The National Forest Management Act (NFMA) of 1976 (P.L. 94-588) is a United States federal law that is the primary statute governing the administration of national forests and was an amendment to the Forest and Rangeland Renewable Resources Planning Act of 1974, which called for the management of renewable resources on national forest lands. The law was a response to lawsuits involving various practices in the national forest, including timber harvesting. , Zieske v Butz was the lawsuit brought by members of the Pt Baker Association on Prince of Wales Island against the US Forest Service's first environmental impact statement. The suit halted logging on the NW tip of the island which consisted of 400,000 acres and resulted in a call by the timber industry for Congressional action to undo the lawsuit.
The main objectives of NFMA are to require the U.S. Forest Service to develop plans for national forests, set standards for timber sales, and create policies to regulate timber harvesting. The purpose of these objectives is to protect national forests from permanent damages from excessive logging and clear cutting. Congress requires the Forest Service, in conjunction with other applicable agencies, to thoroughly assess, research, and plan for the nation’s renewable resource use, the current demand, anticipated demands, and environmental and economic impacts.
NFMA changed forest planning by obliging the United States Forest Service to use a systematic and interdisciplinary approach to resource management. It also provided for public involvement in preparing and revising forest plans. Also, NFMA established and expanded several Forest Service trust funds and special accounts. It expanded upon the land and resource management plans (L/RMPs) outlined in the Forest and Rangeland Renewable Resources Planning Act of 1974 (RPA), and started by requiring the Forest Service to do an inventory of all its lands, followed by a zoning process to see what uses land was best suited for - dubbed the "suitability determination." These plans required alternative land management options to be presented, each of which have potential resource outputs (timber, range, mining, recreation) as well as socio-economic effects on local communities. The Forest Service, in cooperation with the Federal Emergency Management Agency (FEMA), contributed considerable resources to the creation of FORPLAN (a linear programming model used to estimate the land management resource outputs) and IMPLAN to estimate the economic effects of these outputs on local communities.