From the enactment of the National Park Service Organic Act (the Organic Act or the Act) in 1916 until a 1998 decision by a federal district court in Utah, the National Park Service (NPS) had managed national parks without resolving theseeming contradiction between the Act's directive to conserve park resources "unimpaired" and its simultaneous directive to provide for visitors' "enjoyment" of those resources. Uncertainty, confusion, and disputes about the inevitably conflicting implications of these mandates were virtually guaranteed by the text of the Act, which requires the NPS to—

Our magnificent 40,000-mile National Trails System was established by Congress under the National Trails System Act (NTSA) of 1968 through the combined efforts of President Lyndon Johnson, Secretary of the Interior Stewart Udall, and Sens. Henry M. Jackson (D-Wash.) and Gaylord Nelson (D-Wis.). Private and nonfederal public lands make up the lion's share of federally recognized long-distance trail corridors.

"In the ranchers' view, history has created expectations in respect to the security of 'grazing privileges'; they have relied upon those expectations; and the statute requires the Secretary to 'safeguard' that reliance."

"Their adamance derives from a recollection of history that never existed and from asserted promises that were never made."

This Article considers the extent to which the United States has made progress in the management of chemicals and pesticides in light of the commitments it made in 1992 to promote sustainable development. While pesticides are types of chemicals, they are managed differently and this Article will employ the legal distinctions between the two. The term "chemicals" refers to substances that are manufactured, processed, or used in commerce, other than those marketed as pesticides, pharmaceuticals, or food additives.