This is what I found.
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Accommodation Examples
If you are deaf and understand sign language, we may provide a sign language interpreter for a USCIS appointment.
If you are hard of hearing, we may provide captioning or an assistive listening device for a USCIS outreach event.
If you are unable to travel for an appointment with USCIS due to a serious medical condition, USCIS may visit you at your home or a medical facility.
If you are unable to use your hands, we may allow you to take the writing part of the naturalization test orally.
If you are unable to speak and/or are deaf, that is considered a disability. However, if you are unable to speak English because you do not understand English (but you can vocalize other languages), that is not a disability and we will not provide an interpreter unless you are otherwise eligible.
How to Request an Accommodation
If you need to request a disability accommodation:
Go to uscis.gov/accommodations to make your request online; or
Ask the USCIS Contact Center for help in English or Spanish.
If you need an accommodation for an appointment (fingerprinting, interview, naturalization ceremony, etc.), we encourage you to request your accommodation immediately when you receive your appointment notice.
https://www.uscis.gov/about-us/disability-accommodations-for-the-public