The EPA invites public comment on the potential for expanded use of advanced and emerging technologies for methane emissions quantification in EPA's Greenhouse Gas Reporting Program GHGRP. These technologies are an important part of EPA's GHGRP including under the recently finalized amendments for Petroleum and Natural Gas Systems. EPA intends to use the feedback received in response to this RFI to consider whether it is appropriate to undertake further rulemaking addressing the use of advanced measurement technologies in the GHGRP for petroleum and natural gas systems and municipal solid waste MSW landfills beyond the current role provided in existing rules for these technologies.