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HR 1366 119th Congress House Environmental Protection Government trust funds Land use and conservation Mining

Mining Regulatory Clarity Act

Introduced: February 14, 2025 Introduced by: Amodei, Mark E. Republican · Nevada See on congress.gov
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White House position
Strongly supports Statement of Administration Policy · Trump administration · Dec 17, 2025 Read the SAP
 Everywhere this bill has been 23 steps
Introduced
In committee
Reported out
Passed House
Passed Senate
To President
Became law
Mar 17, 2026
Read twice. Placed on Senate Legislative Calendar under General Orders. Calendar No. 357.
Dec 18, 2025
POSTPONED PROCEEDINGS - At the conclusion of debate on H.R. 1366, the Chair put the question on motion to recommit and by voice vote announced the noes had prevailed. Ms. Leger Fernandez demanded the yeas and nays and the Chair postponed further proceedings until a time to be announced.
Dec 18, 2025
Rule provides for consideration of H.R. 4776, H.R. 1366, H.R. 845, H.R. 3616, H.R. 3632 and H.R. 4371. The resolution provides for consideration of H.R. 4776, under a structured rule and H.R. 1366, H.R. 845, H.R. 3616, H.R. 3632, and H.R. 4371 under a closed rule. The resolution provides one motion to recommit on each bill.
Dec 18, 2025
On motion to recommit Failed by the Yeas and Nays: 205 - 213 (Roll no. 357).
Dec 18, 2025
Considered as unfinished business. (consideration: CR H6069-6070)
Dec 18, 2025
The previous question on the motion to recommit was ordered pursuant to clause 2(b) of rule XIX.
Dec 18, 2025
Received in the Senate.
Dec 18, 2025
Motion to reconsider laid on the table Agreed to without objection.
Dec 18, 2025
On passage Passed by the Yeas and Nays: 219 - 198 (Roll no. 358). (text of amendment in the nature of a substitute: CR H6044)
Dec 18, 2025
DEBATE - The House proceeded with one hour of debate on H.R. 1366.
Dec 18, 2025
Ms. Leger Fernandez moved to recommit to the Committee on Natural Resources. (text: CR H6049)
Dec 18, 2025
The previous question was ordered pursuant to the rule.
Dec 18, 2025
Considered under the provisions of rule H. Res. 951. (consideration: CR H6044-6049)
Dec 16, 2025
Rules Committee Resolution H. Res. 951 Reported to House. Rule provides for consideration of H.R. 4776, H.R. 1366, H.R. 845, H.R. 3616, H.R. 3632 and H.R. 4371. The resolution provides for consideration of H.R. 4776, under a structured rule and H.R. 1366, H.R. 845, H.R. 3616, H.R. 3632, and H.R. 4371 under a closed rule. The resolution provides one motion to recommit on each bill.
Nov 25, 2025
Reported (Amended) by the Committee on Natural Resources. H. Rept. 119-386.
Nov 25, 2025
Placed on the Union Calendar, Calendar No. 336.
Sep 17, 2025
Ordered to be Reported (Amended) by the Yeas and Nays: 25 - 17.
Sep 17, 2025
Subcommittee on Energy and Mineral Resources Discharged
Sep 17, 2025
Committee Consideration and Mark-up Session Held
Sep 3, 2025
Subcommittee Hearings Held
Aug 29, 2025
Referred to the Subcommittee on Energy and Mineral Resources.
Feb 14, 2025
Introduced in House
Feb 14, 2025
Referred to the House Committee on Natural Resources.
 Votes taken on this bill 2
DateChamberWhat was voted onResultYes–No
Dec 18, 2025 House · vote #358 On Passage Passed 219–198 See who voted →
Dec 18, 2025 House · vote #357 On Motion to Recommit Failed 205–213 See who voted →
 Amendments to this bill 1

1 agreed to

AmendmentSponsorPurposeStatusLatest action
HAMDT 141 — Pursuant to the provisions of H. Res. 951, the amendment in the nature of a substitute recommended by the Com… Agreed to Dec 18, 2025
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 Plain-English summary Congressional Research Service

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.

What's happening now March 17, 2026

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

 Hearings & markups 3
 Related & companion bills 3
  • S 544 Related bill Mining Regulatory Clarity Act
  • HR 4754 Related bill Department of the Interior, Environment, and Related Agencies Appropriations Act, 2026
  • HRES 951 Related bill Providing for consideration of the bill (H.R. 4776) to amend the National Environmental Policy Act of 1969 to clarify a…
 Bill text 5 versions

Source documents hosted by congress.gov.

 Committees of jurisdiction 2
 Lobbying activity 77

Registered lobbyists who named this bill in their disclosure filings. Source: federal Lobbying Disclosure Act filings.

See all 77 filings →
 Cosponsors 2
All 2 Democratic 1 Republican 1
R
Begich, Nicholas J.
Alaska · Sep 16, 2025
 D
Horsford, Steven
Nevada · Feb 14, 2025
Cite this page click to expand
APA
U.S. Congress. (2026). H.R. 1366: Mining Regulatory Clarity Act. 119th Congress. Open America. https://openamerica.io/bill/119-HR-1366/
MLA
"H.R. 1366: Mining Regulatory Clarity Act." 119th Congress, 2026, Open America, https://openamerica.io/bill/119-HR-1366/.
Bluebook (legal)
H.R. 1366, 119th Cong. (2026), https://openamerica.io/bill/119-HR-1366/.
Markdown link
[H.R. 1366: Mining Regulatory Clarity Act](https://openamerica.io/bill/119-HR-1366/)
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