Subpart AA Process Unit Information for Units Monitored by CEMS for All Reporting Years


This page provides step-by-step instructions on how to enter and edit Subpart AA Pulp and Paper Manufacturing process unit information for units that are monitored by a Continuous Emissions Monitoring System (CEMS).

You will either list units as furnaces in the UNIT AND FURNACE SUMMARY section in e-GGRT or in the UNIT AND FURNACE SUMMARY (UNITS AND FURNACES MONITORED BY CEMS) section, but not both.

Step 1: Add, modify or delete a unit

To add a unit that is monitored by a CEMS, find the UNIT AND FURNACE SUMMARY (UNITS AND FURNACES MONITORED BY CEMS) table on the Subpart Overview page and click the link titled "ADD a Unit Monitored by CEMS".

To modify a unit, click the Name/ID link located in the first column of the UNIT AND FURNACE SUMMARY (UNITS AND FURNACES MONITORED BY CEMS) table.

To delete a unit, click the delete icon located in the last column of the UNIT AND FURNACE SUMMARY (UNITS AND FURNACES MONITORED BY CEMS) table after a unit or furnace is added.

Click this link to expand

Step 2: Indicate CEMS utilization for a unit

For each process unit, confirm whether or not the process unit utilizes CEMS

Note that when adding a new unit you are prompted to answer the CEMS question immediately (the answer to this question will default to “No” for units added using the “ADD a Unit” link and will default to “Yes” for units added using the “ADD a Unit Monitored by CEMS” link)

The CEMS response may be changed here and the unit information will be relocated to the appropriate table on the Subpart Overview page

When finished, click SAVE

Click this link to expand

Step 3: Enter required information for a unit

For each process unit monitored by a CEMS, report the following required information:

  • A unique name or identifier for the unit, plus optional description for this facility (see also About Unique Unit Names)
  • The unit type, selected from the following:
    • Chemical Recovery Furnace
    • Chemical Recovery Combustion Unit
    • Pulp Mill Lime Kiln
  • Indicate whether the unit is monitored by a CEMS

When finished, click SAVE.

Note that once you enter and save identification for a unit or furnace monitored by CEMS, a CEMS Monitoring Location section appears in the Subpart Overview screen. Instructions for adding a CML and supplying the required emissions information are included in the “Subpart AA Emissions Information for Units Monitored by CEMS“ section of this document.

Click this link to expand

Step 4: Repeat Steps 1-3

Repeat Steps 1-3 until all process units monitored by a CEMS have been added for your facility

Back to Top

See Also

Screen Errors
Using e-GGRT to Prepare Your Subpart AA Report for RY2014 and Later
Subpart AA Process Unit Information for Units Monitored by CEMS for All Reporting Years
Subpart AA Process Unit Information for Units Monitored by CEMS for All Reporting Years
Subpart AA Process Unit Information for Units NOT Monitored by CEMS for All Reporting Years
Subpart AA Process Unit Information for Units Monitored by CEMS for All Reporting Years
Subpart AA Emissions Information for Makeup Chemical Usage for RY2014 and Later
Subpart AA Emissions Information for Units NOT Monitored CEMS for RY2014 and Later
Entering Emissions Information for Chemical Recovery Furnaces Using IVT
Entering Emissions Information for Chemical Recovery Combustion Units Using IVT
Entering Fuel-Specific Emissions Using IVT
Subpart AA Emissions Information for Units Monitored by CEMS for All Reporting Years
Subpart Validation Report


This web site is maintained by a contractor to the U.S. Environmental Protection Agency (RY2023.R.01)