FAQs > Rule Subparts > Subpart OO. Suppliers of Industrial Greenhouse Gases > Q364. How do I calculate addition to the "net supply"?
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Q364. How do I calculate addition to the "net supply"?


A364. For importers and exporters, the net addition to the supply is calculated by subtracting the quantities of each industrial GHG exported (and, in some cases, destroyed) from the quantity of that GHG imported. For production facilities, the net addition to the supply is calculated by subtracting the quantities of each industrial GHG transformed or destroyed from the quantity of that GHG produced. Note that if a facility produces and transforms or creates and destroys an industrial GHG without ever sending that industrial GHG off-site, it does not need to report its production, transformation, or destruction of that industrial GHG under subpart OO. However, if the facility produces an industrial GHG and also accepts that industrial GHG from outside the facility for transformation or destruction, it does need to report the quantities produced, transformed, and destroyed under subpart OO, and it does need to calculate its net addition to the supply of that GHG for input into e-GGRT.

Note that your net addition to the supply of a particular industrial GHG may be negative, e.g., if you export that industrial GHG but do not import it.


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