The Us Epa mandated in May 2016 that operators reduce methane emissions and emissions of volatile organic compounds (VOC) from new modified and reconstructed crude oil and natural gas wells and equipment located at natural gas production and booster stations, as well as natural gas transmission compressor stations. In November 2021, the Us Epa proposed a rule to further reduce methane and Voc emissions from new and existing sources in the oil and natural gas sector.