U.S. Code » Title 54 » Subtitle Subtitle I— National Park System › Division DIVISION A— ESTABLISHMENT AND GENERAL ADMINISTRATION › Chapter CHAPTER 1001— GENERAL PROVISIONS

54 U.S.C. § 100102

Definitions

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In this title:(1)Director.—The term “Director” means the Director of the National Park Service.(2)National park system.—The term “National Park System” means the areas of land and water described in section 100501 of this title.(3)Secretary.—The term “Secretary” means the Secretary of the Interior.(4)Service.—The term “Service” means the National Park Service.(5)System.—The term “System” means the National Park System.(6)System unit.—The term “System unit” means one of the areas described in section 100501 of this title.(Pub. L. 113–287, § 3, Dec. 19, 2014, 128 Stat. 3096.)

Historical and Revision Notes

Revised

Section

Source (U.S. Code)

Source (Statutes at Large)

100102

no source.

The term “System unit” is added because various laws relating to the National Park Service apply to any area of land or water administered by the Secretary through the Service regardless of the terms used in those laws. See section 100501 of the revised title.

Statutory Notes and Related SubsidiariesDefinitions

Pub. L. 114–289, § 2, Dec. 16, 2016, 130 Stat. 1482, provided that: “In this Act [see Short Title of 2016 Amendment note set out under section 100101 of this title]:“(1)Challenge fund.—The term ‘Challenge Fund’ means the National Park Centennial Challenge Fund established in title I [enacting chapter 1035 of this title and amending section 6804 of Title 16, Conservation].“(2)Director.—The term ‘Director’ means the Director of the National Park Service.“(3)Endowment.—The term ‘Endowment’ means the Second Century Endowment for the National Park Service established by title II [see Short Title of 2016 Amendment note set out under section 100101 of this title].“(4)Secretary.—The term ‘Secretary’ means the Secretary of the Interior.“(5)Signature project or program.—The term ‘signature project or program’ means any project or program identified by the Secretary as one that will help prepare the national parks for another century of conservation, preservation, and visitor enjoyment.”

Notes of Decisions
Cited in 4 cases (2 in the last 5 years), 2019–2026 · leading case: United States Forest Serv. v. Cowpasture River Pres. Assn., 140 S. Ct. 1837 (2020).
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United States Forest Serv. v. Cowpasture River Pres. Assn., 140 S. Ct. 1837 (2020). · cites it 8× “54 U.S.C. §§ 100102 (6), 100501. Federal law does not distinguish "land" from the Trail any more than it distinguishes "land" from the many monuments, historic buildings, parkways, and recreational areas that are also units of the Park System.”
Sturgeon v. Frost, 139 S. Ct. 1066 (2019). “means any unit in Alaska of the National Park System"); see 54 U.S.C. § 100102 (6) (similar). In sketching those units' boundary lines, Congress made an uncommon choice-to follow "topographic or natural features," rather than enclose only federally owned lands.”
Gescheidt v. Haaland (N.D. Cal. 2023). “§ 100501 ; see also 54 U.S.C. § 100102 (1), (3). Section 100502 itself also lists broad 14 categories of information that general management plans “shall include”: 15 1) measures for the preservation of the area’s resources; 16 2) indications of types and general intensities of…”
United States v. Carey (D.D.C. 2026). “§ 1865 (a); 54 U.S.C. §§ 100102 (1), 100102(6), 100501, 100751(a).”
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