This brief fact sheet addresses the following concerns about effective communication and accessibility under the Americans with Disabilities Act (ADA): requirements under the ADA for achieving effective communication (e.g., provision of necessary auxiliary communication aids and services); identification of necessary communication aids and services (e.g., expressed preference of the individual); strategies for achieving effective communication; examples of communication aids and services; examples of communication barriers; requirements for communication accessibility under the ADA; examples of readily achievable structural barrier removal strategies; signage and symbols of communication accessibility; discriminatory policies and practices which must be modified; and ways to ensure cost effective ADA compliance. (DB)