United States · Bill · HR
H.R. 1489 (115th)
MAST Act
Introduced
9 March 2017
Last action
—
Status
Referred to the Subcommittee on Water, Power and Oceans.
Sponsors
—
Subjects
Discovery layer
Source updated
11 August 2025
Summary
Marine Access and State Transparency or the MAST Act This bill amends the Antiquities Act of 1906 to require the President, before a national monument can be designated on public land, to obtain congressional approval and certify compliance with the National Environmental Policy Act of 1969. The bill bars the President from declaring any area of the exclusive economic zone to be a national monument unless: such a declaration is specifically authorized by an Act of Congress; the President has submitted a proposal to make the declaration to the governor of each state or territory located within 200 nautical miles of that area; each governor submits to the President a notice that the legislature of that state or territory has approved the proposal; and the declaration is substantially the same as the proposal. The bill prohibits the Department of the Interior or the Department of Commerce, with respect to any area of the exclusive economic zone that is designated as a national monument, from implementing any restrictions on the public use of such a national monument until the expiration of an appropriate review period providing for public input and congressional approval.
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Documents
3 official files
Introduced in House (text)
Introduced in House (text)
Introduced in House · EN · 9 March 2017
Introduced in House (PDF)
Introduced in House · EN · 9 March 2017
Introduced in House
summary · EN · 9 March 2017
Sponsors
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Sources
PoliticalRepo is an index and interpretation layer, not the authoritative legal source.
- Official source: https://www.congress.gov/bill/115th-congress/house-bill/1489
- Open data entity: https://api.congress.gov/v3/bill/115/hr/1489