Mining Regulatory Clarity Act
- Introduced Feb 14
- Committee Feb 14
- Passed House Dec 18
- Passed Senate Next
- To President Not yet
- Law Not yet
Where it stands
Passed House, Dec 18, 2025Next: Senate vote
225d ago Mar 17, 2026: Read twice. Placed on Senate Legislative Calendar under General Orders. Calendar No. 357.
Final votes
House 219-198
2 roll calls on this bill
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Votes
House roll 358
On Passage
R 210-1 D 9-197
219-198
Passed
Procedural votes1
House roll 357
On Motion to Recommit
R 0-212 D 205-1
205-213
Failed
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Summary
Mining Regulatory Clarity Act
Full summary4 paragraphs
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.
Library of Congress summary, Nov 25, 2025
Summary versions
- Reported to HouseNov 25, 2025
Actions
- SenateRead twice. Placed on Senate Legislative Calendar under General Orders. Calendar No. 357.Mar 17, 2026
- HouseMotion to reconsider laid on the table Agreed to without objection.Dec 18, 2025
- HousePassed/agreed to in House: On passage Passed by the Yeas and Nays: 219 - 198 (Roll no. 358).Dec 18, 2025
- HouseOn 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
- HouseOn motion to recommit Failed by the Yeas and Nays: 205 - 213 (Roll no. 357).Dec 18, 2025
- HouseConsidered as unfinished business. (consideration: CR H6069-6070)Dec 18, 2025
- HousePOSTPONED 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
- HouseThe previous question on the motion to recommit was ordered pursuant to clause 2(b) of rule XIX.Dec 18, 2025
- HouseMs. Leger Fernandez moved to recommit to the Committee on Natural Resources. (text: CR H6049)Dec 18, 2025
- HouseThe previous question was ordered pursuant to the rule.Dec 18, 2025
- HouseDEBATE - The House proceeded with one hour of debate on H.R. 1366.Dec 18, 2025
- HouseRule 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
All actions24
- HouseConsidered under the provisions of rule H. Res. 951. (consideration: CR H6044-6049)Dec 18, 2025
- SenateReceived in the Senate.Dec 18, 2025
- HouseRules 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.Dec 16, 2025
- HouseReported (Amended) by the Committee on Natural Resources. H. Rept. 119-386.Nov 25, 2025
- HousePlaced on the Union Calendar, Calendar No. 336.Nov 25, 2025
- HouseSubcommittee on Energy and Mineral Resources DischargedSep 17, 2025
- HouseCommittee Consideration and Mark-up Session HeldSep 17, 2025
- HouseOrdered to be Reported (Amended) by the Yeas and Nays: 25 - 17.Sep 17, 2025
- HouseSubcommittee Hearings HeldSep 3, 2025
- HouseReferred to the Subcommittee on Energy and Mineral Resources.Aug 29, 2025
- HouseIntroduced in HouseFeb 14, 2025
- HouseReferred to the House Committee on Natural Resources.Feb 14, 2025
Bill record
Text versions4
- Placed on Calendar SenateMar 17, 2026PDF: Placed on Calendar Senate
- Engrossed in HouseDec 18, 2025PDF: Engrossed in House
- Reported in HouseNov 25, 2025PDF: Reported in House
- Introduced in HouseFeb 14, 2025PDF: Introduced in House
Committees1
- House Natural Resources CommitteeReported By Nov 25, 2025Markup By, Sep 17, 2025Discharged from, Sep 17, 2025Referred To, Feb 14, 2025
- Subcommittee: Energy and Mineral Resources SubcommitteeHearings By (subcommittee)
Sponsor and cosponsors2 cosponsors
- Rep. Mark Amodei (R-NV-2)Sponsor, Feb 14, 2025
- Steven Horsford (D-NV-4)OriginalJoined Feb 14, 2025
- Nicholas Begich (R-AK)Joined Sep 16, 2025
Amendments1
- H.Amdt. 141Dec 18, 2025Pursuant to the provisions of H. Res. 951, the amendment in the nature of a substitute recommended by the Committee on the Natural Resources is considered adopted.On agreeing to the Rules amendment (A001) Agreed to without objection.
Cost estimates and reports1
- H. Rept. 119-386Committee report
Titles3
Short titles
- Mining Regulatory Clarity ActShort Title(s) from PCS (Placed on Senate Calendar) bill text
- Mining Regulatory Clarity Act of 2025Short Title(s) as Introduced
Official titles
- To provide for the location of multiple hardrock mining mill sites, to establish the Abandoned Hardrock Mine Fund, and for other purposes.Official Title from EH (Engrossed in House) bill text
Subjects4
Policy area
Legislative subjects
Government trust fundsLand use and conservationMining
Related bills3
- S. 544 119th, Related bill, Related bill Mining Regulatory Clarity Act
- H.R. 4754 119th, Related bill Department of the Interior, Environment, and Related Agencies Appropriations Act, 2026
- H.Res. 951 119th, Related bill, Procedurally related 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.
Official record from Congress.gov, the House Clerk and the Senate; lobbying from Lobbying Disclosure Act filings. Updated Oct 27, 2026.