If it becomes impracticable to seal the way the UMM proposed, what must the UMM do?

• A. Take reasonable steps to notify Inspector, ISHR or SSHR of the changes and confirm in writing as soon as practicable
• B. Seal anyway without notification
• C. Do nothing
• D. Seek verbal consent only

Answer: (A)

When a proposed seal cannot be implemented, the mine manager must promptly inform the Inspector and the safety representatives (ISHR or SSHR) in writing as soon as practicable. This ensures those overseeing the mine are aware of changes to the sealing plan, can assess the ongoing risk, and can approve or adjust alternative measures. The written notice should explain why sealing is impracticable, outline any temporary or alternative controls being used, and describe how ventilation, gas control, and emergency arrangements are affected. This formal communication maintains safety oversight and a clear record, which is essential to regulatory compliance.