Final answer:
The ADA requires that visual notification devices be equipped with a tactile feature, such as Braille signs.
Step-by-step explanation:
The ADA requires that visual notification devices be equipped with a tactile feature. This tactile feature allows individuals with visual impairments to access information through touch. One example of a visual notification device that requires a tactile feature is a Braille sign. Braille signs provide information in raised dots for individuals who are blind or have low vision.