OSHA Noise Monitoring Results: Employee Notification Requirements Under 1910.95(e)

Most employers know that OSHA requires noise monitoring when exposures may reach 85 dBA — but far fewer are aware that the monitoring itself creates a downstream obligation: telling employees what their exposure actually is. OSHA 1910.95(e) requires that employees whose monitored exposure equals or exceeds the action level be notified of their noise monitoring results. This notification is separate from the STS notification under 1910.95(g)(8), separate from annual training, and is a standalone compliance obligation that many programs execute poorly or not at all.

Soundtrace integrates noise monitoring results into each worker’s cloud portal profile, making monitoring data available to the employer for worker notification and maintaining the notification record alongside the audiometric data.

What 1910.95(e) Actually Requires

The employee notification provision at 1910.95(e) has two distinct components that are often treated as one but are legally separate obligations:

1. Results notification: The employer must notify each employee whose exposure equals or exceeds the 85 dBA action level of their monitoring results. This means communicating the actual measured exposure data — the TWA or dose percentage — not just a general statement that monitoring occurred and the employee is in the HCP.
2. Observation opportunity: The employer must provide affected employees or their representatives an opportunity to observe any noise measurements conducted. This right is prospective — employees can request to be present during monitoring, and the employer cannot deny this request.

Who Must Be Notified

The notification obligation applies to employees whose monitored TWA equals or exceeds 85 dBA. This encompasses:

• Any employee for whom personal dosimetry was conducted and whose result met or exceeded the action level
• Any employee whose job classification or work area was determined by monitoring to involve exposures at or above 85 dBA TWA, even if they were not personally monitored
• Employees who are monitored as part of re-monitoring after a process or equipment change that produced new at-or-above action level results

Employees who were monitored and found to be below the action level are not explicitly required to be notified under 1910.95(e), though informing them is good practice and supports program transparency. When re-monitoring following a process change confirms that previously at-or-above-action-level employees are now below the threshold, notification of the new below-action-level result supports removing those employees from the HCP with appropriate documentation.

The Employee Right to Observe Monitoring

1910.95(e)’s observation right is often overlooked because it requires the employer to act before monitoring occurs, not just after. The provision requires that affected employees or their representatives be given an opportunity to observe measurements as they are being conducted. Practically, this means:

• Employees should be informed when noise monitoring is scheduled and given the opportunity to be present or designate a representative to observe.
• Union representatives have the right to observe on behalf of their members.
• The employer cannot refuse to allow observation if requested.
• Observation does not mean the employee participates in or controls the monitoring — it means they can watch the process, see the equipment being used, and observe results being collected.

What the Notification Must Actually Communicate

OSHA 1910.95(e) says the employer must notify employees of “the results of the noise monitoring.” This means the actual measurement data, not a general enrollment notice. A compliant notification should include:

• The employee’s measured TWA or noise dose percentage
• The measurement date
• A plain-language explanation of what the result means (e.g., “your measured noise exposure of 88 dBA TWA exceeds OSHA’s action level of 85 dBA”)
• A statement that this result is why the employee is enrolled in the hearing conservation program

Timing of Notification

Unlike the STS notification under 1910.95(g)(8) — which has an explicit 21-day deadline — the monitoring results notification under 1910.95(e) does not carry a specific day count. The standard requires notification of employees exposed at or above the action level but does not specify when after monitoring is completed.

The practical implication is that notification should occur promptly after monitoring results are finalized — not held until the next annual training cycle or program review. For newly monitored employees whose results trigger HCP enrollment, the monitoring results notification should accompany or precede the enrollment notice. For re-monitoring triggered by a process change, notification should follow the results without unnecessary delay.

Methods of Notification: Individual vs. Posted Results

OSHA 1910.95(e) permits two methods of providing monitoring results to employees: individual written notification, or posting the results in a location accessible to all affected employees. Both methods are acceptable.

For personal dosimetry results — where each worker has an individual TWA that may differ from their co-workers — individual written notification is the more appropriate and defensible approach. Posting a group average or range does not provide each employee with their specific result as the standard requires.

Re-Monitoring and the Repeat Notification Obligation

Each time re-monitoring is conducted following a process, equipment, or production change, and that re-monitoring produces results at or above the action level, the notification obligation applies again. Workers with new at-or-above-action-level results from re-monitoring must be notified of those new results — not simply informed that re-monitoring occurred.

This is particularly relevant when re-monitoring shows that exposures have increased significantly (e.g., following installation of new equipment that is louder than what was replaced). Workers whose dose has increased from 86 dBA to 94 dBA should know their exposure has changed, because it affects their understanding of the importance of HPD use and the reason for any HPD upgrade they may be required to receive.

Relationship to Other 1910.95 Notification Requirements

1910.95(e) is one of three distinct notification obligations in OSHA’s hearing conservation standard. They are separate, have different triggers, and serve different purposes:

▶ Bottom line: Monitoring results notification and STS notification are different requirements with different triggers and different content. Neither substitutes for the other. A complete hearing conservation compliance program satisfies all three.

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