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Congressional Research Service

CRS Report RL30755
Forest Fire / Wildfire Protection

Historical Background
Concerns and Problems
Fuel Management
Fire Control
Wildfire Effects
Roles and Responsibilities
Current Issues

CRS Report RS21544 Wildfire Protection Funding

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Order Code RL30755

CRS Report for Congress
Received through the CRS Web

Forest Fire/Wildfire Protection

Updated February 14, 2005

Ross W. Gorte
Specialist in Natural Resources
Policy Resources, Science, and Industry Division

Congressional Research Service ‡The Library of Congress


Congress continues to face questions about forestry practices, funding levels, and the federal role in wildland fire protection. The 2000 and 2002 fire seasons were, by most standards, among the worst in the past half century. National attention began to focus on wildfires when a prescribed burn in May 2000 escaped control and burned 239 homes in Los Alamos, NM. President Clinton responded by requesting a doubling of wildfire management funds, and Congress enacted much of this proposal in the FY2001 Interior Appropriations Act (P.L. 106-291). President Bush responded to the severe 2002 fires by proposing a Healthy Forests Initiative to reduce fuel loads by expediting review processes.

Many factors contribute to the threat of wildfire damages. Two major factors are the decline in forest and rangeland health and the expansion of residential areas into wildlands — the urban-wildland interface. Over the past century, aggressive wildfire suppression, as well as past grazing and logging practices, have altered many ecosystems, especially those where light, surface fires were frequent. Many areas now have unnaturally high fuel loads (e.g., dead trees and dense thickets) and an historically unnatural mix of plant species (e.g., exotic invaders).

Fuel treatments have been proposed to reduce the wildfire threats. Prescribed burning — setting fires under specified conditions — can reduce the fine fuels that spread wildfires, but can escape and become catastrophic wildfires, especially if fuel ladders (small trees and dense undergrowth) and wind spread the fire into the forest canopy. Commercial timber harvesting is often proposed, and can reduce heavy fuels and fuel ladders, but exacerbates the threat unless and until the slash (tree tops and limbs) is properly disposed of. Other mechanical treatments (e.g., precommercial thinning, pruning) can reduce fuel ladders, but also temporarily increase fuels on the ground. Treatments can often be more effective if combined (e.g., prescribed burning after thinning). However, some fuel treatments are very expensive, and the benefit of treatments for reducing wildfire threats depend on many factors.

It should also be recognized that, as long as there is biomass, drought, and high winds, catastrophic wildfires will occur. Only about 1% of wildfires become conflagrations, but which fires will “blow up” into catastrophic wildfires is unpredictable. It seems likely that management practices and policies, including fuel treatments, affect the likelihood of such events. However, past experience with wildfires are of limited value for building predictive models, and research on fire behavior under various circumstances is difficult, at best. Thus, predictive tools for fire protection and control are often based on expert opinion and anecdotes, rather than on research evidence.

Individuals who choose to build homes in the urban-wildland interface face some risk of loss from wildfires, but can take steps to protect their homes. Federal, state, and local governments can and do assist by protecting their own lands, by providing financial and technical assistance, and by providing relief after the fire.

This is a background report and is unlikely to be updated.


Historical Background

Federal Fire Policy Evolution
Efficacy of Fire Protection
Wildland-Urban Interface (WUI)
Forest and Rangeland Health
Prescribed Burning
Salvage and Other Timber Harvesting
Other Fuel Management Tools
Fuel Management Funding
Wildfire Management Funding
Fire Control Policies and Practices
Landowner Responsibilities
State and Local Government Roles and Responsibilities
Federal Roles and Responsibilities
Federal Land Protection
Cooperative Assistance
Disaster Relief

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