Q765. How do I determine “actual” temperature and pressure in emission calculations?

A765. Unless otherwise specified in a calculation requirement, reporters should use average atmospheric conditions or typical operating conditions as applicable to the respective monitoring methods. As stated in 40 CFR 98.233, “you must calculate and report the annual GHG emissions as prescribed in this section. For calculations that specify measurements in actual conditions, reporters may use a flow or volume measurement system that corrects to standard conditions and determine the flow or volume at standard conditions; otherwise, reporters must use average atmospheric conditions or typical operating conditions as applicable to the respective monitoring methods in this section.”