### sec.249 Ventilation split or main return airway An underground mine must have a standard operating procedure for taking action when methane, at a general body concentration stated in the procedure, is detected at a ventilation split or main return airway.

Previous sectionsec.248Non-explosion-protected vehicle powered by a battery or an internal combustion engine Next sectionsec.250Action to be taken if methane detector activates or is non-operational

Section sec.249 - Coal Mining Safety and Health Regulation 2017 - Ventilation split or main return airway — Zoe