119th Congress
H.R. 1366
Mining Regulatory Clarity Act
- Introduced
- In committee
- Passed House
- Passed Senate
- To President
- Became law
- Sponsor
- Mark E. Amodei(R-NV)
- Introduced
- Feb 14, 2025
- Policy area
- Environmental Protection
- Committees
- House Committee on Natural Resources
- Official text
- Placed on Calendar Senate · Congress.gov page
Cosponsors (2)
Original cosponsors (1)
- Steven Horsford (D-NV)
Added later (1)
- Nicholas J. Begich III (R-AK) · Sep 16, 2025
Summary
Summary by the Congressional Research Service· describes the “Reported to House” version
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.
Roll-call votes
| Date | Vote | Result | Your members |
|---|---|---|---|
| Dec 18, 2025 House #358 | On Passage: Mining Regulatory Clarity Act | Passed | Set your home to see |
| Dec 18, 2025 House #357 | On Motion to Recommit: Mining Regulatory Clarity Act | Failed | Set your home to see |
Actions
- Mar 17, 2026 · Senate
Read twice. Placed on Senate Legislative Calendar under General Orders. Calendar No. 357. - Dec 18, 2025 · Senate
Received in the Senate. - Dec 18, 2025 · House
Motion to reconsider laid on the table Agreed to without objection. - Dec 18, 2025 · House
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
Passed/agreed to in House: On passage Passed by the Yeas and Nays: 219 - 198 (Roll no. 358). - Dec 18, 2025 · House
On motion to recommit Failed by the Yeas and Nays: 205 - 213 (Roll no. 357). - Dec 18, 2025 · House
Considered as unfinished business. (consideration: CR H6069-6070) - Dec 18, 2025 · House
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 · House
The previous question on the motion to recommit was ordered pursuant to clause 2(b) of rule XIX. - Dec 18, 2025 · House
Ms. Leger Fernandez moved to recommit to the Committee on Natural Resources. (text: CR H6049) - Dec 18, 2025 · House
The previous question was ordered pursuant to the rule. - Dec 18, 2025 · House
DEBATE - The House proceeded with one hour of debate on H.R. 1366. - Dec 18, 2025 · 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 18, 2025 · House
Considered under the provisions of rule H. Res. 951. (consideration: CR H6044-6049) - Dec 16, 2025 · House
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 · House
Placed on the Union Calendar, Calendar No. 336. - Nov 25, 2025 · House
Reported (Amended) by the Committee on Natural Resources. H. Rept. 119-386. - Sep 17, 2025
Ordered to be Reported (Amended) by the Yeas and Nays: 25 - 17. - Sep 17, 2025
Committee Consideration and Mark-up Session Held - Sep 17, 2025
Subcommittee on Energy and Mineral Resources Discharged - Sep 3, 2025
Subcommittee Hearings Held - Aug 29, 2025
Referred to the Subcommittee on Energy and Mineral Resources. - Feb 14, 2025 · House
Referred to the House Committee on Natural Resources. - Feb 14, 2025
Introduced in House