SCAQMD Updates Rules 1146 and 1146.1
New low NOx rules adopted Dec. 7, 2018. The Southern CA Air Quality Management District lowered the amount of NOx emissions allowed for firetube boilers from 9 ppm to 7 ppm. NOx limits remain at 9 ppm for all other commercial and industrial heating equipment. R.F. MacDonald Co. created an easy to read, downloadable compliance...
