This action finalizes changes to the Environmental Protection Agency’s (EPA) emissions inventory reporting requirements to collect data needed for the EPA to implement pollution reduction programs and address environmental justice concerns. The amendments in this action would ensure that the EPA has sufficient information to identify and solve air quality and exposure problems. The amendments would also allow the EPA to have information readily available that the Agency needs to protect public health and perform other activities under the Clean Air Act (CAA or “the Act”). Further, the amendments would ensure that communities have the data needed to understand significant sources of air pollution that may be impacting them—including potent carcinogens and other highly toxic chemicals linked with a wide range of chronic and acute health problems.