NORTHERN SIERRA AIR QUALITY MANAGEMENT DISTRICT

RULE 415 - ATTAINMENT POLLUTANT INCREMENT CONSUMPTION
(Adopted: September 11, 1991)

Every two years, the Air Pollution Control Officer shall estimate emissions from all sources in the District, and utilize available information on emissions from upwind Air Pollution Control Districts to calculate the portion of each increment specified in Rule 413 having been consumed, provided the necessary computer resources are provided by the Air Resources Board or others. The Air Pollution Control Officer shall estimate the difference between actual emissions, averaged over the two year period prior to the date of calculation, or other reasonable period as determined by the Air Pollution Control Officer and maximum allowable emissions for each source operating under Permits to operate prior to January 1, 1981, and shall reserve that difference, and its attendant increment portion for use by the permitted source.