing the soil with essential nutrients.