Circular 24/2016/TT-BYT prescribes the National Technical Regulation on Noise - Permissible Exposure Levels of Noise in the Workplace, issued on June 30, 2016. Accordingly:
- The general sound pressure level at the workplace, where labor and direct production occur, must not exceed 85 dBA;- In cases where the workplace has not yet implemented the solutions to reduce the sound pressure level below 85 dBA, hearing protection for employees must be implemented. The hearing protection equipment for employees must meet the following requirements:- Sound pressure level <90 dBA: Noise reduction efficiency of the hearing protection equipment from 10-13 dBA;- Sound pressure level from 90 to <95 dBA: Noise reduction efficiency of the hearing protection equipment from 14-17 dBA;- Sound pressure level from 95 to <100 dBA: Noise reduction efficiency of the hearing protection equipment from 18-21 dBA;- Sound pressure level from 100 to <105 dBA: Noise reduction efficiency of the hearing protection equipment from 22-25 dBA;- Sound pressure level from 105 to <110 dBA: Noise reduction efficiency of the hearing protection equipment from ≥ 26 dBA.
Circular 24/2016/TT-BYT takes effect from December 1, 2016 (The standards stipulated in the Circular are not applicable to individuals working with headphones).
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