Section 910.104  Measurement Techniques for 35 Ill. Adm. Code 900

A violation of 35 Ill. Adm. Code 900.102 (nuisance noise) can be established without sound pressure level measurement.  However, sound pressure level measurements may be introduced as corroborating evidence when alleging a violation of 35 Ill. Adm. Code 900.102 if measurements are collected in compliance with the manufacturer's instructions for the sound measuring equipment. The sound measuring techniques in 35 Ill. Adm. Code 910.105 may be used as guidance in gathering data.

(Source:  Amended at 42 Ill. Reg. 20487, effective November 1, 2018)