Subpart S Summary Facility and Emissions Information
Note: The Cal e-GGRT help system includes general instruction on using the California GHG reporting tool. However, the help system may not explain differences between California and U.S. EPA reporting requirements. Please refer to the ARB reporting website for California-specific reporting requirements and additional help.


This page provides step-by-step instructions to enter Subpart S summary and emissions information about your facility.

Adding or Updating Summary Facility and Emissions Information

To add or update Subpart S summary information for your facility, locate the SUBPART S SUMMARY INFORMATION FOR THIS FACILITY table on the Subpart S Overview page, and click OPEN.

Click image to expand

Subpart S requires you to report the following data about your facility:

  • The total annual CO2 process emissions from all kilns combined (metric tons)

For assistance in calculating CO2 process emissions from all kilns, msut download calculation spreadsheets for this subpart by clicking the link located below the red emissions data entry box titled "Use Subpart S equation spreadsheets to calculate,” then following the provided instructions. When you have completed the spreadsheets, they must be saved and uploaded to Cal e-GGRT using the BROWSE and UPLOAD buttons.

Subpart S also requires you to report the following:

  • The annual lime production capacity of your entire facility (metric tons)
  • An indication of whether CO2 was used on-site (i.e. for use in a purification process)
  • If CO2 was used on-site, Subpart S also requires you to report the following information:
    • The annual amount of CO2 captured for use in the on-site process (metric tons)
    • The method used to determine the amount of CO2 captured

When you have entered the required information, click SAVE

If you don't have all the data, you can enter some now, save it, and finish it later

After you save the data on this page, the next time you open the page, the calculator on the top of the page will display the CO2 process emissions for your facility, rounded to the nearest metric ton. The value displayed is for informational purposes only.

Click image to expand

#Back to Top

See Also

Screen Errors
Using Cal e-GGRT to Prepare Your Subpart S Report
Subpart S Lime Product Information
Subpart S Calcined-lime Byproduct or Waste Information
Subpart Validation Report

This web site is maintained by a contractor to the California Air Resources Board (RY2015.R.03)