ADA signage requirements are federal standards under the Americans with Disabilities Act that dictate how certain signs in public and commercial buildings must be designed and installed. The rules cover tactile (raised) lettering, Grade 2 Braille, font style, color contrast, non-glare finishes, and mounting height. They apply to any business that serves the public, regardless of size, and noncompliance can lead to lawsuits, DOJ complaints, and fines starting at $75,000.