Subpart T Emissions Information


This topic provides a step-by-step description of how to enter Subpart T emissions information about this facility.

Use this page to enter the GHG data required by Subpart T. Please enter the information shown for this cover or carrier gas.

Step 1: Add a cover or carrier gas

Click the link named "ADD a Cover or Carrier Gas" from the subpart T Overview screen under the GHG COVER/CARRIER GASES table.

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Step 2: Enter cover gas information

Enter each cover gas used at the facility by selecting from the "GHG Cover or Carrier Gas" drop down menu.

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After selecting the cover gas, enter the annual usage rate for each cover gas identified, an explanation for any change (greater than 30%) in the facility’s usage rate (facility-wide) of each of the cover gases identified, and a description of any new melt protection technologies adopted that would account for reduced or increased GHG emissions.

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Click "SAVE". e-GGRT will return to the subpart T Overview screen.

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Step 3: Enter carrier gas information

If your facility uses a GHG carrier gas, select "Other GHG Cover Gas" from the drop down menu on the "Add/Edit Cover or Carrier Gas" page.

Enter the gas's name and CAS number. Leave the "Chemical Formula" field blank.

Enter a "0" (zero) in the "Annual Cover Gas Usage Rate" field.

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Click "SAVE". e-GGRT will return to the subpart T Overview screen.

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Step 4: Enter emissions information

Click "OPEN" to enter the total annual facility emissions resulting from the GHG's use as a cover or carrier gas:

  • Enter the total annual emissions
  • The method used to calculate the emissions.

If you select one of the Method T-2 options, complete the fields in the MISSING DATA INFORMATION section.

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Click "SAVE". e-GGRT will return to the subpart T Overview screen.

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