Mining Regulatory Clarity Act

openUnited States· United States Congress· EN

Introduced

12 February 2025

Last action

11 February 2026 · Reported

Status

Placed on Senate Legislative Calendar under General Orders. Calendar No. 334.

Summary

Mining Regulatory Clarity Act This bill allows mining operators to use federal lands for activities ancillary to mining, such as waste disposal, regardless of whether those lands contain mineral deposits valuable enough to be mined (mineral validity). It also establishes the Abandoned Hardrock Mine Fund. The bill addresses a 2022 decision in the U.S. Court of Appeals for the Ninth Circuit related to the Rosemont Copper Mine in Arizona (commonly known as the Rosemont decision , described further in CRS Report R48166 ). The court held that mining claims are only allowed where mineral validity has been established and that mill site claims are more appropriate means for establishing a mining waste disposal site under the Mining Act. The bill allows a mining operator to (1) locate and include within its plan of operations as many mill site claims (e.g., areas for waste rock disposal) as are reasonably necessary for its operations, and (2) use or occupy public land in accordance with an approved plan of operations. Additionally, the bill requires any revenue generated from fees for such mill site claims to be deposited into the Abandoned Hardrock Mine Fund. The Department of the Interior must use the fund for certain abandoned hardrock mine reclamation activities.

This text is taken from the official record. PoliticalRepo does not editorialize.

Timeline

12 February 2025
Introduced
Read twice and referred to the Committee on Energy and Natural Resources.
Source: IntroReferral
12 February 2025
Introduced
Introduced in Senate
Source: IntroReferral
12 March 2025
Committee
Committee on Energy and Natural Resources. Hearings held. Hearings printed: S.Hrg. 119-46.
Source: Committee
9 April 2025
Reported
Committee on Energy and Natural Resources. Ordered to be reported without amendment favorably.
Source: Committee
11 February 2026
Calendars
Placed on Senate Legislative Calendar under General Orders. Calendar No. 334.
Source: Calendars
11 February 2026
Reported
Committee on Energy and Natural Resources. Reported by Senator Lee without amendment. With written report No. 119-105.
Source: Committee
11 February 2026
Reported
Committee on Energy and Natural Resources. Reported by Senator Lee without amendment. With written report No. 119-105.
Source: Committee

Votes

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Versions

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Documents

3 official files

Reported to Senate

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Reported to Senate
Reported to Senate · EN · 11 February 2026
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Introduced in Senate
Introduced in Senate · EN · 12 February 2025
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Introduced in Senate
summary · EN · 12 February 2025
Open at official source
Leesvertaling
Vertaal dit document naar jouw taal. PoliticalRepo bewaart geen aparte kopie per EU-taal.
Vertaal naar
Documentvertaling op verzoek met downloadbare PDF (logo + link naar de officiële bron). Het bronbestand blijft leidend.

Related records

related to ← Mining Regulatory Clarity Act
related to ← Department of the Interior, Environment, and Related Agencies Appropriations Act, 2026

Sources

PoliticalRepo is an index and interpretation layer, not the authoritative legal source.

Official source: https://www.congress.gov/bill/119th-congress/senate-bill/544
Open data entity: https://api.congress.gov/v3/bill/119/s/544
us · 119-s-544 · source updated 11 June 2026