Occupational Hearing Testing Resources
Occupational Hearing Testing FAQ
Authoritative answers to the real-world questions occupational health professionals face — from OSHA compliance edge cases and audiometer calibration to program design and SHOEBOX platform specifics.
4 questions
In-House Testing
Almost always, yes — and most employers already do. Noise monitoring, hearing protection, and annual training are typically run by internal staff already. Audiometric testing is the one element most programs send outside, so “running the program in-house” is really a question about testing. OSHA's requirements are the same either way: an audiometer meeting the referenced specifications, a compliant test environment, qualified test administration, professional review of problem audiograms, and complete records. Nothing in 29 CFR 1910.95 requires a third-party provider.
running hearing testing in house, in practice
What an in-house program needs in practice: a testing system with ambient noise verification, a trained administrator, a professional review arrangement, and one place where records live. Under (g)(3), a technician operating a microprocessor audiometer needs no federal certification, provided they are responsible to an audiologist, otolaryngologist, or physician. Some states, such as Oregon, Washington, Texas, and Ohio, add their own certification or registration requirements. Employers move hearing testing in-house for two things: scheduling control, so they can test whenever it suits production (nights, weekends, or the day a new hire starts), and direct ownership of their program data.
Per-employee cost depends on both the delivery model and headcount, and the per-test quote doesn't account for model-specific costs. Compare options on full cost rather than quoted price: testing fees or equipment costs, production time lost during testing, makeup testing for absent employees, and new-hire baselines between annual visits.
hearing conservation program cost, beyond the quote
Three questions surface the true cost of any option: What happens when an employee is on vacation, on nights, or out sick on test day? What does a new hire’s baseline cost when the next scheduled visit is months away? And how much production time does each tested employee lose, door-to-door? Each of those varies with how testing is delivered. Absences and off-schedule employees create makeup testing; a new hire’s baseline waits until testing next happens; and production time depends on whether people travel to the test or the test comes to them. In-house testing keeps all three under your control — testing happens where people already work, so the time cost is the test itself, and you can do a baseline the week someone starts. Our guide to clinic, mobile-clinic, and boothless testing options works through the trade-offs model by model.
In-house testing makes sense when you need scheduling control, immediate results, and multi-site consistency. Outsourcing makes sense when the testing volume is too small to justify the cost of equipment and a trained administrator. The break-even turns on workforce size and site count. OSHA permits either model, with the same program requirements.
in-house versus outsourced testing: the break-even
One regulatory provision changes the math: under 29 CFR 1910.95(g)(3), a technician operating a microprocessor audiometer does not need federal certification. The same paragraph requires that the technician report to an audiologist, otolaryngologist, or physician. Some states, such as Oregon, Washington, Texas, and Ohio, add their own certification or registration requirements. Testing is within reach for staff you already employ, provided the oversight relationship is in place. Our in-house vs. outsourcing guide covers the full decision framework.
OSHA 29 CFR 1910.95(g)(7)(iii) requires that problem audiograms be reviewed by an audiologist, otolaryngologist, or other physician who determines whether further evaluation is needed. A problem audiogram is one whose results warrant professional judgment rather than routine filing: one showing a Standard Threshold Shift (STS), or one with an unusual configuration, a large asymmetry between the ears, or signs that test conditions affected validity.
professional audiogram review under 1910.95(g)(7)(iii)
The routine comparison is a separate task. The standard requires it but does not assign it: (g)(7)(i) says only that it “may be done by a technician” — permission rather than a limit — which is why it usually falls to whoever ran the test.
Professional review is the one element most programs source externally, whether testing is in-house or not — few employers have an audiologist on staff. SHOEBOX Audiological Services pairs in-house testing with review by licensed audiologists who work directly in your SHOEBOX Data Management Portal, so nothing is exported, and problem audiograms receive a professional determination in the system where your records already live.