40 C.F.R. § 98.413
P = Mass of fluorinated GHG, fluorinated HTF, or nitrous oxide produced annually.
Pp = Mass of fluorinated GHG, fluorinated HTF, or nitrous oxide produced over the period "p".
Where:
Pp = Mass of fluorinated GHG, fluorinated HTF, or nitrous oxide produced over the period "p" (metric tons).
Op = Mass of fluorinated GHG, fluorinated HTF, or nitrous oxide that is measured coming out of the production process over the period p (metric tons).
Up = Mass of used fluorinated GHG, fluorinated HTF, or nitrous oxide that is added to the production process upstream of the output measurement over the period "p" (metric tons).
Where:
T = Mass of fluorinated GHG, fluorinated HTF, or nitrous oxide transformed annually (metric tons).
FT = Mass of fluorinated GHG fed into the transformation process annually (metric tons).
ET = The fraction of the fluorinated GHG, fluorinated HTF, or nitrous oxide fed into the transformation process that is transformed in the process (metric tons).
Where:
D = Mass of fluorinated GHG or fluorinated HTF destroyed annually (metric tons).
FD = Mass of fluorinated GHG or fluorinated HTF fed into the destruction device annually (metric tons).
DE = Destruction efficiency of the destruction device (fraction).
40 C.F.R. §98.413