(New South Wales) Work Health and Safety (Mines and Petroleum Sites) Regulation 2014

Last updated: 17 November 2022

While predominantly to do with safety, this regulation directly notes methane levels and the obligation to reduce methane leaks for workplace health and safety. 
The updated 2022 regulation outlines requirements regarding the control and monitoring of methane levels so as not to exceed a general body of air concentration of 2% (Part 3, Division 5, Section 76). Subsequent sections specify gas detection equipment standards and ventilation control plans. Section 184 defines the removal of gas from underground mines for the purposes of ensuring safety as a mining operation rather than a petroleum operation. 

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