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
18 August 1987 · President
Status
Became Public Law No: 100-91.
Sponsors
Rep. Coelho, Anthony Lee [D-CA-15], Rep. Udall, Morris K. [D-AZ-2], Rep. Vento, Bruce F. [D-MN-4], Rep. Mineta, Norman Y. [D-CA-15], Rep. Lehman, Richard H. [D-CA-19], Rep. Solarz, Stephen J. [D-NY-13], Rep. Gejdenson, Sam [D-CT-2], Sen. Akaka, Daniel K. [D-HI], Rep. Beilenson, Anthony C. [D-CA-24], Rep. Smith, Lawrence [D-FL-16], Rep. Eckart, Dennis E. [D-OH-11], Rep. Jones, Walter B. [D-NC-1], Rep. Levin, Sander M. [D-MI-12], Rep. Feighan, Edward F. [D-OH-19], Rep. Crockett, George W., Jr. [D-MI-13], Rep. Lantos, Tom [D-CA-12], Sen. Boxer, Barbara [D-CA], Rep. Bates, Jim [D-CA-44], Rep. Wolpe, Howard E. [D-MI-3], Rep. Mrazek, Robert J. [D-NY-3], Rep. Martinez, Matthew G. [D-CA-31], Rep. Williams, Pat [D-MT-At Large], Rep. Green, S. William [R-NY-15], Rep. Thomas, Lindsay [D-GA-1], Rep. Owens, Wayne [D-UT-2], Rep. Miller, George [D-CA-11], Rep. Towns, Edolphus [D-NY-10], Del. Sunia, Foto I. F. [D-AS-At Large], Del. Blaz, Ben G. [R-GU-At Large], Rep. Dellums, Ronald V. [D-CA-9], Rep. Sawyer, Tom [D-OH-14], Rep. Chandler, Rod D. [R-WA-8], Rep. Rahall, Nick J., II [D-WV-3], Rep. Kolter, Joseph P. [D-PA-4], Sen. Campbell, Ben Nighthorse [R-CO], Rep. Saiki, Patricia [R-HI-1], Rep. Morrison, Bruce A. [D-CT-3], Sen. Durbin, Richard J. [D-IL], Rep. Kildee, Dale E. [D-MI-5], Sen. Johnson, Tim [D-SD], Rep. Dixon, Julian C. [D-CA-32], Rep. Foglietta, Thomas M. [D-PA-1], Del. de Lugo, Ron [D-VI-At Large], Rescom. Fuster, Jamie B. [D-PR-At Large], Rep. Coleman, Ronald D. [D-TX-16], Rep. Hertel, Dennis M. [D-MI-14], Rep. Scheuer, James H. [D-NY-8], Rep. Dwyer, Bernard J. [D-NJ-6]
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
3 February 1987
Introduced
Referred to House Committee on Interior and Insular Affairs.
Source: IntroReferral
3 February 1987
Introduced
Introduced in House
Source: IntroReferral
3 February 1987
Introduced
Introduced in House
Source: IntroReferral
18 March 1987
Referred
Referred to Subcommittee on National Parks and Public Lands.
Source: Committee
24 March 1987
Committee
Subcommittee Hearings Held.
Source: Committee
31 March 1987
Committee
Forwarded by Subcommittee to Full Committee (Amended).
Source: Committee
31 March 1987
Committee
Subcommittee Consideration and Mark-up Session Held.
Source: Committee
2 April 1987
Committee
Unfavorable Executive Comment Received From Interior.
Source: Committee
8 April 1987
Reported
Ordered to be Reported (Amended).
Source: Committee
8 April 1987
Committee
Committee Consideration and Mark-up Session Held.
Source: Committee
28 April 1987
Introduced
Referred to House Committee on Public Works and Transportation Sequentially, for a Period Ending not Later than Apr 29, 87.
Source: IntroReferral
28 April 1987
Reported
Reported to House (Amended) by House Committee on Interior and Insular Affairs. Report No: 100-69 (Part I).
Source: Committee
28 April 1987
Reported
Reported to House (Amended) by House Committee on Interior and Insular Affairs. Report No: 100-69 (Part I).
Source: Committee
29 April 1987
Calendars
Placed on Union Calendar No: 54.
Source: Calendars
29 April 1987
Discharge
House Committee on Public Works and Transportation Discharged by Unanimous Consent.
Source: Discharge
29 April 1987
Committee
House Committee on Public Works and Transportation Discharged by Unanimous Consent.
Source: Committee
4 May 1987
Passed
Passed House (Amended) by Voice Vote.
Source: Floor
4 May 1987
Passed
Passed/agreed to in House: Passed House (Amended) by Voice Vote.
Source: Floor
4 May 1987
Floor
Called up by House Under Suspension of Rules.
Source: Floor
5 May 1987
Referred
Referred to Subcommittee on Public Lands, National Parks.
Source: Committee
5 May 1987
Introduced
Received in the Senate and read twice and referred to the Committee on Energy and Natural Resources.
Source: IntroReferral
25 June 1987
Reported
Committee on Energy and Natural Resources. Ordered to be reported in lieu of S. 451 with an amendment in the nature of a substitute favorably.
Source: Committee
1 July 1987
Introduced
Referred to the Committee on Commerce by unanimous consent not to extend beyond the close of business July 24, 1987.
Source: IntroReferral
1 July 1987
Calendars
Placed on Senate Legislative Calendar under General Orders. Calendar No. 223.
Source: Calendars
1 July 1987
Reported
Committee on Energy and Natural Resources. Reported to Senate by Senator Johnston with an amendment in the nature of a substitute. With written report No. 100-97.
Source: Committee
1 July 1987
Reported
Committee on Energy and Natural Resources. Reported to Senate by Senator Johnston with an amendment in the nature of a substitute. With written report No. 100-97.
Source: Committee
14 July 1987
Reported
Committee on Commerce. Ordered to be reported without amendment favorably.
Source: Committee
24 July 1987
Calendars
Placed on Senate Legislative Calendar under General Orders. Calendar No. 259.
Source: Calendars
24 July 1987
Reported
Committee on Commerce. Reported to Senate by Senator Hollings without amendment. With written report No. 100-125.
Source: Committee
24 July 1987
Reported
Committee on Commerce. Reported to Senate by Senator Hollings without amendment. With written report No. 100-125.
Source: Committee
28 July 1987
Passed
Passed Senate with an amendment by Voice Vote.
Source: Floor
28 July 1987
Passed
Passed/agreed to in Senate: Passed Senate with an amendment by Voice Vote.
Source: Floor
30 July 1987
Floor
Message on Senate action sent to the House.
Source: Floor
3 August 1987
Passed
House Agreed to Senate Amendments by Unanimous Consent.
Source: ResolvingDifferences
3 August 1987
Passed
Resolving differences -- House actions: House Agreed to Senate Amendments by Unanimous Consent.
Source: NotUsed
6 August 1987
Floor
Measure Signed in Senate.
Source: Floor
7 August 1987
Floor
Presented to President.
Source: Floor
7 August 1987
President
Presented to President.
Source: President
18 August 1987
Became law
Became Public Law No: 100-91.
Source: President
18 August 1987
Became law
Signed by President.
Source: BecameLaw
18 August 1987
President
Signed by President.
Source: President
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)
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Leesvertaling
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Public Law (PDF)
Public Law · EN · 19 August 1987
Passed Senate amended
summary · EN · 28 July 1987
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Reported to Senate with amendment(s)
summary · EN · 1 July 1987
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Passed House amended
summary · EN · 4 May 1987
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Reported to House amended, Part I
summary · EN · 28 April 1987
Leesvertaling
Vertaal dit document naar jouw taal. PoliticalRepo bewaart geen aparte kopie per EU-taal.
Documentvertaling op verzoek met downloadbare PDF (logo + link naar de officiële bron). Het bronbestand blijft leidend.
Introduced in House
summary · EN · 3 February 1987
Leesvertaling
Vertaal dit document naar jouw taal. PoliticalRepo bewaart geen aparte kopie per EU-taal.
Documentvertaling op verzoek met downloadbare PDF (logo + link naar de officiële bron). Het bronbestand blijft leidend.
Sponsors
- Rep. Coelho, Anthony Lee [D-CA-15] · D · Sponsor
- Rep. Udall, Morris K. [D-AZ-2] · D · Sponsor
- Rep. Vento, Bruce F. [D-MN-4] · D · Sponsor
- Rep. Mineta, Norman Y. [D-CA-15] · D · Sponsor
- Rep. Lehman, Richard H. [D-CA-19] · D · Sponsor
- Rep. Solarz, Stephen J. [D-NY-13] · D · Sponsor
- Rep. Gejdenson, Sam [D-CT-2] · D · Sponsor
- Sen. Akaka, Daniel K. [D-HI] · D · Sponsor
- Rep. Beilenson, Anthony C. [D-CA-24] · D · Sponsor
- Rep. Smith, Lawrence [D-FL-16] · D · Sponsor
- Rep. Eckart, Dennis E. [D-OH-11] · D · Sponsor
- Rep. Jones, Walter B. [D-NC-1] · D · Sponsor
- Rep. Levin, Sander M. [D-MI-12] · D · Sponsor
- Rep. Feighan, Edward F. [D-OH-19] · D · Sponsor
- Rep. Crockett, George W., Jr. [D-MI-13] · D · Sponsor
- Rep. Lantos, Tom [D-CA-12] · D · Sponsor
- Sen. Boxer, Barbara [D-CA] · D · Sponsor
- Rep. Bates, Jim [D-CA-44] · D · Sponsor
- Rep. Wolpe, Howard E. [D-MI-3] · D · Sponsor
- Rep. Mrazek, Robert J. [D-NY-3] · D · Sponsor
- Rep. Martinez, Matthew G. [D-CA-31] · D · Sponsor
- Rep. Williams, Pat [D-MT-At Large] · D · Sponsor
- Rep. Green, S. William [R-NY-15] · R · Sponsor
- Rep. Thomas, Lindsay [D-GA-1] · D · Sponsor
- Rep. Owens, Wayne [D-UT-2] · D · Sponsor
- Rep. Miller, George [D-CA-11] · D · Sponsor
- Rep. Towns, Edolphus [D-NY-10] · D · Sponsor
- Del. Sunia, Foto I. F. [D-AS-At Large] · D · Sponsor
- Del. Blaz, Ben G. [R-GU-At Large] · R · Sponsor
- Rep. Dellums, Ronald V. [D-CA-9] · D · Sponsor
- Rep. Sawyer, Tom [D-OH-14] · D · Sponsor
- Rep. Chandler, Rod D. [R-WA-8] · R · Sponsor
- Rep. Rahall, Nick J., II [D-WV-3] · D · Sponsor
- Rep. Kolter, Joseph P. [D-PA-4] · D · Sponsor
- Sen. Campbell, Ben Nighthorse [R-CO] · D · Sponsor
- Rep. Saiki, Patricia [R-HI-1] · R · Sponsor
- Rep. Morrison, Bruce A. [D-CT-3] · D · Sponsor
- Sen. Durbin, Richard J. [D-IL] · D · Sponsor
- Rep. Kildee, Dale E. [D-MI-5] · D · Sponsor
- Sen. Johnson, Tim [D-SD] · D · Cosponsor
- Rep. Dixon, Julian C. [D-CA-32] · D · Cosponsor
- Rep. Foglietta, Thomas M. [D-PA-1] · D · Cosponsor
- Del. de Lugo, Ron [D-VI-At Large] · D · Cosponsor
- Rescom. Fuster, Jamie B. [D-PR-At Large] · D · Cosponsor
- Rep. Coleman, Ronald D. [D-TX-16] · D · Cosponsor
- Rep. Hertel, Dennis M. [D-MI-14] · D · Cosponsor
- Rep. Scheuer, James H. [D-NY-8] · D · Cosponsor
- Rep. Dwyer, Bernard J. [D-NJ-6] · D · Cosponsor
Showing 48 of 68 sponsors and actors.
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Direct relationships
- Legal framework · 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. · H.R. 921 (100th) · US
- Identifier matchPROJECTS_FROM
Same us record 100-hr-921 projected from PoliticalRepo US row.
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
- us · 100-hr-921 · source updated 24 March 2026