FIP
(5) FIP means Federal Implementation Plan. (6) The term lb/hr means pounds per hour. (7) The term lb/MMBtu means pounds per million British thermal units of heat input to the fuel-burning unit. (8) NOX means nitrogen oxides. (9) Operating day means a 24-hour period between 12 midnight and the following midnight during which any fuel is combusted at any time in the BART unit. It is not necessary for fuel to be combusted for the entire 24-hour period. (10) The owner/operator means any person who owns or who operates, controls, or supervises a unit identified in paragraph (a) of this section. (11) PM means filterable total particulate matter. (12) SO2 means sulfur dioxide. (13) Unit means any of the units identified in paragraph (a) of this section.