Construction Health and Safety Technician (CHST) Practice Test 2026 - Free CHST Practice Questions and Study Guide

Question: 1 / 460

According to OSHA's General Industry Standard on Occupational Noise Exposure, if an employee experiences a standard threshold shift, noise levels must be reduced to what level?

80 dBA or less

85 dBA or less

In the context of OSHA's General Industry Standard on Occupational Noise Exposure, if an employee experiences a standard threshold shift, the requirement is to reduce noise levels to 85 dBA or less. This threshold is established to protect workers from potential hearing loss and to ensure a safe working environment.

The standard threshold shift is defined as a change in hearing sensitivity indicating that a worker's hearing has changed to a point where ongoing exposure may further exacerbate the risk of hearing damage. By setting the limit at 85 dBA, OSHA aims to minimize further risk and prevent any long-term effects on hearing.

Noise levels above 85 dBA are considered hazardous, hence, the regulation mandates that once a shift is noted, the noise exposure must be managed down to this safer level, ensuring that workers are not subjected to excessive noise that could lead to hearing impairment.

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90 dBA or less

95 dBA or less

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