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A noise exposure assessment is the formal process of identifying which workers in which job classifications are exposed to noise at or above OSHA's action level, and documenting those results in a way that supports hearing conservation program enrollment, audiometric record requirements, and ongoing compliance. Under 29 CFR 1910.95(d) and (e), employers must assess and document worker exposure before enrollment decisions can be made.
Soundtrace links noise exposure assessments directly to employee audiometric records, ensuring every audiogram is matched to the most recent documented exposure level as required by 1910.95(m)(2).
Many employers enroll workers in hearing conservation programs based on informal observation or general knowledge that an area is loud. This is problematic: it may enroll workers who don't need to be enrolled, and more commonly, misses workers who do need enrollment because their variable-task exposure is not obvious from a visual inspection.
Under 1910.95(m)(2)(i)(E), each audiometric test record must include the employee’s most recent noise exposure assessment. An audiogram record without a linked noise exposure assessment is technically incomplete. OSHA inspectors checking audiometric records will verify whether exposure assessments exist and are referenced in the file.
List all classifications whose work locations or tasks may bring them near high-noise equipment. Include nearby workers, material handlers, maintenance technicians, and quality inspectors.
Walk all work areas with a sound level meter. Mark all areas where readings reach or approach 85 dBA on a facility map.
Monitor the highest-exposed worker in each at-risk classification with full-shift dosimetry. Use OSHA settings: 5 dB exchange rate, 90 dBA criterion, 80 dBA threshold.
If the highest-exposed representative reaches or exceeds the action level, the entire classification is enrolled. If below, document as non-enrolled and retain the record.
Record all results with instrument IDs, calibration data, dates, and classification assignments. Link each worker’s noise exposure result to their audiometric file per 1910.95(m)(2).
OSHA's approach is classification-based. If monitoring reveals that a representative of a job classification is at or above the action level, all workers in that classification must be enrolled in the HCP.
Machine operators, press operators, line workers, and assembly workers who work directly with or adjacent to high-noise equipment throughout the shift.
Mechanics, electricians, and millwrights who work in high-noise production areas during repair and preventive maintenance tasks.
Forklift operators, stockers, and receiving dock workers who traverse noise zones for significant portions of the shift.
QC inspectors, line auditors, and engineers positioned near production equipment for extended inspection periods.
| TWA Result | Action Required | HCP Enrollment? |
|---|---|---|
| Below 80 dBA | Document and retain 2 years | No |
| 80–84 dBA | Document, retain 2 years; consider periodic re-assessment | No |
| 85–89 dBA (Action Level) | Enroll classification in HCP; audiometry, HPD, training | Yes |
| 90+ dBA (PEL) | HCP enrollment + engineering/administrative controls | Yes + controls |
Every audiometric test record must include the employee’s most recent noise exposure assessment result. This means maintaining a cross-reference between your noise monitoring database and your audiometric records system. Paper-based programs almost always fail at this linkage. Digital platforms that link both in a single record structure are the only reliable solution at scale.
Soundtrace links every noise monitoring result to the corresponding employee audiometric file—satisfying 1910.95(m)(2) record linkage requirements automatically.
Book a DemoGet a quote for your facility →A noise exposure assessment is a formal measurement and documentation of worker noise exposure to determine whether workers meet or exceed OSHA's 85 dBA action level. Under 1910.95(d), it is required whenever noise levels may equal or exceed the action level. Results must be linked to individual audiometric records per 1910.95(m)(2).
Enrolling workers without a documented noise exposure assessment creates compliance risk. Each audiometric record must include the employee's most recent noise exposure assessment under 1910.95(m)(2). Without that linked assessment, the audiometric record is technically incomplete.
Under 1910.95(m)(3), noise exposure measurement records must be retained for at least 2 years. However, because audiometric records must include the employee's most recent noise exposure assessment, the practical retention period for assessments linked to audiograms is the duration of employment.