Bills · 119th Congress · Environmental Protection

Mining Regulatory Clarity Act

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Roll calls on this bill

Votes on passage
HouseOn Passage · 12/18/25PassageThe vote on whether this chamber approves the measure — usually by a simple majority of those voting. It becomes law only once both chambers pass the same text and the president signs it, or Congress overrides a veto.House: The Legislative Process ↗
Passed
  • Democratic9 Yea · 197 Nay · 7 Not voting
  • Republican209 Yea · 1 Nay · 9 Not voting
  • Independent / Other1 Yea · 0 Nay · 0 Not voting
Official summary (CRS)

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.

Full text on congress.gov ↗
Sponsor
Rep. Mark E. Amodei ( Republican · NV-2)
Cosponsors
2
Introduced
2/14/25
Policy area
Environmental Protection
Status
2/14/25Referred to the House Committee on Natural Resources.
2/14/25Introduced in House
8/29/25Referred to the Subcommittee on Energy and Mineral Resources.
9/3/25Subcommittee Hearings Held
9/17/25Ordered to be Reported (Amended) by the Yeas and Nays: 25 - 17.
9/17/25Committee Consideration and Mark-up Session Held
9/17/25Subcommittee on Energy and Mineral Resources Discharged
11/25/25Placed on the Union Calendar, Calendar No. 336.
11/25/25Reported (Amended) by the Committee on Natural Resources. H. Rept. 119-386.
12/16/25Rules 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.
12/18/25Received in the Senate.
12/18/25Motion to reconsider laid on the table Agreed to without objection.
12/18/25On passage Passed by the Yeas and Nays: 219 - 198 (Roll no. 358). (text of amendment in the nature of a substitute: CR H6044)
12/18/25Passed/agreed to in House: On passage Passed by the Yeas and Nays: 219 - 198 (Roll no. 358).
12/18/25On motion to recommit Failed by the Yeas and Nays: 205 - 213 (Roll no. 357).
12/18/25Considered as unfinished business. (consideration: CR H6069-6070)
12/18/25POSTPONED 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.
12/18/25The previous question on the motion to recommit was ordered pursuant to clause 2(b) of rule XIX.
12/18/25Ms. Leger Fernandez moved to recommit to the Committee on Natural Resources. (text: CR H6049)
12/18/25The previous question was ordered pursuant to the rule.
12/18/25DEBATE - The House proceeded with one hour of debate on H.R. 1366.
12/18/25Rule 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.
12/18/25Considered under the provisions of rule H. Res. 951. (consideration: CR H6044-6049)
3/17/26Read twice. Placed on Senate Legislative Calendar under General Orders. Calendar No. 357.