Recent U.S. legislative action includes the 2022 Ination Reduction Act (IRA), which funds a number of initiatives to reduce GHG emissions. As with most governmental initiatives, the IRA relies on the inventories as the basis for GHG accounting; for the U.S. these inventories are the U.S. Environmental Protection Agency (EPA) Greenhouse Gas Reporting Program (GHGRP) and the Greenhouse Gas Inventory (GHGI). Both are considered activity-based BU inventories, and have been used as basis for public policy decisions. By 2024, the IRA requires the EPA to revise its GHGRP reporting methods and establish methane emission fees based on empirical data that "accurately reect the total methane emissions." The IRA also allows owners and operators of applicable facilities to submit empirical emissions data for compliance with the methane fees. As an indicator of broad support for direct measurements, in 2023, corporate investors led 10 resolutions 22 calling for direct measurements instead of conventional inventory estimates of emissions. The combination of investor action and regulatory changes indicates broad support for direct measurements of emissions.