House · On PassagePassed
Yea 219 Nay 198 Present / not voting 16
H.R. 1366 · 119th CongressIn committee
Mining Regulatory Clarity Act
Latest action. Read twice. Placed on Senate legislative calendarThe list of measures reported out of committee and eligible for floor action. Being on the calendar is not a promise of a vote.Read the full definition (opens a new tab) under General Orders. Calendar No. 357.
Live record from Congress.gov, updated as the official record changes.
What this bill would do
Official summary · Congressional Research ServiceMining 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.
Written by analysts at the Congressional Research Service and published on Congress.gov, not by Civibrief. Summarized at the "Reported to House" stage on November 25, 2025. It describes the bill, it is not the legal text.
Status
Introduced
February 14, 2025
In committee
March 17, 2026
Passed a chamber
Cleared Congress
Enacted
Common questions
Composed from the official recordWhere is it in the process, and what happens next?
4 steps remain before this bill could become law.
The record's latest action, on March 17, 2026: Read twice. Placed on Senate Legislative Calendar under General Orders. Calendar No. 357.
- Clearing the committees it was referred to, and being scheduled for a floor vote
- Passage by the House
- Passage by the Senate
- The President's signature. If the President vetoes it, two-thirds of both chambers must vote to override.
How likely is it to become law?
Civibrief does not forecast outcomes and this page has no opinion about this one. What the record supports is a base rate, which is a fact about the whole pile, not a prediction about this measure.
In the 118th Congress (2023-24), 274 of the 16,565 bills and joint resolutions introduced became law, about 1.7 percent. That count covers every measure at every stage, including the many that never left committee.
This one is not there yet: 4 steps are still outstanding, listed above.
Has anyone actually voted on it?
Yes. 2 recorded roll-call votes cite this measure, listed further down this page with every member's position.
Who is behind it?
Mark Amodei (R-NV) introduced it on February 14, 2025, and 2 members have since signed on as cosponsors.
They come from both major parties: 1 Democrat, 1 Republican.
Cosponsoring is a formal signature on the text. It is not a commitment to vote for the measure, it does not bind anyone's party, and a long list of cosponsors is a measure of attention rather than of prospects.
How long has it been in play?
It was introduced on February 14, 2025, 573 days ago. The most recent recorded action was 177 days ago, on March 17, 2026.
Measures do not carry over. Anything the 119th Congress has not finished by January 3, 2027 dies when the term ends, and has to be introduced again from the start in the next Congress.
Every answer above is assembled from this measure's own record on Congress.gov and from published counts of what Congress has passed before. Civibrief does not predict outcomes and takes no position on any measure.
Vote history
- HousePassed on a recorded vote (official bill record may lag)
- SenateAwaiting Senate vote
- PresidentAwaits both chambers
House · On Motion to RecommitFailed
Yea 205 Nay 213 Present / not voting 15