High-noise areas: High-noise areas are areas where noise levels reach 90 dB or above. If there is no documentation indicating noise levels, consider an area a high noise area if the sound of one’s voice at a conversational volume cannot be heard.
High-noise areas: High-noise areas areareas where noise levels reach 90 dB orabove.If there is no documentation indicatingnoise levels, consider an area a high noisearea if the sound of one’s voice at aconversational volume cannot be heard.