Hearing Qualification Standards for CMV Drivers
Under federal regulations, a person is considered physically qualified to operate a Commercial Motor Vehicle (CMV) if they meet one of the following hearing requirements:
- Forced Whisper Test - The individual must be able to perceive a forced whispered voice in their better ear at a distance of at least five feet, with or without the use of a hearing aid.
- Audiometric Test - If tested using an audiometric device, the individual must not have an average hearing loss in the better ear greater than 40 decibels at 500 Hz, 1,000 Hz, and 2,000 Hz, with or without a hearing aid. The audiometric device must be calibrated to American National Standard Z24.5-1951.
Individuals who do not meet these standards may still be eligible to operate a CMV by obtaining a Hearing Exemption from the Federal Motor Carrier Safety Administration (FMCSA).
Applying for a New Hearing Exemption
Step 1 - Obtain the Application
- Download the official FMCSA Hearing Exemption Application from the FMCSA website. (PDF files are located at the bottom of the FMCSA Hearing Exemption page under “Downloads”.)
Step 2 - Review the Sample Application
- Before filling out your form, review the sample hearing waiver application provided by FMCSA. This sample serves as a guideline for completing your own application correctly.
Step 3 - Gather Required Documents
Your application will not be processed without the following:
- A completed hearing exemption application form.
- Any supporting medical documentation requested by FMCSA.
- Additional required forms outlined in the application instructions.
Step 4 - Seek Vocational Rehabilitation Assistance
- Contact your local Vocational Rehabilitation (VR) office to open a case. They may help cover the cost of:
- CDL tuition
- Interpreters
- Your DOT medical exam
- Complete your DOT physical exam with a certified medical examiner. If you qualify, the examiner will issue the Medical Examination Report (long form).
Step 5 - Find a CDL School
- Research and select a truck driving school willing to train deaf and hard-of-hearing students.
Step 6 - Submit the Application
- Send your completed application and all supporting documents to the FMCSA Hearing Exemption Division.
- If applying by email, clearly write in the subject line:
- mathematica
- CopyEdit
- (Your Full Name) - Hearing Exemption Application
- If the subject line is left blank, your application may be flagged as spam and discarded without review.
Step 7 - Application Timeline
- Processing can take up to 180 days.
- Stay in contact with the FMCSA Hearing Exemption Division for updates. Do not simply wait for the mail, proactive follow-up can prevent delays.
Step 8 - Prepare While You Wait
- Visit your state Department of Motor Vehicles (DMV) to obtain a CDL Study Guide.
- Begin preparing for and passing the General Knowledge and Air Brakes written exams to earn your CDL Permit before enrolling in CDL training.
Renewing a Hearing Exemption
To renew your hearing exemption, you must submit the following at least 90 days before your current exemption expires:
- Written Request - Include a short letter or email stating:
- “I am writing to request the renewal of my hearing exemption.”
- Driving Record - A copy of your most recent three-year driving record.
- CDL Copy - Front and back of your current CDL.
- Current Hearing Exemption - A copy of your existing FMCSA-issued hearing waiver.
- DOT Medical Card - A copy of your valid DOT medical card.
- Medical Release Form - A signed release form authorizing FMCSA to access your medical information.
Submission and Follow-up:
- Email all required documents to the FMCSA Hearing Exemption Division.
- Contact the division or use the status check website link provided in your original exemption packet to confirm receipt of your renewal request.
Failure to submit your renewal request on time may result in a lapse of your exemption, which can prevent you from operating a CMV legally.