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DRMS 2025-2026 Formal Rulemaking for Construction Materials and Hard Rock

• Notice of Formal Rulemaking - Hard Rock
• Notice of Formal Rulemaking - Construction Materials
• MLRB Hard Rock Rulemaking Schedule
• MLRB Construction Materials Rulemaking Schedule
• Final Draft Hardrock Rules Redline
• Final Draft Construction Materials Rule Redline

DRMS 2025-2026 Rulemaking for Mine Safety and Training Program: Tourist Mine Regulations

• Formal Rulemaking Information and Schedule
• Draft Redline Rules
• Please submit Tourist Mine Rulemaking comments to: dnr_drms_mlrb-submittals@state.co.us

Colorado Mine Fire Inventory Reports

• 2018 Colorado Mine Fire Inventory Report (pdf)
• 2013 Colorado Coal Fires Summary (pdf)
• 2023 Lewis Underground Coal Fire Report of Investigations (pdf)
• 2023 Marshall Mine Underground Coal Fire Report of Investigations (pdf)

Active Mines Program

• Guide to Public Participation in the 112 Reclamation Permit Application Process for
  Construction Materials and Hard Rock/Metal Mining Operations
• Get Information, File a Comment or Objection
• Report a Possible Violation or Illegal Activity

Denver Office Status

DRMS remains open for business through phone or email to serve the people of Colorado.  DRMS' main office buildings are currently open for scheduled appointments. To schedule an appointment, contact DRMS staff using our Staff Directory.  We will respond to customers as soon as possible. Visit the DNR website for more information on building status.