326 IAC 1-2-54 "Positive net air quality benefit" defined

Sec. 54. The net result of offsetting new allowable emissions with reduced actual or allowable emissions such that the net sum of the projected changes in the ambient air quality in the affected area will be positive and that at no receptor will there be a significant increase in the pollutant levels due to the projected changes. However, in no event will credit for positive net air quality benefit be given for sources which merely achieve compliance with the applicable allowable emission limits by reducing actual emissions to said allowable limits.