I have copied the requirements regarding Hearing Aids and Airport Security right from the TSA below--this is for people traveling through airports - with hearing aids:
* If the screening process is unclear to you, ask the Security Officer to write the information down.
* If you can read lips or are hard of hearing, ask the Security Officer to look directly at you and repeat the information slowly.
* If you need to communicate with the Security Officer, inform her/him of your disability and the way in which you can communicate. TSA Security Officers are trained to provide whatever assistance they can to persons with hearing disabilities.
* It is not necessary to remove hearing aids or the exterior component of a cochlear implant at security checkpoints.
* It is best if you wear your hearing device while going through the metal detector.
* According to Otolaryngologist ENTs, hearing devices such as hearing aids, cochlear implants, external component of cochlear implants, and middle ear implants are not affected by X-ray inspection, the walk-through metal detector, or the hand-held metal detector.
* If you are concerned or uncomfortable with going through the walk-thorough metal detector, or are uneasy with having your external component of your cochlear implant X-rayed, you can ask for a full body pat-down of your person and a visual and physical inspection of the exterior component while it remains on your body.
* If you use a hearing dog, you and the dog will remain together at all times while going through the security checkpoint. See the "Service Animal" section for more tips on service animals in the screening process.