As business owners, we are always eager to welcome all their customers. We try to make our business reach everyone, including step-free entrances, wide passageways, alarm systems, etc. The mandatory tactileindicator (s) or signs in your building should also be understandable by everyone. mandatory tactile indicator According to a survey , nearly 20 percent of U.S. citizens have some form of disability. When your business doesn't stand on ADA guidelines and isn't in the reach of anyone, there are always chances of losing customers. Considering the rules and regulations and requirements of the Americans with Disabilities Act (ADA) can encourage your business to gain more customers. As a contractor, you should ISO tactile warning indicators. Tactile Signs: Raised Characters & Braille The standards outlined for raised characters in Section 703 : · Uppercase · 1/32 inch above the background · In a sans serif font —