United States · Law · HR
H.R. 921 (100th)
A bill to require the Secretary of the Interior to conduct a study to determine the appropriate minimum altitude for aircraft flying over national park system units.
Introduced
3 February 1987
Last action
—
Status
Became Public Law No: 100-91.
Sponsors
—
Subjects
Discovery layer
Source updated
24 March 2026
Summary
Directs the Secretary of the Interior, acting through the Director of the National Park Service, to conduct a study of the proper minimum altitude which should be maintained by aircraft flying over areas within units of the national park system. Directs the Secretary of Transportation, acting through the Federal Aviation Administration, to provide technical assistance to the Secretary of the Interior for such study. Requires the Secretary of the Interior to report to the Congress within two years after enactment of this Act regarding the study results. Requires the Administrator of the Federal Aviation Administration to: (1) review, on the basis of aviation safety, current regulations pertaining to aircraft flights over units of the national park system addressed in the study conducted by the Secretary of the Interior; and (2) report to the Congress the results of such review together with recommendations for changes. Authorizes appropriations for such studies. Prohibits any fixed wing aircraft or helicopter from flying below specified minimum altitudes during such study and review periods over the surfaces of Yosemite National Park and Haleakala National Park. Requires the Secretary of the Interior to submit a final plan for air traffic management and noise abatement over Grand Canyon National Park to the Administrator. Prescribes guidelines under which the Administrator is required to implement such plan. Requires the Secretary of the Interior to report to the Congress whether such final plan has succeeded in substantially restoring the natural quiet in the Grand Canyon National Park. Exempts certain helicopter flights of river runners from prohibition under the noise abatement plan.
This text is taken from the official record. PoliticalRepo does not editorialize.
Timeline
No timeline events have been ingested for this record yet.
Votes
No vote records are attached yet.
Versions
No version snapshots stored. Document URLs remain at the source.
Documents
6 official files
Public Law (PDF)
Public Law (PDF)
Public Law · EN · 19 August 1987
Passed Senate amended
summary · EN · 28 July 1987
Reported to Senate with amendment(s)
summary · EN · 1 July 1987
Passed House amended
summary · EN · 4 May 1987
Reported to House amended, Part I
summary · EN · 28 April 1987
Introduced in House
summary · EN · 3 February 1987
Sponsors
No sponsors or actors listed by the source.
Related records
No cross-record relationships stored yet.
Sources
PoliticalRepo is an index and interpretation layer, not the authoritative legal source.
- Official source: https://www.congress.gov/bill/100th-congress/house-bill/921
- Open data entity: https://api.congress.gov/v3/bill/100/hr/921