Bill

H.R. 1366 (119th): Mining Regulatory Clarity Act

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.

house · Substantive

Rankings updated October 26, 2026, 11:44 AM ET · Votes through September 30, 2026
Exported candidates: 719 | Filings on file, by office: H: 5838 | P: 1467 | S: 1567. These counts include every filing for that office, so they are larger than the ranked list. One person can have more than one filing. Non-voting delegates are left out.

Recorded summary

The bill lets hardrock mining operators locate and include in their plans of operations as many mill site claims as are reasonably necessary for ancillary activities such as waste rock disposal, regardless of whether the land contains valuable mineral deposits. It lets operators use or occupy public land under an approved plan of operations. It responds to a 2022 Ninth Circuit decision involving the Rosemont Copper Mine. Fees from these mill site claims must be deposited into a newly established Abandoned Hardrock Mine Fund, which the Department of the Interior must use for certain abandoned hardrock mine reclamation activities.

abandoned_mine_reclamationenvironmental_regulationminingmining_regulationpublic_lands

Theological note: This bill raises stewardship questions: how public land is used for resource extraction and waste disposal, whether mining activity is fairly regulated and bounded by approved plans, and whether harms left by abandoned mines are repaired. Scripture's mandate to till and keep the earth and to avoid waste and injustice toward neighbors and land is relevant, but the measure's core is a land-management and claims-procedure dispute rather than a direct moral act of harm or restraint.

How this bill is scored

Recorded votes

Roll 357 · 18-Dec-2025 2:42 PM · On Motion to Recommit · Failed

Yea 205 · Nay 213 · Other 15

Yea

Nay

Other

Roll 358 · 18-Dec-2025 2:45 PM · On Passage · Passed

Yea 219 · Nay 198 · Other 16

Yea

Nay

Other

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