Georgia Department of Natural Resources
Environmental Protection Division, Air Protection Branch

All Part 70 major source facilities must respond to the call for participation in the annual Emission Inventory data submittal. This process is called the Emission Inventory System (EIS) and consists of two parts - the Facility Inventory (FI) and the Emission Inventory (EI).

• Emission Inventory (EI) - The EI contains information that may change from year to year and annual emissions information for pollutants from processes. The EI part of the EIS closes at the end of each annual EI collection process.

The emission inventory is required by federal regulation 40 CFR Part 51 - Air Emissions Reporting Requirements (AERR) and requires that emissions data be collected from certain facilities by all state agencies responsible for regulating air pollution. Georgia's Air Protection Branch is also collecting emissions data to obtain information necessary for the development of State Implementation Plans required by the 8-hr ozone NAAQS and the PM2.5 NAAQS. This is being conducted under the authority of Georgia Rule 391-3-1-.02(6)(b)1.(i).

Significant changes were made after the new AERR rule that was finalized in December 2008. The definition of a point source was changed to be more in line with a Title V major source based on potential emissions. Therefore, the threshold tables are based on potential emissions although actual emissions are reported in the data collection process. The State also has less time to submit the completed inventory to EPA, resulting in earlier facility submittal deadlines.

For assistance in calculating the PTE for a facility, please see the Potential to Emit Guidelines web page. Additionally, the most recent initial or renewal Title V application for the facility will have information on the facility wide PTE and can be found in the Title V Applications Online website.

NOTE: Facilities identified by the Air Protection Branch (APB) as those that might need to participate in the Calendar Year 2012 emissions inventory will be receiving information about the process in the mail between late February and early March 2013.

Facilities whose potential emissions equal or exceed the thresholds shown in the table below for any of the indicated pollutants are required to submit emissions data by the deadline - August 1, 2013. To assist facilities in determining their need to participate in the EIS, participation questions have been introduced for the 2011 EIS submittal.