Court cases occur because operational administration of the laws may be faulty in individual or related to classes (e.g., restaurant industry, sensory impairments), or there is disagreement about the law itself (e.g., definition of reasonable accommodation), in addition to other reasons (e.g., disagreement that citizens are entitled to civil rights). Experts in civil rights laws are involved in education of governments, Americans with disabilities, citizens, special interest groups (e.g., disability classes), non-profit and for-profit agencies, and community groups on the "application of these federal laws" in daily lives, including workplaces.