H.R. 1366House119th Congress (2025-2027)Passed House

Mining Regulatory Clarity Act

Introduced February 14, 2025

AI-Generated Summary

Updated March 19, 2026 at 3:31 AM UTC

The Mining Regulatory Clarity Act clarifies how hard‑rock mining operators can claim multiple small mill sites on public land for waste disposal and related activities, without granting them mineral rights or altering existing mining claims. It also establishes a dedicated fund to collect fees from these mill sites and use the money for infrastructure projects related to abandoned hard‑rock mines. The bill updates some statutory language to reflect these changes.

Key Provisions

  • Allows owners of lode or placer mining claims to locate multiple "mill sites" on public land that are needed for waste rock, tailings, or other mining‑related operations, with each site limited to 5 acres.
  • A mill site does not convey any mineral rights, does not affect the validity of existing mining claims, and cannot be patented.
  • Creates an "Abandoned Hardrock Mine Fund" in the Treasury, funded by claim‑maintenance fees collected on these mill sites, which the Interior Secretary can spend without further appropriations to carry out provisions of the Infrastructure Investment and Jobs Act.
  • Makes minor editorial updates to existing statutes to reference the correct sections of the Revised Statutes of the United States.

Legislative Activity

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23 earlier actions
SenateCalendars Latest Action

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

March 17, 2026

View full timeline
HouseIntro Referral

Introduced in House

February 14, 2025

HouseIntro Referral

Referred to the House Committee on Natural Resources.

February 14, 2025

HouseCommittee

Referred to the Subcommittee on Energy and Mineral Resources.

August 29, 2025

HouseCommittee

Subcommittee Hearings Held

September 3, 2025

HouseCommittee

Subcommittee on Energy and Mineral Resources Discharged

September 17, 2025

HouseCommittee

Committee Consideration and Mark-up Session Held

September 17, 2025

HouseCommittee

Ordered to be Reported (Amended) by the Yeas and Nays: 25 - 17.

September 17, 2025

HouseCommittee

Reported (Amended) by the Committee on Natural Resources. H. Rept. 119-386.

November 25, 2025

HouseCalendars

Placed on the Union Calendar, Calendar No. 336.

November 25, 2025

HouseFloor

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.

December 16, 2025 • 9:59 AM

HouseFloor

Considered under the provisions of rule H. Res. 951. (consideration: CR H6044-6049)

December 18, 2025 • 11:03 AM

HouseFloor

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.

December 18, 2025 • 11:03 AM

HouseFloor

DEBATE - The House proceeded with one hour of debate on H.R. 1366.

December 18, 2025 • 11:04 AM

HouseFloor

The previous question was ordered pursuant to the rule.

December 18, 2025 • 11:36 AM

HouseFloor

Ms. Leger Fernandez moved to recommit to the Committee on Natural Resources. (text: CR H6049)

December 18, 2025 • 11:37 AM

HouseFloor

The previous question on the motion to recommit was ordered pursuant to clause 2(b) of rule XIX.

December 18, 2025 • 11:37 AM

HouseFloor

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.

December 18, 2025 • 11:37 AM

HouseFloor

Considered as unfinished business. (consideration: CR H6069-6070)

December 18, 2025 • 2:40 PM

HouseFloor

On motion to recommit Failed by the Yeas and Nays: 205 - 213 (Roll no. 357).

December 18, 2025 • 2:43 PM

HouseFloor

Passed/agreed to in House: On passage Passed by the Yeas and Nays: 219 - 198 (Roll no. 358).

December 18, 2025 • 2:46 PM

HouseFloor

On passage Passed by the Yeas and Nays: 219 - 198 (Roll no. 358). (text of amendment in the nature of a substitute: CR H6044)

December 18, 2025 • 2:46 PM

HouseFloor

Motion to reconsider laid on the table Agreed to without objection.

December 18, 2025 • 2:46 PM

SenateIntro Referral

Received in the Senate.

December 18, 2025

SenateCalendars

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

March 17, 2026

Floor Debate

20 members

What members said about H.R. 1366 on the floor

8 Republicans12 Democrats
Nicholas A. Langworthy
Rep. Nicholas A. LangworthyR-NY-23 · Dec 16, 2025

Mr. Speaker, by direction of the Committee on Rules, I call up House Resolution 951 and ask for its immediate consideration. Mr. Speaker, for the purpose of debate only, I yield the customary 30…

Jared Huffman
Rep. Jared HuffmanD-CA-2 · Dec 18, 2025

Mr. Speaker, I yield myself such time as I may consume. Mr. Speaker, I remind everyone that we are at the end of this year. We are running out of time to fix the healthcare crisis that Republicans…

Mary Gay Scanlon
Rep. Mary Gay ScanlonD-PA-5 · Dec 16, 2025

Mr. Speaker, I yield myself such time as I may consume. Mr. Speaker, I rise in strong opposition to today's rule. While Americans are going into the holiday season struggling with rising prices and…

Jared Huffman
Rep. Jared HuffmanD-CA-2 · Feb 4, 2026

Mr. Speaker, I yield myself such time as I may consume. Mr. Speaker, I rise in strong opposition to H.R. 4090, a bill that hands the mining industry, amazingly, the power to gut its own regulations…

Bruce Westerman
Rep. Bruce WestermanR-AR-4 · Feb 4, 2026

Mr. Speaker, pursuant to House Resolution 1032, I call up the bill (H.R. 4090) to codify certain provisions of certain Executive Orders relating to domestic mining and hardrock mineral resources, and…

Show 8 more
Bruce Westerman
Rep. Bruce WestermanR-AR-4 · Dec 18, 2025

Mr. Speaker, pursuant to House Resolution 951, I call up the bill (H.R. 1366) to provide for the location of multiple hardrock mining mill sites, to establish the Abandoned Hardrock Mine Fund, and…

Pete Stauber
Rep. Pete StauberR-MN-8 · Feb 4, 2026

Mr. Speaker, I rise in strong support of my bipartisan bill, H.R. 4090, the Critical Mineral Dominance Act. This bill will help strengthen our Nation's critical mineral security and enable our…

Teresa Leger Fernandez
Rep. Teresa Leger FernandezD-NM-3 · Feb 4, 2026

Mr. Speaker, we keep hearing from the other side that we need to mine in America, and we just heard the ranking member talk about how if we are going to mine in America, if we are going to mine…

Dave Min
Rep. Dave MinD-CA-47 · Dec 16, 2025

Mr. Speaker, it was with interest that I heard the remarks of my colleague from New York. I just wanted to correct a few things as someone who just won one of those swings seats that was in play last…

Pete Stauber
Rep. Pete StauberR-MN-8 · Dec 18, 2025

Mr. Speaker, I rise in strong support of H.R. 1366, the bipartisan, bicameral Mining Regulatory Clarity Act, offered by the gentleman from Nevada (Mr. Amodei), my good friend. The bill before us is…

Adelita S. Grijalva
Rep. Adelita S. GrijalvaD-AZ-7 · Feb 4, 2026

Mr. Speaker, I thank Ranking Member Huffman for yielding. Mr. Speaker, I strongly oppose H.R. 4090. This bill hands the mining industry the power to gut its own regulations. It directs the Secretary…

Teresa Leger Fernandez
Rep. Teresa Leger FernandezD-NM-3 · Dec 18, 2025

Mr. Speaker, mining corporations, including foreign-owned, pay nothing in royalties when they take our publicly owned minerals on our Federal lands. The American people get nada, zero, for our…

Paul Tonko
Rep. Paul TonkoD-NY-20 · Feb 4, 2026

Mr. Speaker, I thank the gentleman from California for yielding time. Mr. Speaker, I rise in opposition to this bill. Critical minerals are essential building blocks for a clean energy economy and…

Show 11 more
Tom McClintock
Rep. Tom McClintockR-CA-5 · Feb 4, 2026

Mr. Speaker, take a good look around you. Everything you see wherever you look, everything that makes your life comfortable, everything that makes your life possible--everything--is either mined, or…

Nikema Williams
Rep. Nikema WilliamsD-GA-5 · Dec 23, 2025

Mr. Speaker, I was unable to cast votes on Thursday, December 18, 2025. If I were present for Roll Call votes, I would have voted Aye on: Roll Call No. 355, On Motion to Recommit H.R. 4776, SPEED…

Joe Courtney
Rep. Joe CourtneyD-CT-2 · Dec 18, 2025

Mr. Speaker, I was absent from the chamber today. Had I recorded my vote, I would have voted No on Roll Call No. 352, Clyde amendment No. 1 to H.R. 4776; No on Roll Call No. 353, Roy amendment No. 5…

Steve Womack
Rep. Steve WomackR-AR-3 · Dec 18, 2025

Mr. Speaker, I was unavoidably absent and unable to vote. Had I been present, I would have voted AYE on Roll Call No. 352, AYE on Roll Call No. 353, AYE on Roll Call No. 354, NAY on Roll Call No.…

Earl L. "Buddy" Carter
Rep. Earl L. "Buddy" CarterR-GA-1 · Dec 18, 2025

Mr. Speaker, I was unavoidably detained. Had I been present, I would have voted AYE on Roll Call No. 352, AYE on Roll Call No. 353, AYE on Roll Call No. 354, NAY on Roll Call No. 355, YEA on Roll…

Sylvia R. Garcia
Rep. Sylvia R. GarciaD-TX-29 · Dec 16, 2025

Mr. Speaker, due to illness, I was unable to vote today. Had I been able to vote, I would have voted NAY on Roll Call No. 337, Ordering the Previous Question on H. Res. 951; and NAY on Roll Call No.…

Greg Casar
Rep. Greg CasarD-TX-35 · Dec 23, 2025

Mr. Speaker, had I been present, I would have voted: NAY on Roll Call No. 362, H.R. 498; NAY on Roll Call No. 360, H.R. 845; NAY on Roll Call No. 358, H.R. 1366; and NAY on Roll Call No. 356, H.R.…

Sam T. Liccardo
Rep. Sam T. LiccardoD-CA-16 · Dec 18, 2025

Mr. Speaker, I missed the following vote out of mistake and inadvertence due to the heavy (11-item) vote series. Had I been present, I would have voted NAY on Roll Call No. 356.

Jefferson Shreve
Rep. Jefferson ShreveR-IN-6 · Dec 18, 2025

Mr. Speaker, before I was able to vote, the vote was closed. Had I been present, I would have voted YEA on Roll Call No. 362, H.R. 498.

André Carson
Rep. André CarsonD-IN-7 · Dec 18, 2025

Mr. Speaker, on Roll Call No. 357, I inadvertently voted NAY. My intent was to vote YEA on the Democratic Motion to Recommit on

Glenn Grothman
Rep. Glenn GrothmanR-WI-6 · Dec 18, 2025

Mr. Speaker, I was in an important meeting. Had I been present, I would have voted YEA on Roll Call No. 358.

Bill Text

4 versions available

Reading Mode
Latest
Placed on Calendar SenateIssued March 17, 2026

II

Calendar No. 357

119th CONGRESS

2d Session

H. R. 1366

IN THE SENATE OF THE UNITED STATES

December 18, 2025

Received

March 17, 2026

Read twice and placed on the calendar

AN ACT

To provide for the location of multiple hardrock mining mill sites, to establish the Abandoned Hardrock Mine Fund, and for other purposes.

1.

Short title

This Act may be cited as the Mining Regulatory Clarity Act.

2.

Hardrock mining mill sites

(a)

Multiple mill sites

Section 2337 of the Revised Statutes of the United States (30 U.S.C. 42) is amended by adding at the end the following:

(c)

Additional mill sites

(1)

Definitions

In this subsection:

(A)

Mill site

The term mill site means a location of public land that is reasonably necessary for waste rock or tailings disposal or other operations reasonably incident to mineral development on, or production from land included in a plan of operations.

(B)

Operations; Operator

The terms operations and operator have the meanings given those terms in section 3809.5 of title 43, Code of Federal Regulations (as in effect on the date of enactment of this subsection).

(C)

Plan of operations

The term plan of operations means a plan of operations that an operator must submit and the Secretary of the Interior or the Secretary of Agriculture, as applicable, must approve before an operator may begin operations, in accordance with, as applicable—

(i)

subpart 3809 of title 43, Code of Federal Regulations (or successor regulations establishing application and approval requirements); and

(ii)

part 228 of title 36, Code of Federal Regulations (or successor regulations establishing application and approval requirements).

(D)

Public land

The term public land means land owned by the United States that is open to location under sections 2319 through 2344 of the Revised Statutes of the United States (30 U.S.C. 22 et seq.), including—

(i)

land that is mineral-in-character (as defined in section 3830.5 of title 43, Code of Federal Regulations (as in effect on the date of enactment of this subsection));

(ii)

nonmineral land (as defined in section 3830.5 of title 43, Code of Federal Regulations (as in effect on the date of enactment of this subsection)); and

(iii)

land where the mineral character has not been determined.

(2)

In general

Notwithstanding subsections (a) and (b), where public land is needed by the proprietor of a lode or placer claim for operations in connection with any lode or placer claim within the proposed plan of operations, the proprietor may—

(A)

locate and include within the plan of operations as many mill site claims under this subsection as are reasonably necessary for its operations; and

(B)

use or occupy public land in accordance with an approved plan of operations.

(3)

Mill sites convey no mineral rights

A mill site under this subsection does not convey mineral rights to the locator.

(4)

Size of mill sites

A location of a single mill site under this subsection shall not exceed 5 acres.

(5)

Mill site and lode or placer claims on same tracts of public land

A mill site may be located under this subsection on a tract of public land on which the claimant or operator maintains a previously located lode or placer claim.

(6)

Effect on mining claims

The location of a mill site under this subsection shall not affect the validity of any lode or placer claim, or any rights associated with such a claim.

(7)

Patenting

A mill site under this section shall not be eligible for patenting.

(8)

Savings provisions

Nothing in this subsection—

(A)

diminishes any right (including a right of entry, use, or occupancy) of a claimant;

(B)

creates or increases any right (including a right of exploration, entry, use, or occupancy) of a claimant on land that is not open to location under the general mining laws;

(C)

modifies any provision of law or any prior administrative action withdrawing land from location or entry;

(D)

limits the right of the Federal Government to regulate mining and mining-related activities (including requiring claim validity examinations to establish the discovery of a valuable mineral deposit) in areas withdrawn from mining, including under—

(i)

the general mining laws;

(ii)

the Federal Land Policy and Management Act of 1976 (43 U.S.C. 1701 et seq.);

(iii)

the Wilderness Act (16 U.S.C. 1131 et seq.);

(iv)

sections 100731 through 100737 of title 54, United States Code;

(v)

the Endangered Species Act of 1973 (16 U.S.C. 1531 et seq.);

(vi)

division A of subtitle III of title 54, United States Code (commonly referred to as the ‘National Historic Preservation Act’); or

(vii)

section 4 of the Act of July 23, 1955 (commonly known as the Surface Resources Act of 1955) (69 Stat. 368, chapter 375; 30 U.S.C. 612);

(E)

restores any right (including a right of entry, use, or occupancy, or right to conduct operations) of a claimant that—

(i)

existed prior to the date on which the land was closed to, or withdrawn from, location under the general mining laws; and

(ii)

that has been extinguished by such closure or withdrawal; or

(F)

modifies section 404 of division E of the Consolidated Appropriations Act, 2024 (Public Law 118–42).

.

(b)

Abandoned Hardrock Mine Fund

(1)

Establishment

There is established in the Treasury of the United States a separate account, to be known as the Abandoned Hardrock Mine Fund (referred to in this subsection as the Fund).

(2)

Source of deposits

Any amounts collected by the Secretary of the Interior pursuant to the claim maintenance fee under section 10101(a)(1) of the Omnibus Budget Reconciliation Act of 1993 (30 U.S.C. 28f(a)(1)) on mill sites located under subsection (c) of section 2337 of the Revised Statutes of the United States (30 U.S.C. 42) shall be deposited into the Fund.

(3)

Use

The Secretary of the Interior may make expenditures from amounts available in the Fund, without further appropriations, only to carry out section 40704 of the Infrastructure Investment and Jobs Act (30 U.S.C. 1245).

(4)

Allocation of funds

Amounts made available under paragraph (3)—

(A)

shall be allocated in accordance with section 40704(e)(1) of the Infrastructure Investment and Jobs Act (30 U.S.C. 1245(e)(1)); and

(B)

may be transferred in accordance with section 40704(e)(2) of that Act (30 U.S.C. 1245(e)(2)).

(c)

Clerical amendments

Section 10101 of the Omnibus Budget Reconciliation Act of 1993 (30 U.S.C. 28f) is amended—

(1)

by striking the Mining Law of 1872 (30 U.S.C. 28–28e) each place it appears and inserting sections 2319 through 2344 of the Revised Statutes of the United States (30 U.S.C. 22 et seq.);

(2)

in subsection (a)—

(A)

in paragraph (1)—

(i)

in the second sentence, by striking Such claim maintenance fee and inserting the following:

(B)

Fee

The claim maintenance fee under subparagraph (A)

; and

(ii)

in the first sentence, by striking The holder of and inserting the following:

(A)

In general

The holder of

; and

(B)

in paragraph (2)—

(i)

in the second sentence, by striking Such claim maintenance fee and inserting the following:

(B)

Fee

The claim maintenance fee under subparagraph (A)

; and

(ii)

in the first sentence, by striking The holder of and inserting the following:

(A)

In general

The holder of

; and

(3)

in subsection (b)—

(A)

in the second sentence, by striking The location fee and inserting the following:

(2)

Fee

The location fee

; and

(B)

in the first sentence, by striking The claim main tenance fee and inserting the following:

(1)

In general

The claim maintenance fee

.

Passed the House of Representatives December 18, 2025.

Kevin F. McCumber,

Clerk.

March 17, 2026

Read twice and placed on the calendar