Non uniform sediment deposition dating
Adherence by NPS employees to policy is mandatory unless specifically waived or modified by the Secretary, the Assistant Secretary for Fish and Wildlife and Parks, or the Director. Constitution, which is the supreme law of the , gives Congress the authority to develop laws governing the management of the national park system.and other pertinent statutes, all NPS officials and employees must be knowledgeable about the laws, regulations, and policies that pertain to their work. The property clause specifically directs that The Congress will have the Power to dispose of and make all needful Rules and Regulations respecting the Territory or other Property belonging to the United States (article IV, section 3).NPS employees must follow these policies unless specifically waived or modified in writing by the Secretary, the Assistant Secretary, or the Director.
The additional legislative requirements of ANILCA, although not cited, must also be considered in the interpretation and application of these policies, as must all other applicable legislative requirements.
The Management Policies will be revised at appropriate intervals to consolidate Service-wide policy decisions, or to respond to new laws and technologies, new understandings of park resources and the factors that affect them, or changes in American society.
Interim updates or amendments may be accomplished through directors orders (the second level of the Directives System), which also serve as a vehicle to clarify or supplement the Management Policies to meet the needs of NPS managers.
The management of the national park system and NPS programs is guided by the Constitution, public laws, treaties, proclamations, executive orders, regulations, and directives of the Secretary of the Interior and the Assistant Secretary for Fish and Wildlife and Parks.
NPS policy must be consistent with these higher authorities and with appropriate delegations of authority.
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National Park Service The National Park Service preserves unimpaired the natural and cultural resources and values of the national park system for the enjoyment, education, and inspiration of this and future generations.