Home ยป As per IS code, acceptable noise level for residential and business urban areas is Noise Pollution MCQs As per IS code, acceptable noise level for residential and business urban areas is May 4, 2022 11 Views Q. As per IS code, acceptable noise level for residential and business urban areas is A. 50-60 db B. 70-80 db C. 25-35 db D. 40-50 db Answer: 40-50 db