Mobile Hearing Testing Services in the Pacific Northwest: What to Know

Thalia Whitney • August 4, 2025

When it comes to hearing conservation, 22 of the 50 states run their own hearing conservation policies instead of the federal regulations. This makes choosing a local provider important, as often national providers overlook important details required at the state level.

State level OSHA hearing conservation regulations

Washington & Oregon are two of the states to have their own hearing conservation regulations.

1. Baseline hearing testing in Oregon

Oregon is one of the few states that do not allow a ‘mobile van exception’ for employees newly enrolled in the hearing conservation program. This means new hires should have their hearing tested within 6 months of being included. 


Trying to manage baselines, make-ups, and retests? We've got a program for that.

2. Age correction in Washington & Oregon

Washington & Oregon are the only two states with special requirements around age correction. While it can be applied to the recordability of a Standard Threshold Shift, it does not remove the shift altogether.


Learn more on Washington & Oregon requirements

3. Hearing test examiner requirements

Unlike most states across the US, both Washington & Oregon require that the test examiner to have certain qualifications. The hearing test should be performed by either a physician, audiologist, otolaryngologist, or CAOHC certified technician.

Environmental considerations of hearing testing

Even weather can influence a person's response when hearing testing. When temperatures are extremely high or low, mobile testing vans often are uncomfortable for the employees taking the test. This can impact their focus and responses.


Why choose boothless audiometry?

Anadyne: your local mobile hearing testing provider

Hearing conservation needs are often time sensitive. Trying to coordinate around time zones can be challenging. And adding in the fact that many hearing test providers are literally ‘here today and gone tomorrow’ makes any sort of follow up needed challenging.


At Anadyne, we’ve got over 30 years of experience in hearing & the Pacific Northwest. Not only are we familiar with the local regulations, but our location makes us able to provide high quality service efficiently.


Book a free consultation with a specialist

Click to find out more or give us a call at  888-972-4420!

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