Air Emissions Reporting Requirements (AERR) (Renewal)

The EPA promulgated the Air Emissions Reporting Requirements (AERR) (40 CFR part 51 subpart A) to coordinate emissions inventory reporting requirements with existing requirements of the Clean Air Act and 1990 Amendments. Under this reporting, 54 State and Territorial air quality agencies, including the District of Columbia, as well as an estimated 31 local and tribal air quality agencies submit emissions data (including mobile model inputs) every 3 years for all point, non-point, on-road mobile, and non-road mobile sources of volatile organic compounds, oxides of nitrogen, carbon monoxide, sulfur dioxide, particulate matter less than or equal to 10 micrometers in diameter, particulate matter less than or equal to 2.5 micrometers in diameter, ammonia, and lead. In addition, the air quality agencies must submit annually emission data for point sources emitting at greater than specified levels of those pollutants. The data supplied to the emission reporting requirement is needed so that the EPA can compile and make available a national inventory of air pollutant emissions. A comprehensive inventory updated at regular intervals is essential to allow the EPA to fulfill its mandate to monitor and plan for the attainment and maintenance of the national ambient air quality standards established for criteria pollutants. The EPA makes the inventory available to states for air quality planning and to the public at large. This information is collected under 23 U.S.C. 101; 42 U.S.C 7401-7671q, and the authority of the AERR. This information is mandatory and, as specified, cannot be treated as confidential by the EPA. The number and frequency of data collection and submittal is expected to remain the same for 20222024.

The latest form for Air Emissions Reporting Requirements (AERR) (Renewal) expires 2026-04-30 and can be found here.