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Mining Regulatory Clarity Act (H.R. 1366)

Introduced
Introduced 2/14/2025•119th Congress•House

Latest Action

Read twice. Placed on Senate Legislative Calendar under General Orders. Calendar No. 357.

3/17/2026 • Senate

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.

Reported to House • 11/25/2025

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Topics & Subjects

Government trust fundsLand use and conservationMining

Amendments (1)

This bill has 1 amendment proposed or adopted.

View all amendments on Congress.gov

Related Federal Spending

Sponsor & Cosponsors (3)

Party Breakdown

1
Democrats
2
Republicans
0
Independents

Sponsor

R[
Rep. Amodei, Mark E. [R-NV-2]

Republican • NV-2

Sponsored 2/14/2025

Cosponsors (2)

R[
Rep. Horsford, Steven [D-NV-4]

D-NV-4

Joined 2/14/2025

Bill Journey

Originated in the House

Introduced

February 14, 2025

Committee Review

September 3, 2025

Floor Debate

December 18, 2025

Passed Chamber

December 18, 2025

Other Chamber

December 18, 2025

President

Failed

December 18, 2025

Text Versions (4)

Placed on Calendar Senate3/17/2026
Engrossed in House12/18/2025
Reported in House11/25/2025
Introduced in House2/14/2025

Committee Reports (1)

Related Bills (3)

S. 544

Mining Regulatory Clarity Act

RelatedView bill →

H.R. 4754

Department of the Interior, Environment, and Related Agencies Appropriations Act, 2026

RelatedView bill →

H.Res. 951

Providing for consideration of the bill (H.R. 4776) to amend the National Environmental Policy Act of 1969 to clarify ambiguous provisions and facilitate a more efficient, effective, and timely environmental review process; providing for consideration of the bill (H.R. 1366) to provide for the location of multiple hardrock mining mill sites, to establish the Abandoned Hardrock Mine Fund, and for other purposes; providing for consideration of the bill (H.R. 845) to require the Secretary of the Interior to reissue regulations removing the gray wolf from the list of endangered and threatened wildlife under the Endangered Species Act of 1973; providing for consideration of the bill (H.R. 3616) to require the Federal Energy Regulatory Commission to review regulations that may affect the reliable operation of the bulk-power system; providing for consideration of the bill (H.R. 3632) to amend the Federal Power Act to adjust the requirements for orders, rules, and regulations relating to furnishing adequate service, to require owners or operators of generating facilities to provide notice of planned retirements of certain electric generating units, and for other purposes; and providing for consideration of the bill (H.R. 4371) to amend the William Wilberforce Trafficking Victims Protection Reauthorization Act of 2008 to enhance efforts to combat the trafficking of children.

RelatedView bill →

Details

Bill TypeHR
Current StatusIntroduced
Cosponsors2

Sources and method

· Record updated Jul 23, 2026
  • Congress.govLibrary of Congress
    Status, actions, sponsors, cosponsors, committees and text
    Record updated Jul 23, 2026 · Loaded Oct 30, 2026, 9:49 PM ET
  • CRS bill summaryCongressional Research Service, via Congress.gov
    Official summary
    Summary of the “Reported to House” version, Nov 25, 2025 · Loaded Oct 30, 2026, 9:49 PM ET
  • House roll-call votesOffice of the Clerk, U.S. House of Representatives
    Roll-call results on this bill
    Latest roll call Dec 18, 2025 · Loaded Oct 30, 2026, 9:49 PM ET
  • USAspending.govU.S. Department of the Treasury
    Related Federal Spending section
  • FEC filingsFederal Election Commission
    Funding & Lobbying section
  • Lobbying disclosures (LDA)Secretary of the Senate and Clerk of the House
    Funding & Lobbying section

All sources: Public domain (17 U.S.C. § 105) · Method: Data sources → · Campaign finance →

AI-written text on this page is labeled where it appears. It is written from the sources above and is not a source itself. How we analyze data →

Dates shown where the source reports one. “Loaded” is when CIV.IQ last fetched the record.