From voting to parking, the ADA is a law that protects people with disabilities in many areas of public life. Skip to main content. An official website of the United States government Here's how you know Here's how you know ... Talk to us at 800-514-0301 1-833-610-1264 (TTY) M, W, F: 9:30am - 12pm and 3pm - 5:30pm ET;