Home ยป As per B.I.S. code, the acceptable indoor noise level in Court rooms is Noise Pollution MCQs As per B.I.S. code, the acceptable indoor noise level in Court rooms is May 4, 2022 15 Views Q. As per B.I.S. code, the acceptable indoor noise level in Court rooms is A. 55 dB B. 45 dB C. 20 dB D. 75 dB Answer: 45 dB