Montana Department of Environmental Quality About Us Permitting & Operator Assistance Public Participation

Hard Rock Mining | Notice of Proposed Rulemaking MAR No. 2026-853.1 | Comment Period Closes June 5, 2026 | Public Hearing June 3, 2026

  • May 08 2026

The Department of Environmental Quality (DEQ) is proposing rule amendments to implement House Bill 69, enacted by the 69th Montana Legislature in 2025, which revised hard rock mining and exploration fees under Title 82, chapter 4, part 3, MCA. DEQ also is proposing a definition for “reprocessing” to clarify the status of material subject to permitting requirements.  

Associated Materials:  

Proposal Notice

 
Comment Period Closes: June 5, 2026 
 
Submit Comments To: DEQMAR2026-853@mt.gov  
 

Hard Rock Mining Section 
Department of Environmental Quality 
P.O. Box 200901 
Helena MT 59601 


Tags: Public Comment, Public Meeting and Hard Rock